1022
2-Channel Zero Distortion Technology™ Preamplifier
The ZDT Zero Distortion Preamplifier™ series is based on discrete circuitry designed by David Blackmer, establishing a new standard of sonic excellence in electronics. This exacting new standard 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. These preamps are so fast, so clean and so transparent that you don’t even know they are there. It is like plugging your microphone into a “piece of wire with gain”. You will hear clarity and detail with the ZDT preamps that is not available in any other preamp at any price.
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
From $2199
Preamp Type: Solid State
Number of Channels: 2
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: 2 XLR Female balanced transformerless
Input Impedance: 10KΩ phantom on, 100KΩ phantom off
Outputs: 2 XLR Male balanced transformerless (stepped)
2 ¼” TRS XLR Fem. balanced transformerless (variable)
Dimensions: 1 rack space 1.75” x 19” x 10.375”
Weight: 6 lb. (2.7kg)
Reviews
Recording
“If you’re looking for one, two, or four channels of absolutely uncompromising preamplification that lets your sources come through with only your mics and other processors to flavor them, the ZDT preamps should definitely be on your short list.”
ProSoundNetwork
“It is about as transparent as anything I have heard. The sound is completely uncolored and noise is just about as low as it gets.”
The ZDT preamps are very transparent, like the preamps are not even in the chain, and let the mic do the work it is supposed to, and translates it beautifully.
