Key Features
- Converts Balanced Line Level to Unbalanced
- Stereo Signal Path With Set & Forget Level Control
- Transformer Isolated to Eliminate Hum & Buzz
- Features Jensen Transformers for Optimal Signal Path
Description
Balanced +4dB to -10dB Unbalanced Passive Stereo Converter, Full Range
The Radial J-Iso and Pro-Iso are stereo line isolators designed to convert a professional +4dB line level balanced signal to an unbalanced -10dB consumer level device. This enables you to take the balanced output of a mixer and feed a consumer level recorder or audio input on a computer.
The passive design begins with 100% discrete components throughout. A set & forget level control lets you attenuate the input signal to prevent it from overloading the destination device. Output connections include a stereo pair of 1/4" connectors, a set of RCAs and a mini 3.5mm (1/8") for interfacing to a mini recorder or lap-top computer. Transformer isolation helps eliminate hum and buzz caused by ground loops while eliminating stray DC currents from flowing.
Construction begins with 14 gauge steel throughout utilizing Radial's unique bookend construction. This creates a protective zone around the connectors and controls for added durability. The steel construction also assists by shielding the transformers from outside magnetic fields. Inside, the J-Iso features an innovative I-beam skeletal insert that makes it virtually impossible to torque the PC board. This reduces potential stress which could cause premature solder joint failure.
Designed for full range applications, the J-Iso combines exceptional signal handling with the type of durability that has made Radial famous.
Two models are available:
J-Iso Part # R800-1025: The J-Iso employs a premium Jensen transformer for optimal signal transfer to minimize distortion and artefact. Full bandwidth performance makes the J-Iso ideal for music production.
Pro-Iso Part # R800-1150 The Pro-Iso employs a more cost effective transformer that focuses the energy in the voice range. This makes the Pro-Iso a great choice for sermons, news gathering and spoken voice.
Features:
- Converts balanced line level signals to unbalanced
- Stereo signal path with set & forget level control
- Transformer isolated to eliminate hum & buzz
- J-Iso features Jensen transformers for optimal signal path
Specifications:
- Specifications
- Audio circuit type:
J-Iso: Passive, transformer based
Pro-Iso: Passive, transformer based - Number of channels:
J-Iso: Stereo (dual mono)
Pro-Iso: Stereo (dual mono) - Frequency response:
J-Iso: 20Hz ~ 20KHz (+0dB/ -1.5dB)
Pro-Iso: 20Hz ~ 18KHz (+0dB/ -3dB) - Dynamic range:
J-Iso: 130dB
Pro-Iso: 130dB - Maximum input:
J-Iso: +20dBu @ 1kHz/1% THD+N
Pro-Iso: +20dBu @ 1kHz/1% THD+N - THD + Noise:
J-Iso: 0.001% @ 1kHz
Pro-Iso: 0.005% @ 1kHz - Phase deviation:
J-Iso: 0.5 @ 100Hz; 1 @ 20Hz
Pro-Iso: 1.5 @ 100Hz; 3 @ 20Hz - CMRR:
J-Iso: -58dB
Pro-Iso: -76dB - Input impedance:
J-Iso: 1.3k Ohms, unbalanced
Pro-Iso: 1.3k Ohms - Output impedance:
J-Iso: 520 Ohms, balanced
Pro-Iso: 1.9k Ohms - Features
- Transformer:
J-Iso: Jensen JT-11-YMPC
Pro-Iso: Radial transformer - Ground lift:
J-Iso: Disconnects XLR pin-1 at XLR input
Pro-Iso: Disconnects XLR pin-1 at XLR input - XLR configuration:
J-Iso: AES standard (pin-2 hot)
Pro-Iso: AES standard (pin-2 hot) - Connectors:Balanced XLR-F in; 1/4", RCA and 3.5mm TRS unbalanced outputs
- General
- Construction:
J-Iso: 14 gauge steel chassis
Pro-Iso: 14 gauge steel chassis - Finish:
J-Iso: Baked enamel
Pro-Iso: Baked enamel - Size:
J-Iso: 84 x 127 x 48mm (3.3" x 5.0" x 2")
Pro-Iso: 84 x 127 x 48mm (3.3" x 5.0" x 2") - Weight:
J-Iso: 0.70 kg (1.55 lbs)
Pro-Iso: 0.70 kg (1.55 lbs) - Shipping Size:
J-Iso: 102 x 76 x 165mm (4" x 3" x 6.5")
Pro-Iso: 102 x 76 x 165mm (4" x 3" x 6.5") - Shipping Weight:
J-Iso: .87 kg (1.92 lbs)
Pro-Iso: .87 kg (1.92 lbs) - Power:
J-Iso: Passive, no power required
Pro-Iso: Passive, no power required - Warranty:
J-Iso: Radial 3-year, transferable
Pro-Iso: Radial 3-year, transferable