Heritage Audio launches their 1st rack preamp

Heritage Audio introduces the DMA 73 Class A mic dual channel preamplifier, which recreates the classic Neve 1073 preamp and DI.

Specifications:

80dB Class A Microphone preamplifier, Hi (min. 1200 Ohms) / Lo (min. 300 Ohms) selectable minimum input impedance, balanced and floating. High gain positions show a higher impedance, ideal for old ribbon mics
50dB Class A Line preamplifier, bridging input impedance, balanced and floating (bridging 10k Ohms)
All discrete Class A high Impedance J-Fet Direct Input on a Neutrik Jack. The DI circuit is ahead of the Mic Input transformer, so the transformer is on when in DI mode (> 2M Ohms, unbalanced)
Class A single ended, 2N3055 driven, high headroom B283 output stage
Individual Neutrik gold plated XLR connectors for microphone and line inputs
Gold Plated Neutrik XLR output
Pad: –20dB Mic input attenuation ahead of the input transformer to avoid overloading it
Hi-pass filter: Active all discrete Class A 3rd order Bessel, 80Hz Hi-Pass Filter.18dB/octave slope
Output control to allow overloading of the preamp
External linear PSU to avoid electromagnetic radiation into the audio transformers ( a.k.a. hum )
Carnhill Input and Output transformers
3 gain stage, genuine B283 gain card modular construction
Frequency response: 20Hz (0.3dB) – 20kHz (0.2dB)
Noise < –100dBm
Marconi style knobs and vintage style engraved push buttons