Earthworks 1022
2 channel Zero Distortion Technology Preamp

Earthworks 1022 Frequency Response -
2Hz to 100kHz ?0.1dB
1Hz to 200kHz ?0.5dB
(5dB to 50dB, Measured with 50 Ohm source)
 
Impulse response -  1% settling time - 1.4 ?s
square wave rise time - 0.27 ?s
THD -
 
 XLR stepped output - under 1ppm (0.0001 %)
over gain range of 15 to 50 dB, 100 Hz - 20 kHz.

Variable output - 0.02 % (@ max 8Vrms out)
over gain range of 15 to 50 dB, 100 Hz to 20 kHz.
 
Enoise (Input) -  1.6nV/Hz1/2 typical spectral density @ 20 dB gain;
.86nV/Hz1/2 @ 40dB gain
.6nV/Hz1/2 @ 60dB
EIN* -
 -132dBV @20 dB gain
-140dBV at 40 dB gain
-143 dBV @60dB gain.
(20Hz to 20kHz, A weighted)
Typical current noise spectral density @ input 1.5pA/Hz1/2
 
Slew rate -  22V/us
DC offset -  servo balanced to ?1 mV typical
Power requirement -  120 VAC (230V unit available)
standard IEC connector (supplied)
Internal 250mA 250V spare fuse included
Size -  1 rack space 1.75" X 19" X 10.375" (~11" over all)

Earthworks 1022 Front panel features:

Precision stepped gain switch from 5 to 60dB in 5dB steps
Variable gain control allows 20 dB of gain reduction from switch setting to separate output amplifiers
Clip indicator LED shows imminent overload condition (10 % below clipping) as well as clipping, Bipolar Detection
48 volt phantom power switch with LED indicator
Standby switch mutes the output while the microphone remains powered
Polarity reversal switch
Power on LED indicator

Earthworks 1022 Back Panel Connections:

XLR balanced transformerless input (pin 2 +)
XLR from stepped gain control, differential output (Pin 2 +)
1/4 inch TRS (tip +) from variable gain control, single ended output (tip +)