Heritage Audio DMA-73 Preamp

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Product Code: 1640
Heritage Audio DMA-73
$2,200.00
UPC:
639713908268
Availability: Usually Ships in 24 Hours

Heritage Audio DMA-73 Preamp

The Heritage Audio DMA-73 Preamp is a true dual 1073 style mic preamp in a 1 rack unit format. It has some added key features that will cover all the recording needs for engineers and musicians that don´t find the need to track with an EQ.

Employing only discrete circuitry and conventional components, the DMA73 is a faithful 3 stage all class A 1073 preamp. Styroflex and tantalum capacitors have been used throughout. No corners cut. A useful all discrete class A hi pass filter has been added, essential for recording everything with the exception of probably kick drum and and bass.

The Line mode allows for reamping of prerecorded tracks and it´s perfect for adding some class A color to lifeless recordings. The DI circuit is an all discrete class A JFET circuit ahead of the MIC transformer, so all the juice is there. Since its introduction in 2012, it has become a classic DI for bass.

Power handling has been addressed by means of an external linear power supply, which is included in the package.

Heritage Audio DMA-73 Preamp Features

  • 80dB Class A microphone preamplifier
  • 50dB Class A line preamplifier
  • Class A ultra-high-impedance J-Fet direct input
  • Individual Neutrik gold plated XLR connectors
  • 20dB mic input attenuation pad
  • 80Hz highpass filter
  • External linear PSU to avoid electromagnetic radiation into the audio transformers ( a.k.a. hum )
  • Carnhill Input and Output transformers

Heritage Audio DMA-73 Preamp Features 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
  • Noise: Less than -100dBm.
  • Power consumption: 88 mA per rail @+-16VDC.

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5
Nice Product

this is nice product

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