Warm Audio WA73-EQ with the Revive Audio mod. Used but in good condition, and comes with IEC cable. Don't hesitate to reach out with any questions.

Modification description from Revive:

Modification Services for Warm Audio WA73-EQ

$365

On the WA73EQ channel strip we offer both a Full Circuit path upgrade of all transistors in both the preamp and EQ, power supply modification, replacement of all of the electrolytic capacitors and a number of other modifications to increase performance.

We get a lot more performance for the circuit both in how thick it sounds as well as how much fidelity and headroom.

We are offering the most comprehensive and cumulative modifications on these available on the market.

We all know these preamps pack a good price to performance ratio, but lack a lot of the audio Mojo compared to an original 1073.

This is where we come in with over 20 years of audio circuit experience pushing this design to the top of its game with engineering techniques only found at Revive Audio!

This is a good design that has been replicated many times over, but just never seems to get there with every new companies incarnation.

Most of this is due to the quality of components and the rest is due to the lack of experience in the audio lab where musicians do their work.

They toss in the idea of handwiring, which these clearly are not, except that humans plug in the steel headers the machines assembled, but use better parts than other versions we have seen.

Stock they sound pretty good but dirty to the point where the Audio sounds subdued by the noise and a bit midrangy and harsh where it counts.

We perform an number of modifications on these in order to obtain the results we demand in order to meet our Price-to-Performance ratio, which is:

Better bandwidth, higher headroom, lower distortion and a less harsh pushed sound.

Fidelity is also increased by a considerable amount.

The character smoothes out a lot after the modifications and the noise floor is lowered to a point where the audio is just right and a lot closer to the original Neve Design!

About the Modifications:

• What we do to these little boxes is essentially gut the insides.
• We pull all of the transistors out and replace them with Gain matched, high HFE transistors for better bandwidth and lower noise to more closely resemble the original Neve design.
• We then pull all of the capacitors out the unit and replace them with long life, audio grade Panasonic capacitors for even lower noise and better musicality.
• Values are adjusted in the entire design for optimal audio performance.
• Finally we perform a power supply modifications for longer life, better current delivery and lower noise.
• You walk away with a wonderful sounding preamp with boutique modifications and top tier sound.

Retail listing from Sweetwater:

Warm Audio WA73-EQ Microphone Preamp & EQ

$895.09

The legendary 1073 wrote the book on characterful mic preamplification and EQ. These venerable circuits helped define the punchy sound of '70s rock — and countless recordings and live concerts ever since. Today, this coveted tone can be yours for a song, with the Warm Audio WA73-EQ mic/line/instrument preamp. In both design and performance, the WA73-EQ pays homage to the revered British console lineage that started it all. Throughout the audio industry, the 1073 is considered the holy grail of preamps and EQs, with a rich, sweet, and bold tonality that's ideal for making audacious statements with your music. After years of R&D, painstaking reverse-engineering, and countless hours of listening, Warm Audio captured the sonic essence of this classic perfectly in their boutique WA73-EQ. With 80dB of gain and a fully discrete transformer-balanced signal path, the sound is a revelation: harmonically rich bottom end, focused midrange, and slightly resonant highs.

Warm Audio WA73-EQ Mic/Line/Instrument Preamp and EQ Features:

• Handwired and hand-assembled, single-channel 1073-style preamp/EQ
• Fully discrete, Class A, transformer-balanced circuitry
• UK-made Carnhill Transformers
• 80dB of gain handles any type of microphone, including low-output ribbons
• Resistor-stepped rotary gain switch for easy recall
• Tone button changes input transformer impedance for mic optimization and tonal shaping
• Polarity switch
• 48V phantom power
• 4-position inductor-based highpass filter, selectable for Off, 50, 80, 160, or 300Hz
• Inductor-based 3-band equalization
• Low-band boost/cut at 35, 60, 110, or 220Hz
• Mid-band boost/cut at 360, 700, 1600, 3200, 4800, or 7200Hz
• High-band boost/cut at 10, 12, or 16kHz
• Additional high-band frequency EQ points added (compared to vintage 1073)
• XLR mic input
• Line-level TRS input
• TS Send/Receive insert jacks
• XLR and TRS line-level outputs
• DI instrument input
• Output level control
• LED level indication meter
• Rugged 19" rackmount chassis
• Ground lift switch
• Internal IEC 115V/230V power inlet