Heritage Audio HA73EQX2 ELITE

2-channel Mic Preamp/3-band EQ with 80dB of Gain, 20dB Pad, Frequency-selectable Highpass Filter, DI Input, and Carnhill Transformers

Built to the same specifications as the acclaimed ´73JR, ´73EQJR and DMA73 models

• Industry-standard Carnhill transformers, handwound in St Ives, England
• 80dB, fully discrete 3-stage Class A dual-channel mic preamp
• Line input on separate XLR for adding girth and warmth to prerecorded tracks
• 20dB Pad on mic input to avoid overloading the input transformer when desired
• LOZ, switches the input impedance of the mic transformer from 200 to 50 ohms
• Ultra-high-impedance, JFET-based DI
• Fully discrete, 3-band equalizer with vintage-spec inductors
• HF shelf at 12kHz
• Mid-band selectable between 6 different frequencies and Off
• LF shelf selectable between 4 different frequencies and Off
• Inductor-based Highpass filter, selectable between 4 different frequencies and OFF
• Mil-spec construction; 1RU chassis with RAF-gray faceplate
• External universal power supply for worldwide use

The HA73EQX2 Elite employs 3 correct vintage type “Vinkor“pot core inductors so the eq curves are virtually indistinguishable from the handmade equalizers in the HA line. Customers can expect the same sonic quality and feel they have come to appreciate from Heritage Audio.

The HA73EQX2 preamp section features gain, output trim, -20db pad, polarity reverse, a high pass filter, and +48v phantom power. The EQ section features a high shelving EQ, midrange EQ, low shelving EQ, a variable high pass filter, and EQ Bypass. It comes housed in a rugged 1RU British steel and aluminum chassis and utilizes an external power supply for low noise operation. The preamp section features gain, output trim, -20db pad, polarity reverse, a high pass filter, and +48v phantom power. The HA73EQX2, EQ section features a high shelving EQ, midrange EQ, low shelving EQ, a variable high pass filter, and EQ Bypass. It comes housed in a rugged 1RU British steel and aluminum chassis and utilizes an external power supply for low noise operation.

The mother of all preamps

The Heritage Audio HA73EQ ELITE 2-channel preamp/EQ packs your rack with a potent dose of vintage vibe. It's based on the iconic 1073, amplifying any microphone or instrument with vibrant clarity and punch. Drive the input harder to get rich, saturated sound like you would on a vintage console. With 80dB of gain, you've got a preamp that's ready to bring out the best in any microphone — condenser, dynamic, or ribbon. Trust us: it's really difficult to make this thing sound bad!

The holy grail of EQ

The EQ section of the HA73EQ ELITE adheres to the classic 1073 inductor-based circuit topology. The vintage 1073 is the holy grail of EQ, and the Heritage Audio 73EQ JR nails its sonics and behavior (complete with its fabled harmonic distortion). It's a three-band affair, with ±16dB of fixed HF shelving at 12kHz; ±18dB of fixed-Q midband peaking with selectable center frequencies at 360Hz, 700Hz, 1.6kHz, 3.2kHz, 4.8kHz, and 7.2kHz; and ±16dB of LF shelving, selectable at 35Hz, 60Hz, 110Hz, and 220Hz. A highpass filter, selectable at 50Hz, 80Hz, 160Hz, and 300Hz, lets you trim your signals of unwanted low end. If you've never worked with a 1073-style EQ before, all we can say is: you're in for a serious treat.

Add rich transformer saturation to any source

The Heritage Audio HA73EQ has Carnhill input and output transformers, ready to add warmth, girth, and authority to any sound source — mic, line, or even DI instruments. The DI circuit is ahead of the mic input transformer, perfect for adding some hair to DI bass signals on the way in. The HA73EQ has separate input and output gain controls, so you can crank the input to get more transformer color, without overloading the output stage.