Heritage Audio DTT-73 Dual Tabletop Microphone Preamplifier

SKU: HADTT73 MFR: DTT73
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Key Features

  • Achieve pristine sound with this dual tabletop microphone preamplifier for studio-quality recordings.
  • Experience ultra-low noise performance, capturing every nuance of your audio with clarity and depth.
  • Shape your sound with a wide gain range, perfect for vocals, instruments, and diverse recording needs.
  • Enjoy versatile connectivity with XLR and 1/4" inputs, ideal for microphones, guitars, and more.
  • Trust in robust build quality, ensuring years of reliable performance in your home or professional studio.
  • Harness the power of phantom power for condenser microphones, unlocking a full range of sonic possibilities.
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Special Order?Estimated to Ship: 08/16/2025
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Heritage Audio DTT-73 Specifications

  • Channels

    2

  • Connectors

    2x 1/4" DI input jacks
    2x 1/4" DI thru jacks
    2x balanced 3-pin female gold-plated XLR microphone inputs
    2x balanced 3-pin female gold-plated XLR line inputs
    2x balanced 3-pin male gold-plated XLR outputs

  • Input Impedance

    Microphone
    HI: 1200Ohms minimum
    LO: 300Ohms minimum
    Line: 10 kOhms bridging, Carnhill transformer balanced and floating
    DI: Greater than 2 MOhms, unbalanced

  • Output Impedance

    Less than 75Ohms,
    Carnhill Transformer balanced and floating to drive a load of 600Ohms

  • Maximum Output

    Greater than +26dBm into 600Ohms

  • THD

    Less than 0.025% at 1,000Hz
    Less than 0.05% at 100Hz

  • Frequency Response

    20Hz (+0.3dB) to 20,000Hz (-0.2dB)

  • Maximum Gain

    Slightly greater than 80dB

  • Noise

    Less than -100dBm

  • Dimensions (H x W x D)

    20 x 9.5 x 30" / 508.00 x 241.30 x 762.00mm

  • Weight

    6.6lbs / 2.99kg

  • UPC Code

    799430206174

About Heritage Audio DTT-73

Standing for DUAL TABLETOP 73, it is in essence a reformatted DMA73.The DTT-73 brings a new flavor to the Heritage Audio line of outboard gear, widening the range of application to On Stage use, portable systems, hotel rooms, On Location recordings, etc. Now musicians are able to give 1073-driven line levels to FOH engineers, using the front panel DI inputs. While on the road they are able to record at the same studio quality level from hotel rooms, etc. Stage microphones can be brought up to line level without using long cable runs. These are just some of the possibilities.

Special care has been taken with the internal worldwide power supply and no noise has been introduced. New to the range of tabletop units is the implementation of DI THRU jacks for simultaneous use of instrument amplifiers. A ground lift switch prevents any ground loops introducing hum in the audio when using these. The combination of wood and RAF blue Gray steel makes the tabletop units aesthetically stand out in any professional recording environment and will bring your semi pro facility the touch of class you are looking for.

Heritage Audio DTT-73 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
  • DI THRU jack with ground lift switch for simultaneous hum free use of instrument amplifiers
  • 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
  • Internal no noise PSU, accepting worldwide voltages from 100v to 240v
  • Carnhill Input and Output transformers
  • 3 gain stage, genuine B283 gain card modular construction
  • Marconi style knobs and vintage style engraved push buttons

Product Documents

User Manual

Key Features

  • Achieve pristine sound with this dual tabletop microphone preamplifier for studio-quality recordings.
  • Experience ultra-low noise performance, capturing every nuance of your audio with clarity and depth.
  • Shape your sound with a wide gain range, perfect for vocals, instruments, and diverse recording needs.
  • Enjoy versatile connectivity with XLR and 1/4" inputs, ideal for microphones, guitars, and more.
  • Trust in robust build quality, ensuring years of reliable performance in your home or professional studio.
  • Harness the power of phantom power for condenser microphones, unlocking a full range of sonic possibilities.

What's in the box:

  • Heritage Audio DTT-73 Dual Tabletop Microphone Preamplifier
  • Heritage Audio 1 Year Parts & Labor Warranty