Heritage Audio DTT73

Heritage Audio DTT73 is a two-channel Class-A microphone preamplifier and DI, inspired by the Neve 1073, featuring up to 80dB gain, 20dB pad, with 2 x XLR (mic), 2 x XLR (line), 2 x 1/4" (DI input) analog inputs, 2 x XLR (main output), 2 x 1/4" (thru) analog outputs.

The portable, desktop DTT-73 microphone preamplifier is a dual mic preamp module with 80 dB of gain and 10 dB of line preamp in a wood and steel chassis, modeled after the vintage 1073 module designed by Rupert Neve. It's suitable for working with various types of microphones, including vintage ribbon mics. The front panel features input and output gain knobs, phantom power +24/48V switch, D.I., LOZ, Phase, High-Pass filter, Line Attenuation, PAD switches. When equipment is connected to the 1.4” DI port, the device automatically switches the module from MIC to DI mode.

The preamplifier delivers a classic Neve sound, equipped with a convenient carry handle. It's ideal for creating high-quality audio on stage, in the recording studio, as well as during outdoor performances.

Heritage Audio DTT73 Features

• Class-A microphone and line preamps with a desktop design
• High impedance JFET direct inputs with Thru jacks
• Individual gold-plated Neutrik XLR connectors
• 20 dB pads
• 80 Hz high-pass filters
• +24/48V phantom power
• Carnhill input and output transformers
• Built-in power supply for convenient portability
• Standard IEC power socket

Heritage Audio DTT73 Specifications

• Mic Input Impedance: High = minimum 1200 Ω; low = minimum 300 Ω. Higher gain positions progressively have higher impedances, optimal for low gain ribbon mics. Input is transformer balanced and floating.
• Line Input Impedance: 10 kΩ bridged, transformer balanced and floating.
• Output Impedance: Less than 75 Ω, transformer balanced and floating, for driving 600 Ω loads.
• DI Input Impedance: Greater than 2 MΩ, unbalanced.
• Maximum Output: Greater than +26.5 dBu into 600 Ω (factory terminated).
• THD: Less than 0.025% at 1 kHz, less than 0.05% at 100 Hz.
• Frequency Response: 20 Hz (+0.3 dB) to 20 kHz (-0.2 dB).
• Maximum Gain: Slightly greater than 80 dB.
• Power Supply: Built-in, noise-free power supply, accepting worldwide mains voltage from 100 V to 240 V.
• Dimensions (W x H x D): 275 mm x 135 mm x 240 mm
• Weight: 4.342 Kg.