The JDK Audio R20 is a dual channel, high quality microphone preamp, designed from the ground up by API's design team to offer a versatile high quality input for microphones.
Each channel features both a mic and an instrument input, with switched phantom power, phase, and pad. Metering is traditional analog VU.
The MP-R20 provides 2 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.
JDK Audio is an entirely new brand developed and engineered by API (Automated Processes, Inc.). And, while API's audio products are benchmarks of the recording world, we decided to embark on a product line that would allow us offer some new ideas and new tools to the audio community.
JDK Audio products feature robust design standards in solid, reliable package. The audio quality, the integrity of the components and the build construction all combine to provide years of great sounding analog audio performance - at a surprisingly affordable price.
Dual Mic Preamplifiers with 54 dB of gainCustom analog VU meters for monitoring output levelFront panel, high-impedance instrument input with 45 dB of gainPeak indicatorPad switch attenuates the microphone signal by 20 dB, or the instrument signal by 10 dBSwitchable 48v Phantom powerLow distortion, low noise circuitryFully balanced output, both 1/4" and XLR
Inputs: Balanced XLR Mic jack (rear), Un-Balanced 1/4" Instrument jack (front)
Outputs: Balanced XLR and 1/4" parallel jacks
Max Gain: +55db (no pad), +36db (w/pad)
Min Gain: +9db (no pad), -10db (w/pad)
Pot Gain Range: 46db
Input Impedance: 6.8K Ohms
Bandwidth: +/- 0.5db, 20Hz - 50kHz
THD+N @ 1kHz, +4dbu: 0.013%
Maximum Level: +20dbu
Signal-to-Noise Ratio: -90db
Max Gain: +31db (no pad), +21db (w/pad)
Min Gain: +10db (no pad), 0db (w/pad)
Pot Gain Range: 21db
Input Impedance: 500K Ohms
Bandwidth: +/- 0.5db, 20Hz - 20kHz
THD+N @ 1kHz, +4dbu: 0.002%
Maximum Level: +20dbu
Signal-to-Noise Ratio: -80db
Current: 65mA, 7.3VoltAmps
Dimensions: 2U EIA 19" Rack
Height: 3.5 Inches
Width: 19 Inches
Depth: 10 inches
Weight: 12 lbs
Manufacturer Part Number : R20