Rolls Bellari VP549 RIAA Phono Pre-Amp

Phonograph Preamplifier with RIAA EQ

The Bellari VP549 phono pre has excellent true sound resolution. It's tone center is right in the middle of the music. It performs very well on the extremes, and never looses its solid performance in the meat of the music. Has a well rounded sound when needed, but has a very surprising shimmer when called on. The VP549 is bold, yet has a very surprising attack that will take your rig to the next level. Hundreds of hours went in to listening and improving the design. All Bellari products are hand built in Salt Lake City, Utah by people who care about high quality music. No surface mount parts are ever used at Bellari.

The RIAA equalization curve was intended to operate as the global industry standard for records since 1954. However, it is almost impossible to say when the change actually took place.

RIAA equalization is a form of pre-emphasis on recording and de-emphasis on playback. A recording is made with the low frequencies reduced and the high frequencies boosted, and on playback the opposite occurs. The net result is a flat frequency response, but with attenuation of high frequency noise such as hiss and clicks that arise from the recording medium. Reducing the low frequencies also limits the excursions the cutter needs to make when cutting a groove. Groove width is thus reduced, allowing more grooves to fit into a given surface area, permitting longer recording times. This also reduces physical stresses on the stylus which might otherwise cause distortion or groove damage during playback.

Features:

• 20Hz Rumble Filter
• Cartridge load capacitance @ 120 pF, 220 pF, & 330 pF
• Trim/Gain Knob
• 1/8" Headphone/Line Output
• Stereo RCA Outputs

Specifications:

• I/ O Connectors: RCA, 1/8" TRS Stereo
• Input Sensitivity: 30 dB gain @ 1kHz, 47k ohms
• Input Impedance: 47k ohms
• Output Impedance: 32 ohms Headphone, 470 ohms RCA
• Frequency Response: 14Hz to 23kHz
• Max Output Level: >10dB @ 1kHz at .1% dist.
• Equalization: RIAA +/- 1 dB, 20Hz to 20kHz
• Rumble Filter: 20Hz
• THD: .02% @ 1KHz
• S/N Ratio: >94 dB unweighted
• PWR: 15 VDC
• Size: 5.5"w x 3.5"d x 1.25"h
• Weight: .8 lbs
• Indicator: 1 Power LED