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When Warm Audio decided to release the Warm Audio WA73-EQ Dual Channel Mic Pre/EQ it was imperative that it met vintage expectation in both design and performance. The tone and sweet character that vintage '73-style mic preamps impart is so unique and familiar, that Warm Audio had only the pure desire to release sonically accurate reproductions. After years of R&D, careful reverse-engineering, and countless hours of auditioning, the WA73-EQ was born!
If there’s one style of preamp that professional engineers would unanimously agree has defined the tone of pop/rock records for decades, it would most definitely be the venerable '73-style of mic pre. '73-style preamps have been massively used in recording and live applications for many years and are still considered to be the “Holy Grail” of preamp choices today. The Warm Audio “WA73 Family” consists of single and dual channel '73-style preamps (with & w/out EQ), that each pay careful homage to British audio history.
The WA73-EQ is a “Desert Island” boutique preamp, but it can also be classified as a studio and live work-horse. Classic '73-style preamps are known for being versatile tools that work with all kinds of microphones from Condenser, to Dynamic, to Ribbon. The WA73-EQ equally shines on all types of microphones and sources including; vocals, acoustic/electric guitars, bass, drums, percussion, orchestras, keyboards, and even as a tone shaping tool to run partial or complete mixes through. With 80 dB of gain and a fully discrete Carnhill Transformer balanced signal path, there’s no recording, mixing or engineering task that the WA73-EQ can’t handle.
Enthusiasts unequivocally get excited about the components used in classic '73-style British preamps. The signal transformers are a common topic of conversation. Vintage units used various versions of transformers throughout the years, but the most coveted were the earliest versions. These are regarded as the most desirable choice due to their fluid and forgiving nature. They saturate sweetly when pushed, and have been known to make engineers cry when they hear how beautiful their mixes sound through them!
Warm Audio worked closely with Carnhill Transformers of Cambridgeshire, UK, to design faithful reproductions of these most coveted, early version transformers.
An important part of classic British tone not often discussed are the different styles of capacitors and output transistor used in '73-style circuits. To maintain integrity to early British designs, Warm used tantalum and polystyrene capacitors in the signal path and an output transistor choice that is much smoother in the high gain settings than what is typically found in modern '73-style preamps.
A great sounding '73-style circuit should be just as reliable as it is great sounding. The complex dual concentric switch potentiometers in the EQ sections of the WA73-EQ are made in the UK by Blore Edwards who manufacture military spec switches and potentiometers. The use of Blore-Edwards components is no small inclusion for a '73-style preamp-eq in this price range.
Classic '73-style preamps were often hand-wired and so is the WA73-EQ! Guru’s claim that a portion of the sought after classic British tone can be attributed to the hand-wired nature of the build. The WA73-EQ is hand-wired and hand assembled, including the pcb components that are all populated by hand.
|Tube or Solid State||Solid State|
|Input Connectors||1/4-inch TRS, Analog XLR|
|Output Connectors||1/4-inch TRS, Analog XLR|
It does the job, but there is no "wow" factor. It sounds marginally better than the UAD plugins, but not worth the extra cost if you already own the UAD plugins. You're better off ponying up a few hundred more dollars and get a nicer 1073, whether in a 500 series rack or as a standalone. Even without an EQ it'll be worth it.
I purchased this unit and used Vintage King's 30 day return policy to swap it out for something a little pricier. It was actually perfect - I got to try this out and record with it for 30 days to see what I thought, and in that time I saved a little more money to be able to exchange and upgrade to a better unit. If I liked it I would have kept it and saved the cash but in the end I decided to try something else.
After receiving the other unit I got that wow-factor I was looking for.
It’s been an awesome pre! Must have in your studio!
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