{"title":"Rupert Neve Designs","description":"","products":[{"product_id":"rupert-neve-designs-rndi-m-active-transformer-direct-interface","title":"Rupert Neve Designs RNDI-M Active Transformer Direct Interface","description":"\u003cp\u003eDI Box with Class A Amplifiers, Neve Custom Transformers, and +20.5dBu Maximum Input Level\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompact design - giant tone.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI-M brings the stunning tone \u0026amp; clarity of its award-winning counterparts to an even more compact and pedalboard-friendly format, with the exact same custom Rupert Neve Designs transformers and discrete FET input stage as the best-selling RNDI, RNDI-S and RNDI-8.\u003c\/p\u003e\n\u003cp\u003eBy streamlining its feature set and housing the electronics in a rugged \u0026amp; more compact chassis, the RNDI-M fits neatly into any space and will allow even more musicians and engineers to tap into the uncompromised sonic power \u0026amp; vibrancy of a Rupert Neve Designs DI.\u003c\/p\u003e\n\u003cp\u003eThe RNDI-M provides instrument direct injection for electric guitar \u0026amp; basses, synthesizers, keyboards, piezo pickups, or any other instrument-level source.\u003c\/p\u003e\n\u003cp\u003eThe discrete, Class-A circuit topology is built around Mr. Rupert Neve's custom transformers, resulting in outstanding sonic performance and strikingly natural sound from below 5Hz all the way up to well beyond 90kHz. It can handle input levels up to +20.5dBu, the low impedance, transformer-coupled output stage drives long lines with minimal loss, and the rugged steel chassis is designed for a lifetime of stage and studio use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe RNDI-M's Origins\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAfter coming into existence during an experimentation with new transformer designs, the RNDI circuitry was fine-tuned over a series of listening tests against the most popular high-end DIs available. It was in these tests where the RNDI always seemed to add another dimension to the sound and bring the instruments to life. The lows felt richer, deeper and fuller, and the highs had outstanding clarity without any added harshness.\u003c\/p\u003e\n\u003cp\u003eMost importantly, the design team noted: \"As musicians, the RNDI consistently stood out as the DI we wanted to play through.\"\u003c\/p\u003e\n\u003cp\u003eOver 35,000 channels of RNDI have been sold since its debut in 2015, and they are in daily use in studios and on stages with the world's biggest artists: Billie Eilish, The Rolling Stones, Olivia Rodrigo, Paul Simon, Billy Strings, AC\/DC, Thundercat, Tycho, Halsey, Jack White, Stevie Wonder, and countless others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignature Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI-M's signature sound is primarily the product of a custom Rupert Neve Designs transformer and a class-A, discrete FET input stage. The carefully orchestrated union of these two elements is key to the RNDI-M's unique accuracy, tone, and response.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHE CUSTOM TRANSFORMER\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI-M's custom-wound output transformer provides exceptional passive isolation while adding musical harmonics and dimension to the sound. The low impedance, transformer-balanced output excels at driving long cable runs, and its performance is consistent regardless of the connected equipment. This is equally important for both live and studio environments where the audio signal may travel almost 100ft before hitting an amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHE CLASS-A, DISCRETE FET AMPLIFIER\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe class-A, discrete FET input stage in the RNDI-M is powered by external +48V phantom with a high impedance input of 2.2 Megaohms that ensures consistent performance with a wide variety of instruments \u0026amp; other sources. The class-A design ensures that zero crossover distortion is added to the signal, which can add upper-order odd harmonics that are musically dissonant in nature. With the RNDI- M, the majority of harmonic content is a pleasing combination of 2nd order (octave) and 3rd order (fifth above octave). These musically relevant harmonics, present in subtle amounts, enhance the richness of the original signal and provide a distinctly musical response. Furthermore, the discrete aspect of the RNDI-M's design means there are no ICs or digital components that may cause negative effects on the tone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWide Bandwidth, Giant Headroom\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI-M is flat within a quarter dB from 28Hz to 60kHz, +\/- 1dB up to 90kHz, with low frequency response all the way down below 5Hz. However, measurements are only part of the equation: combine this extended bandwidth with the output transformer's harmonic enhancement, and a thunderous low-end emerges that feels an octave deeper than anything else without losing any midrange richness or top-end sparkle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor Guitar, Bass, Synth, Keys, and more\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI-M's uniquely high input headroom of +20.5 dBu is capable of handling not only instruments, but a wide variety of sources such as synths, keyboards, drum machines and even pre-recorded material. This allows the RNDI-M to inject that coveted Rupert Neve Designs tone into a huge range of sources.\u003c\/p\u003e\n\u003ch2\u003eFEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroundbreaking Direct Tone\u003c\/strong\u003e\u003cbr\u003eWhen class-A, discrete amplifiers meet Rupert's custom transformers, amazing things happen. The RNDI-M contains the unique components and design knowledge that makes it worthy of the Rupert Neve name.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHuge Headroom\u003c\/strong\u003e\u003cbr\u003eMaximum input level is a massive +20.5dBu, making the RNDI-M capable of handling not only instruments but also keyboards, drum machines and even pre-recorded material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Solid Steel Frame\u003c\/strong\u003e\u003cbr\u003eThe rugged steel chassis is built to withstand the severe stresses of life on the road.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse a Variety of Sources\u003c\/strong\u003e\u003cbr\u003eThe RNDI-M has immensely consistent performance across a wide variety of sources due to its 2.2M Ohm discrete FET input stage and high headroom. The RNDI-M can be used with confidence on guitars, synths, basses, acoustic instruments, keyboards \u0026amp; drum machines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Longer Lines\u003c\/strong\u003e\u003cbr\u003eThe low impedance transformer coupled output - below 40 ohms - is capable of driving long lines while maintaining exceptional high frequency performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" THRU Output\u003c\/strong\u003e\u003cbr\u003eThe THRU output can be used to maintain optimal input level to an amplifier with no signal degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Lift\u003c\/strong\u003e\u003cbr\u003eA Ground Lift switch is provided on the rear panel to isolate Pin 1 on the XLR balanced output from the circuit ground to help fix any potential grounding issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhantom Powered\u003c\/strong\u003e\u003cbr\u003eThe RNDI-M is powered by standard 48V phantom power. Power is indicated by a blue LED on the front panel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNOISE (22 Hz - 22 kHz, Un-weighted): Better than -110 dBV\u003c\/li\u003e\n\u003cli\u003eINPUT IMPEDANCE: Instrument Input: 2.2 Megohm\u003c\/li\u003e\n\u003cli\u003eOUTPUT IMPEDANCE: Less than 40 Ohms\u003c\/li\u003e\n\u003cli\u003eMAXIMUM INPUT LEVEL: Instrument Input: +20.5 (8.2 Volts RMS)\u003c\/li\u003e\n\u003cli\u003eMAXIMUM OUTPUT LEVEL: +11.5 dBu Typical\u003c\/li\u003e\n\u003cli\u003eFREQUENCY RESPONSE:\u003cbr\u003e+\/- 0.25 dB from 28 Hz - 60 kHz\u003cbr\u003e+\/- 1 dB from 14 Hz - 90 kHz\u003cbr\u003e-3 dBu below 5 Hz\u003c\/li\u003e\n\u003cli\u003eTOTAL HARMONIC DISTORTION + NOISE:\u003cbr\u003e@ 1 kHz, +20 dBu input level: 0.25% Typical (2nd and 3rd Harmonic)\u003cbr\u003e@ 1 kHz, -20 dBu input level: 0.015% Typical (2nd and 3rd Harmonic)\u003cbr\u003e@ 20 Hz, -20 dBu input level: 0.75% Typical (2nd and 3rd Harmonic)\u003c\/li\u003e\n\u003cli\u003ePOWER REQUIREMENTS: 4.5mA @ +48VDC\u003c\/li\u003e\n\u003cli\u003eUNIT DIMENSIONS: 3.25\" W x 4.3\" D x 1.6\" H (8.25 cm W x 10.9 cm D x 4 cm H)\u003c\/li\u003e\n\u003cli\u003eUNIT WEIGHT: 1 lb. (0.45 kg)\u003c\/li\u003e\n\u003cli\u003eSHIPPING DIMENSIONS: 5.13\" W x 4.13\" D x 2\" H (13 cm W x 10.5 cm D x 5.1 cm H)\u003c\/li\u003e\n\u003cli\u003eSHIPPING WEIGHT: 1.25 lbs. (0.57 kg)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rupert Neve Designs","offers":[{"title":"Default Title","offer_id":47589781864626,"sku":"RND RNDIM","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/8122\/2322\/files\/1742546730_1881667.jpg?v=1781624792"},{"product_id":"rupert-neve-designs-rndi-active-transformer-direct-interface","title":"Rupert Neve Designs RNDI Active Transformer Direct Interface","description":"\u003cp\u003eMono Active Direct Box with Custom Transformers, Class-A, Discrete FET Amplifier Circuit, Rugged Steel Chassis, Ground Lift, Speaker\/Instrument Switch, and LED Current Consumption Meter\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStunning tone \u0026amp; clarity for all of your instruments.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI contains a custom Rupert Neve-designed output transformer and class-A, discrete FET input stage. This carefully designed combination is the key to the RNDI's unparalleled performance, delivering a powerful and vibrant direct sound that captures the full harmonic depth of basses, guitars, acoustic instruments, and even pre-recorded material.\u003c\/p\u003e\n\u003cp\u003eWith portable, powerful, larger-than-life tone for a variety of instrument and amplifier signals, the RNDI is truly the first stand-alone DI worthy of the Rupert Neve name.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Development\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAfter coming into existence during an experimentation with new transformer designs, the RNDI was fine-tuned over a series of listening tests against the most popular high-end DIs available. It was in these tests where the RNDI always seemed to add another dimension to the sound and bring the instruments to life. The lows felt richer, deeper and fuller, and the highs had outstanding clarity without any added harshness.\u003c\/p\u003e\n\u003cp\u003eMost importantly, the design team noted:\u003c\/p\u003e\n\u003cp\u003e\"As musicians, the RNDI consistently stood out as the DI we wanted to play through.\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignature Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI's signature sound is the result of a new Rupert Neve-designed output transformer and a class-A, discrete FET input stage. The carefully orchestrated union of these two elements is key to the RNDI's accuracy, tone and response.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHE TRANSFORMER\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe custom output transformer provides exceptional isolation while introducing musical harmonics and dimension to the sound. The low impedance, transformer-balanced output excels at driving long cable runs, and performance is immensely consistent regardless of the connected equipment. This is very important for both live and studio environments where the audio signal may travel over 100ft before hitting an amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHE CLASS-A, DISCRETE FET INPUT STAGE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe class-A, discrete FET input stage in the RNDI is powered by 48V phantom, providing a high impedance input of 2.2M Ohms that ensures consistent performance with a wide variety of instruments. The class-A design introduces no crossover distortion to the signal, which can add upper-order odd harmonics that are musically dissonant in nature. With the RNDI, the majority of harmonic content is a pleasing combination of 2nd order (octave) and 3rd order (fifth above octave). These musically relevant harmonics, present in subtle amounts, enhance the richness of the original signal and provide a distinctly musical response. And the discrete nature of the RNDI design means there are no ICs or digital components that can have negative effects on the tone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMassive Headroom + Speaker Mode\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn Instrument Mode, the RNDI's uniquely high input headroom of +20.5 dBu is capable of handling not only instruments, but a wide variety of sources, such as synths, keyboards, drum machines and even pre-recorded material. This allows the RNDI-M to inject that coveted Rupert Neve Designs tone into a wide variety of sources.\u003c\/p\u003e\n\u003cp\u003eIn speaker mode, the RNDI can handle the screaming output of a 1000-watt solid-state power amplifier (92 Vrms or 266Vp-p) to capture the full tone of the instrument, preamplifier, EQ, inserts, and the amplifier's output stages before it hits the speaker cabinet. This technique allows the engineer to avoid any bleed in a live environment and any unwanted tone added by the speaker cabinet or microphone. Also, speaker mode can be especially useful when feeding the RNDI line-level sources since it increases the input headroom even further…\u003c\/p\u003e\n\u003cp\u003eWhen used with modern amp \/ speaker emulation plug-ins or hardware (like a Kemper or Fractal unit), this technique allows the engineer to take advantage of both the flexibility of digital modeling and the superior non-linear response of an actual analog amplifier.\u003c\/p\u003e\n\u003ch2\u003eCONTROLS \u0026amp; I\/O:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1\/4\" INPUT\u003cbr\u003eHi-Z unbalanced input:\u003cbr\u003e2.2M Ohms (Instrument)\u003cbr\u003e200 kOhms (Speaker)\u003c\/li\u003e\n\u003cli\u003e1\/4\" THRU\u003cbr\u003eParallel 1\/4\" port used to send signal to an amp (instrument mode) or speaker (speaker mode).\u003c\/li\u003e\n\u003cli\u003eSPEAKER \/ INSTRUMENT INPUT LEVEL\u003cbr\u003eSelects Speaker or Instrument level.\u003cbr\u003eMax input: +20.5dBu Instrument, +41dBu Speaker\u003c\/li\u003e\n\u003cli\u003e48V POWER LED\u003cbr\u003eIndicates that +48V phantom power is present from the connected mic preamp (required to power the RNDI).\u003c\/li\u003e\n\u003cli\u003eGROUND LIFT\u003cbr\u003eIsolates the XLR Pin 1 from the circuit ground.\u003c\/li\u003e\n\u003cli\u003eOUTPUT\u003cbr\u003eTransformer-balanced XLR output. Impedance less than 40 Ohms. Phantom power to the RNDI is supplied through this connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFEATURES:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroundbreaking Direct Tone\u003c\/strong\u003e\u003cbr\u003eWhen class-A, discrete amplifiers meet Rupert's custom transformers, good things happen to your tone. The RNDI is imbued with the unique components and design knowledge that makes it worthy of the Rupert Neve name.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHuge Headroom\u003c\/strong\u003e\u003cbr\u003eThe high input headroom of +20.5 dBu (typical) is capable of handling a wide range of sources - and in speaker mode, the RNDI can handle the full output of a 1000-watt power amplifier (92 Vrms or 266Vp-p).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Solid Steel Frame\u003c\/strong\u003e\u003cbr\u003eThe rugged steel chassis features an industrial-grade powder coating, and is built to withstand the severe stresses of life on the road.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse a Variety of Sources\u003c\/strong\u003e\u003cbr\u003eThe RNDI has immensely consistent performance across a wide variety of sources due to its 2.2M Ohm discrete FET input stage and high headroom. The RNDI can be used with confidence on guitars, synths, basses, acoustic instruments, keyboards \u0026amp; drum machines. And in speaker mode the input headroom increases even further, providing an easy way to inject the pleasing harmonic content of the RNDI into literally any source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Longer Lines\u003c\/strong\u003e\u003cbr\u003eThe low impedance transformer-coupled output - below 40 ohms - is capable of driving long lines while maintaining exceptional high frequency performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" THRU Output\u003c\/strong\u003e\u003cbr\u003eIn instrument mode the THRU output can feed the amplifier input for reinforcement. In speaker mode, the THRU is used to feed the amplified signal to the speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Lift\u003c\/strong\u003e\u003cbr\u003eA ground lift switch is provided on the back to help fix any problematic grounding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhantom Powered\u003c\/strong\u003e\u003cbr\u003eThe RNDI is powered by standard 48V phantom power. Power is indicated by a blue LED on the front panel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSPECIFICATIONS:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNOISE (22 Hz - 22 kHz, Un-weighted): Better than -110 dBV\u003c\/li\u003e\n\u003cli\u003eINPUT IMPEDANCE:\u003cbr\u003eInstrument Mode: 2.2 Megohm\u003cbr\u003eSpeaker Mode: 200 Kilohm\u003c\/li\u003e\n\u003cli\u003eOUTPUT IMPEDANCE: Less than 40 Ohm\u003c\/li\u003e\n\u003cli\u003eFREQUENCY RESPONSE:\u003cbr\u003e+\/- 0.25 dB from 28 Hz - 60 kHz\u003cbr\u003e+\/- 1 dB from 14 Hz - 90 kHz\u003cbr\u003e-3 dBu below 5 Hz\u003c\/li\u003e\n\u003cli\u003eMAXIMUM INPUT LEVEL:\u003cbr\u003eInstrument Mode: +20.5 dBu (8.2 Volts RMS) Typical\u003cbr\u003eSpeaker Mode: +41 dBu (87 Volts RMS) Typical\u003c\/li\u003e\n\u003cli\u003eMAXIMUM OUTPUT LEVEL: +11.5 dBu Typical\u003c\/li\u003e\n\u003cli\u003eTOTAL HARMONIC DISTORTION + NOISE:\u003cbr\u003e@ 1 kHz, +20 dBu input level: 0.25% Typical (2nd and 3rd Harmonic)\u003cbr\u003e@ 1 kHz, -20 dBu input level: 0.015% Typical (2nd and 3rd Harmonic)\u003cbr\u003e@ 20 Hz, -20 dBu input level: 0.75% Typical (2nd and 3rd Harmonic)\u003c\/li\u003e\n\u003cli\u003ePOWER REQUIREMENTS: 4.5mA Per Channel @ +48VDC\u003c\/li\u003e\n\u003cli\u003eUNIT DIMENSIONS: 4\" W x 6.25\" D x 1.75\" H (10.2 cm W x 15.9 cm D x 4.5 cm H)\u003c\/li\u003e\n\u003cli\u003eUNIT WEIGHT: 1 lb. (0.45 kg)\u003c\/li\u003e\n\u003cli\u003eSHIPPING DIMENSIONS: 10\" W x 8\" D x 3\" H (25.4 cm W x 20.3 cm D x 7.6 cm H)\u003c\/li\u003e\n\u003cli\u003eSHIPPING WEIGH: 3 lbs. (1.4 kg)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rupert Neve Designs","offers":[{"title":"Default Title","offer_id":47589801394354,"sku":"RND RNDI","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/8122\/2322\/files\/1424770569_1119950.jpg?v=1781625483"},{"product_id":"rupert-neve-designs-rndi-s-stereo-active-transformer-direct-interface","title":"Rupert Neve Designs RNDI-S Stereo Active Transformer Direct Interface","description":"\u003cp\u003eStereo Active Direct Box with Custom Transformers, Discrete Class-A FET Amplifier Circuit, Rugged Steel Chassis, Ground Lift, 3.5mm Stereo Input Jack, and LED Current Consumption Meter\u003c\/p\u003e\n\u003cp\u003eAn expanded two-channel version of our wildly popular RNDI, providing massive tone \u0026amp; headroom for all of your instruments \u0026amp; stereo sources.\u003c\/p\u003e\n\u003cp\u003eThe RNDI-S contains custom Rupert Neve-designed output transformers and class-A, discrete FET input stages. This carefully designed combination is the key to the unparalleled performance of the RNDI-S, delivering a powerful and vibrant direct sound that captures the full harmonic depth of basses, guitars, acoustic instruments, pre-recorded material and even consumer devices via the 3.5mm stereo input jack.\u003c\/p\u003e\n\u003cp\u003eWith portable, powerful, larger-than-life tone, the RNDI-S is ready to make your stereo or mono direct sources shine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Development of the RNDI\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAfter coming into existence during an experimentation with new transformer designs, the RNDI was fine-tuned over a series of listening tests against the most popular high-end DIs available. It was in these tests where the RNDI always seemed to add another dimension to the sound and bring the instruments to life. The lows felt richer, deeper and fuller, and the highs had outstanding clarity without any added harshness.\u003c\/p\u003e\n\u003cp\u003eMost importantly, the design team noted:\u003c\/p\u003e\n\u003cp\u003e\"As musicians, the RNDI consistently stood out as the DI we wanted to play through.\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignature Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe signature sound of the RNDI-S is the result of new Rupert Neve-designed output transformers and class-A, discrete FET input stages. The carefully orchestrated union of these elements is key to the accuracy, tone and response of the RNDI-S.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHE TRANSFORMERS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe custom output transformers provide exceptional isolation while introducing musical harmonics and dimension to the sound. The low impedance, transformer-balanced outputs excel at driving long cable runs, and performance is immensely consistent regardless of the connected equipment. This is very important for both live and studio environments where the audio signal may travel over 100ft before hitting an amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHE CLASS-A, DISCRETE FET AMPLIFIERS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe class-A, discrete FET input stage in the RNDI-S is powered by 48V phantom, providing a high impedance input of 2.2M Ohms that ensures consistent performance with a wide variety of instruments. The class-A design introduces no crossover distortion to the signal, which can add upper-order odd harmonics that are musically dissonant in nature. With the RNDI-S, the majority of harmonic content is a pleasing combination of 2nd order (octave) and 3rd order (fifth above octave). These musically relevant harmonics, present in subtle amounts, enhance the richness of the original signal and provide a distinctly musical response. And the discrete nature of the RNDI-S design means there are no ICs or digital components that can have negative effects on the tone.\u003c\/p\u003e\n\u003ch2\u003eCONTROLS \u0026amp; I\/O\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 1\/4\" INPUTS\u003c\/strong\u003e\u003cbr\u003eHi-Z unbalanced inputs with 2.2M Ohms input impedance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 1\/4\" THRU JACKS\u003c\/strong\u003e\u003cbr\u003eParallel 1\/4\" jacks used to send signal to an amp or speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5MM INPUT\u003c\/strong\u003e\u003cbr\u003eStereo unbalanced input with 95 kOhm input impedance. Ch 1 = Tip, Ch 2 = Ring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eINPUT SELECT\u003c\/strong\u003e\u003cbr\u003eSelects 1\/4\" Input or 3.5mm Input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e48V POWER LEDS\u003c\/strong\u003e\u003cbr\u003eIndicates that +48V phantom power is present for each channel from the connected mic preamp(s). Power must be supplied independently to both channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGROUND LIFT\u003c\/strong\u003e\u003cbr\u003eIsolates the XLR Pin 1 from the circuit ground for each channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOUTPUT\u003c\/strong\u003e\u003cbr\u003eTransformer-balanced XLR output. Impedance \u0026lt;40 Ohms. Phantom power to the RNDI-S is supplied through these connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCustom Rupert Neve Designs transformers for rich, powerful tone\u003c\/li\u003e\n\u003cli\u003eExceptional performance with any instrument\u003c\/li\u003e\n\u003cli\u003eUnrivaled clarity from discrete FET amplifiers\u003c\/li\u003e\n\u003cli\u003eDrives long lines with minimal loss\u003c\/li\u003e\n\u003cli\u003eRugged steel frame built for life on the road\u003c\/li\u003e\n\u003cli\u003ePowered by dual 48V phantom power\u003c\/li\u003e\n\u003cli\u003eExcellent phase coherence at all frequencies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNOISE (22 Hz - 22 kHz, Un-weighted): Better than -110 dBV\u003c\/li\u003e\n\u003cli\u003eINPUT IMPEDANCE: \u003cbr\u003eInstrument Input: 2.2 Megohm\u003cbr\u003e3.5mm Input: 95 Kilohm\u003c\/li\u003e\n\u003cli\u003eOUTPUT IMPEDANCE: Less than 40 Ohm\u003c\/li\u003e\n\u003cli\u003eFREQUENCY RESPONSE: \u003cbr\u003e+\/- 0.25 dB from 28 Hz - 60 kHz\u003cbr\u003e+\/- 1 dB from 14 Hz - 90 kHz\u003cbr\u003e-3 dBu below 5 Hz\u003c\/li\u003e\n\u003cli\u003eMAXIMUM INPUT LEVEL: Instrument Input: +20.5 dBu (8.2 Volts RMS) Typical\u003c\/li\u003e\n\u003cli\u003eMAXIMUM OUTPUT LEVEL: +11.5 dBu Typical\u003c\/li\u003e\n\u003cli\u003eTOTAL HARMONIC DISTORTION + NOISE: \u003cbr\u003e@ 1 kHz, +20 dBu input level: 0.25% Typical (2nd and 3rd Harmonic)\u003cbr\u003e@ 1 kHz, -20 dBu input level: 0.015% Typical (2nd and 3rd Harmonic)\u003cbr\u003e@ 20 Hz, -20 dBu input level: 0.75% Typical (2nd and 3rd Harmonic)\u003c\/li\u003e\n\u003cli\u003ePOWER REQUIREMENTS: 4.5mA Per Channel @ +48VDC\u003c\/li\u003e\n\u003cli\u003eMOUNTING OPTIONS: \u003cbr\u003e19\" Rack Shelf Mounting Option\u003cbr\u003e4 hole pattern (bottom of unit) for 6-32 machine screws\u003c\/li\u003e\n\u003cli\u003eUNIT DIMENSIONS: 5\" W x 7\" D x 1.75\" H (12.7 cm W x 17.8 cm D x 4.5 cm H)\u003c\/li\u003e\n\u003cli\u003eUNIT WEIGHT: 2.5 lbs. (1.1 kg)\u003c\/li\u003e\n\u003cli\u003eSHIPPING DIMENSIONS: 10\" W x 8\" D x 3\" H (25.4 cm W x 20.3 cm D x 7.6 cm H)\u003c\/li\u003e\n\u003cli\u003eSHIPPING WEIGHT: 3.5 lbs. (1.6 kg)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rupert Neve Designs","offers":[{"title":"Default Title","offer_id":47589948686514,"sku":"RND RNDIS","price":499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/8122\/2322\/files\/1543328648_1445737.jpg?v=1781628844"},{"product_id":"rupert-neve-designs-rndi-8-8-channel-1u-active-transformer-direct-interface","title":"Rupert Neve Designs RNDI-8 8-Channel 1U Active Transformer Direct Interface","description":"\u003cp\u003e8-channel Active Direct Box with Custom Transformers, Discrete FET Input Amplifiers, and Per-channel Ground Lifts and -10dB Pads\u003c\/p\u003e\n\u003cp\u003eLegendary tone, unquestionable reliability. Eight channels of the superb-sounding RNDI in one rack space.\u003c\/p\u003e\n\u003cp\u003eWith over 25,000 channels shipped since its launch in 2015, the RNDI is firmly established as the direct interface of choice for many of the world's most discerning musicians and engineers. Its custom transformers and discrete FET input stages deliver a vibrancy and clarity that captures the full harmonic depth of any source, and its unquestionable reliability has led to its adoption by thousands of touring artists.\u003c\/p\u003e\n\u003cp\u003eThe RNDI-8 puts eight channels of this beloved circuit into a single rack space, making it the ideal solution for high-end stage rigs, studios, and synth enthusiasts. With the RNDI-8, stunning direct sound doesn't require extra work - it's just there.\u003c\/p\u003e\n\u003cp\u003eThe RNDI-8 consists of eight independent channels of RNDI Active Transformer Direct Interface in a single rack space, providing instrument direct injection for electric guitar \u0026amp; bass, synthesizer, keyboard, piezo pickup, or any other instrument-level source.\u003c\/p\u003e\n\u003cp\u003eThe discrete, class-A circuit topology is built around Mr. Rupert Neve's custom output transformers, resulting in outstanding sonic performance and supremely natural sound from below 5Hz all the way up to well beyond 90kHz. Each channel can handle typical input levels up to +20.5 dBu (+30.5 dBu with the pad engaged), the low impedance transformer-coupled output drives long lines with minimal loss, and the rugged chassis' steel construction is designed for a lifetime of stage and studio use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTransformer + Discrete FET: The Best of Both Worlds\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI-8's signature sound stems from the custom-designed output transformers and the class-A, discrete FET input stages. The carefully designed union of these two elements is key to the RNDI-8's unique accuracy, tone, and response.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHE EIGHT CUSTOM TRANSFORMERS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI-8's custom-wound output transformers provide isolation while adding musical harmonics and dimension to the sound. The low impedance, transformer-balanced outputs excel at driving long cable runs, and the performance is consistent regardless of the connected equipment. This is important for both live and studio environments where the audio signal may travel 100ft or more before hitting an amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHE CLASS-A, DISCRETE FET INPUT AMPLIFIERS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe class-A \u0026amp; discrete FET input stages in the RNDI-8 are powered by 48V phantom and create a high impedance input of 2.2M Ohms, ensuring consistent performance with a wide variety of instruments. The class-A design introduces no crossover distortion to the signal, which can add upper-order odd harmonics that are musically dissonant in nature. With the RNDI-8, the majority of harmonic content is a pleasing combination of 2nd order (octave) and 3rd order (fifth above octave). These musically relevant harmonics, present in subtle amounts, enhance the richness of the original signal and provide a distinctly musical response. Furthermore, the discrete aspect of the RNDI-8's design means there are no ICs or digital components to potentially cause negative effects on the tone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGiant Headroom, Wide Bandwidth\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RNDI-8 has a uniquely wide bandwidth with a frequency response stretching from below 5Hz all the way past 90kHz. However, measurements are only part of the equation: couple this extended bandwidth with the output transformer's harmonic enhancement and a thunderous low-end emerges, adding an unparalleled feeling of depth. All this happens without compromising any of the midrange richness or top-end sparkle of the source.\u003c\/p\u003e\n\u003cp\u003eThe RNDI's uniquely high input headroom of +20.5 dBu is capable of handling not only instruments, but sources such as synths, keyboards, drum machines and even pre-recorded material. And with the addition of a -10dB pad, that number soars to +30.5dBu - allowing the RNDI-8 to inject that coveted Rupert Neve Designs tone into a wide variety of sources.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo Distinct Ground Lift Options\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMost direct interfaces include a ground lift switch at the output, and the RNDI-8 includes this standard DI 'lifting' option via eight individual 'Pin 1 Isolate' switches on the rear panel. Engaging this button will usually eliminate common sources of hum in the signal path.\u003c\/p\u003e\n\u003cp\u003eHowever, the RNDI-8 also includes eight ground lift buttons on the front panel which separate each channel's circuit ground from the chassis ground, providing another helpful option to detect and eliminate unwanted ground hum.\u003c\/p\u003e\n\u003ch2\u003eFRONT PANEL\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN\u003c\/strong\u003e\u003cbr\u003eHi-Z unbalanced input. ZIN = 2.2MΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHRU\u003c\/strong\u003e\u003cbr\u003eParallel 1\/4\" jack that allows the user to pass the input signal directly to an amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e48V\u003c\/strong\u003e\u003cbr\u003eIndicates when +48VDC phantom power is active on the channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND LIFT\u003c\/strong\u003e\u003cbr\u003eIsolates each channel ground from the chassis ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-10dB PAD\u003c\/strong\u003e\u003cbr\u003eAttenuates the input signal by -10dB (1\/4\" THRU unaffected).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eREAR PANEL\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOUTPUT\u003c\/strong\u003e\u003cbr\u003eXLR DI output utilizing custom Rupert Neve Designs transformer. ZOUT \u0026lt; 40Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePIN 1 ISOLATE\u003c\/strong\u003e\u003cbr\u003eIsolates XLR Pin 1 output from circuit ground.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroundbreaking Direct Tone\u003c\/strong\u003e\u003cbr\u003eWhen class-A, discrete input stages meet Rupert's custom output transformers, magic happens. The RNDI-8 contains the unique components and design knowledge that make it worthy of the Rupert Neve name.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHuge Headroom\u003c\/strong\u003e\u003cbr\u003eCapable of handling not only instruments, but sources such as synths, keyboards, drum machines and even pre-recorded material. And with the addition of a -10dB pad, the input headroom soars to +30.5dBu - allowing the RNDI-8 to inject that coveted Rupert Neve Designs tone into a wide variety of sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Solid Steel Frame\u003c\/strong\u003e\u003cbr\u003eThe rugged steel 1U chassis features an industrial-grade powder coating and is built to withstand the severe stresses of life on the road. The included bolt-on rack ears are reversible for multiple mounting options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse With a Variety of Sources\u003c\/strong\u003e\u003cbr\u003eThe RNDI-8 has immensely consistent performance across a wide variety of sources due to its 2.2M Ohm discrete FET input stages and high headroom. The RNDI-8 can be used with confidence on guitars, synths, basses, acoustic instruments, keyboards \u0026amp; drum machines. And with the -10dB PAD the input headroom increases even further, providing an easy way to inject the pleasing harmonic content of the RNDI into literally any source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Longer Lines\u003c\/strong\u003e\u003cbr\u003eThe low impedance transformer-coupled outputs - below 40 ohms - are capable of driving long lines while maintaining exceptional high frequency performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" THRU Outputs\u003c\/strong\u003e\u003cbr\u003eThe THRU outputs can be used to feed amplifier inputs for reinforcement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Lift Options\u003c\/strong\u003e\u003cbr\u003ePin 1 Isolate switches are provided on the rear panel to help fix any problematic grounding, as well as Ground Lift switches on the front panel to isolate each channel's circuit ground from chassis ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhantom Powered\u003c\/strong\u003e\u003cbr\u003eEach of the RNDI-8's eight channels is powered by standard 48V phantom power. 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