JDK AUDIO R20 – Channel Mic Preamp – Rackmount

2-channel Mic/Instrument Preamp with 54dB of Gain, Switchable Phantom Power, VU Meters, 20dB Mic Pad, and 10dB Instrument Pad

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Descripción

The JDK Audio R20 2-channel microphone and instrument preamp makes a solid, great-sounding front end to your recording setup. Take one look at the R20 and you’ll know it’s all business; the vintage-style front panel is equipped with analog VU meters, simple gain knobs, and toggles for phase, pad, mic/line, and phantom power functions. Each of the two preamps gives you 54dB of gain, while low-noise circuitry makes this preamp suitable for even the most demanding modern studio environments. Equally useful for mics and instruments, the R20 gives you bulletproof performance!

JDK Audio R20 2-channel Mic/Instrument Preamp at a Glance:
Legendary build quality in an original preamp design
Elegantly simple panel layout
What is JDK Audio?

Legendary build quality in an original preamp design
A product of API’s know-how combined with a great new design, the R20 gives you a great blend of classic performance and modern functionality. The R20 provides two channels of premium analog microphone pre-amplification designed to provide a low noise, solid front end for all audio applications. Meticulously detailed and solidly constructed, the R20 features custom analog VU meters and hands-on analog control of the gain level. Individual toggle switches control the selection of 48v, polarity, pad and a mic/instrument switch.

Elegantly simple panel layout
The R20 sounds fantastic, and it’s built to last. This JDK Audio product features an easy-to-navigate front panel that hearkens back to the great vintage designs; its uncluttered layout of knobs, toggles, indicators, VU meters, and input jacks give you the instant access and functionality you need. Form follows function, and the result is great performance and austere good looks.

What is JDK Audio?
API developed JDK Audio to design and build new products with new approaches, taking advantage of new technologies. This gives JDK Audio the ability to create premium audio gear from the ground up, with the legacy of API behind it. These products are built with long-term use in mind, so you can put them in your rack with confidence. And, most importantly, they sound great!

Features:
Dual Mic Preamplifiers with 54dB of gain
Custom analog VU meters for monitoring output level
Front panel, high-impedance instrument input with 45dB of gain
Peak indicator
Pad switch attenuates the microphone signal by 20dB, or the instrument signal by 10dB
Switchable 48v Phantom power
Low distortion, low noise circuitry
Fully balanced output, both 1/4″ and XLR
Inputs: Balanced XLR Mic jack (rear); Unbalanced 1/4″ Instrument jack (front)
Outputs: Balanced XLR and 1/4″ parallel jacks

Microphone Input
Max Gain: +55db (no pad), +36db (w/pad)
Min Gain: +9db (no pad), -10db (w/pad)
Pot Gain Range: 46db
Pad: 20db
Input Impedance: 6.8K Ohms
Bandwidth: +/- 0.5db, 20Hz – 50kHz
THD+N @ 1kHz, +4dbu: 0.013%
Maximum Level: +20dbu
Signal-to-Noise Ratio: -90db

Instrument Input
Max Gain: +31db (no pad), +21db (w/pad)
Min Gain: +10db (no pad), 0db (w/pad)
Pot Gain Range: 21db
Pad: 10db
Input Impedance: 500K Ohms
Bandwidth:
+/- 0.5db, 20Hz – 20kHz
THD+N @ 1kHz, +4dbu: 0.002%
Maximum Level: +20dbu
Signal-to-Noise Ratio: -80db

Dimensions and Weight
Dimensions: 2U EIA 19″ Rack; H/W/D: 3.5″ x 19″ x 10″
Weight: 12 lbs.