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User Manual for Heritage Audio DMA-73 Dual Microphone Preamplifier Click to enlarge the picture
Contents of the user manual for the Heritage Audio DMA-73 Dual Microphone Preamplifier
- Product category: Microphone Preamps Heritage Audio
- Brand: Heritage Audio
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Heritage Audio Microphone Preamps
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User manual for the Heritage Audio DMA-73 Dual Microphone Preamplifier contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Heritage Audio product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Heritage Audio user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Heritage Audio product will considerably shorten its lifespan!
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Product description The Heritage Audio DMA-73 Dual Microphone Preamplifier is a 1RU 19" rack-compatible dual 80 dB microphone and 10 dB line recording module based on the vintage 1073 preamplifier designed by Rupert Neve. The remake is intended for recording engineers who want the classic Neve sound in a standard studio rack format, but do not need the equalizer functionality of the original 1073.
The preamplifier supports selectable HI-LO minimum balanced and floating input impedances that accommodate a range of microphone types including vintage ribbons. A +48V phantom power button is included on both channels, as well as an input level knob for adjusting to your source. You can also switch the module into line mode to re-amplify prerecorded tracks and add color to a mix. Plugging in a mono 1/4" input into the DI port on the front of the unit automatically switches the module from MIC to DI mode. A selectable discrete component Class A 3rd order 80 Hz high-pass filter with an 18 dB per octave slope has been added for recording sources without the effects of low frequency coloration. An output control knob is included to prevent overloading the preamplifier.
The unit is powered by an external linear power supply to reduce the effects of electromagnetic interference on the audio transformers. The unit features gold-plated Neutrik XLR input and output connectors. To achieve the classic feel of the original 1073, the unit is constructed with Marconi-style knobs and vintage engraved pushbuttons for the DI, low impedance, line, pad, phase, and high-pass functions. UPC: 639713908268 In the Box Heritage Audio DMA-73 Dual Microphone Preamplifier Limited 1-Year Warranty Table of Contents
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Technical parametersHeritage Audio DMA-73 Specs | Channels | 2 | | Connectors | 2 x 1/4" DI input jacks
2 x balanced 3-Pin female gold-plated XLR microphone inputs
2 x balanced 3-Pin female gold-plated XLR line inputs
2 x balanced 3-Pin male gold-plated XLR outputs | | Input Impedance | Microphone
HI: 1200 Ω minimum
LO: 300 Ω minimum
Line: 10 kΩ bridging, Carnhill transformer balanced and floating
DI: Greater than 2 MΩ | | Output Impedance | Less than 75 Ω,
Transformer balanced and floating to drive a load of 600 Ω | | Maximum Output | Greater than +26 dBm into 600 Ω | | THD | Less than 0.025% at 1,000 Hz
Less than 0.05% at 100 Hz | | Frequency Response | 20 Hz (+0.3 dB) to 20,000 Hz (-0.2 dB) | | Maximum Gain | Slightly greater than 80 dB | | Noise | Less than -100 dBm | | Power Consumption | Less than 200 mA at 24 VDC | | Dimensions (W x D x H) | 19.1 x 12.2 x 1.77" (48.5 x 31 x 4.5 cm) | | Weight | 7.3 lb (3.3 kg) | | | | Package Weight | 14.35 lb | | Box Dimensions (LxWxH) | 24.0 x 18.5 x 6.6" |
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