Orangeburg, SC, United States
About this listing
Classic Neve 1073 recreation preamp / DI, stereo in a single rack space with external power supply included.Heritage Audio DMA73 Features 80dB Class A Microphone preamplifier, HI-LO 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. All discrete Class A Ultra High Impedance J-Fet Direct Input on a high quality Neutrik Jack. The DI circuit is ahead of the Mic Input transformer, so the transformer is on when in DI mode. Class A single ended, 2N3055 driven, high headroom 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. Marconi style knobs and vintage style engraved pushbuttons. Heritage Audio DMA73 Specifications Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is Carnhill transformer balanced and floating. Line input impedance: 10K Ohms bridging, Carnhill transformer balanced and floating. DI input impedance: Greater than 2 Megohms, unbalanced. Output impedance: Less than 75 Ohms, Carnhill transformer balanced and floating, to drive a load of 600 ohms (factory terminated). Maximum output: Greater than +26dBm into 600 ohms. THD: Less than 0.025% at 1 Khz, less than 0.05% at 100Hz. Frequency response: 20Hz ( +0.3dB ) to 20Khz (-0.2dB) Maximum gain: Slightly greater than 80dB
Price$2,499
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