Earthworks 1021

With a similar design philosophy to their microphones the ZDT preamp series embody uncompromising clarity. The transient response, distortion rating and flat frequency response are almost unmatched at any price.

The 1021 also provides frequency response from 1Hz to 200kHz +0.5dB, a rise time of 0.27 microseconds and distortion of less than 1 part per million (0.0001%), eliminating all possibility of sonic degradation.

Features

Zero Distortion – less than one part per million
High output level +30dBu
Very low output impedance will drive long lines without interference or signal loss
True 48 volt phantom, polarity reverse & clip indicator
Separate XLR & 1/4” Phone (t-r-s) outputs, each with its own gain/level controls
1/4” phone connector output will drive balanced or unbalanced inputs
Full differential (balanced) from XLR in to XLR out – no internal conversion to single-ended
All discrete components; Class A amplification (no ICs in the signal path)
Greater transparency with minimum signal path and minimum features

Specifications

Preamp Type: Solid State

Number of Channels: 1

Frequency Response: 2Hz to 100kHz ±0.1dB, 1Hz to 200kHz ±0.5dB

Impulse Response: 1.4µs

Distortion: XLR out: less than 1ppm (0.0001%); 1/4” out: 0.001%

Input Noise: 1.6nVHz½ at 20dB gain; 0.6nV/Hz½ at 60dB gain

EIN: -132dBV at 20dB gain; -143dBV at 60dB gain

Slew Rate: 22V/µs

Output DC Offset: ±1 mV typical, servo balanced

Power Requirement: 120V AC (100V and 200-240V versions available)

Input: 1 XLR Female balanced transformerless

Input Impedance: 10KΩ phantom on, 100KΩ phantom off

Outputs:
1 XLR Male balanced transformerless (stepped)
1 ¼” TRS XLR Fem. balanced transformerless (variable)
Dimensions: Half rack space 1.75” x 8.75” x 10.375”
Weight: 4 lb. (1.8kg)

Filters

Outboard

Earthworks 1021 - Single Channel Preamp - Half-Rack