Heritage Audio 6673

Heritage Audio 6673 is a microphone/instrument preamp and equalizer module based on the vintage 1066 and 1073 modules designed by Rupert Neve. The device is intended for installation in modular slots of sound consoles compatible with the 80 series. It is designed for sound engineers who want to get the classic Neve sound, but with more flexibility.

In addition to the external vintage design that will decorate your studio, the 6673 module provides the characteristic sound of the 70s. The device uses special polystyrene and film capacitors, as close as possible to the Siemens Styroflex and Mullard Mustard from the late 60s and early 70s, as well as hand-wound Carnhill input transformers. The device is completely hand-assembled.

The module is compatible with Heritage Audio FRAME 8 and RACK 2, as well as any other consoles or modules with similar mechanical and electrical protocols.

HA 6673 Features

• Input gain switch with 2 modes (MIC: 5 steps 20-80 dB, Line: -10 to 20 dB)
• High shelf (10, 12, 16 kHz)
• 1066 mid band (7.2, 3.6, 2.4, 1.2, 0.7 kHz)
• Expanded 1073 mid band (7.2, 4.8, 3.2, 1.6, 0.7, 0.36 kHz)
• Low shelf (20, 110, 60, 35 Hz)
• High pass filter (300, 169, 80, 50, Hz)
• 180° Phase flip switch
• Standard 80 Series module size

Heritage Audio 6673 Technical Specifications

• Class A microphone preamp with 80 dB of gain, plus a sweet-sounding 4-band EQ.
• Class A line-level amplifier with 10 dB of gain.
• The equalizer’s mid-bands cover nearly the entire audible frequency range.
• Low and high shelving EQs with Baxandall curves for smooth, natural-sounding response.
• High-pass filter, switchable between 50 Hz, 80 Hz, and 300 Hz.
• +48 V phantom power is supplied by your 80 Series chassis.
• Maximum output: Greater than +26 dBu into 600 Ω.
• 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.
• Noise: Less than -100 dBu.
• Power consumption: Less than 110 mA @ 24V DC.
• Dimensions (W x H x L): 45 mm x 224 mm x 304 mm.