Warm Audio WA73-EQ 1073-Style Microphone Preamplifier and Equalizer

With custom Carnhill transformers, 80 dB of sweet gain, and that musical 3-band inductor EQ, this is Warm Audio's homage to the Holy Grail '73 mic preamp.

Overall User Ratings (based on 4 ratings)
  • Overall:
    5 out of 5 stars
  • Sound:
    5 out of 5 stars
  • Features:
    5 out of 5 stars
  • Ease of Use:
    5 out of 5 stars
  • Quality:
    5 out of 5 stars
  • Value:
    5 out of 5 stars
  • Manufacturer Support:
    5 out of 5 stars
  • The Wow Factor:
    5 out of 5 stars
Overall: 5 out of 5 stars
(4) (see rating details)
Submitted October 1, 2019 by Matt Byron in Carrboro, NC

"OH MY GOD AMAZING"

Overall: 5 out of 5 stars
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Verified Purchaser zZounds has verified that this reviewer purchased this specific product from us.
I've never had gear of this quality and it is worth the price increase compared to cheap stuff. Aside from the awesome build it sounds like a recording studio is the best way to describe it. I could play w the EQ for hours. Not enough good things to say about this unit. Stunning sound.

Musical Background:

full time producer

Musical Style:

alternative and pop
28 of 29 people (97%) people found this review helpful. Did you?
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Submitted June 30, 2023 by Christian Aguila in Fontana, CA

"Best Investment."

Overall: 5 out of 5 stars
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Verified Customer zZounds has verified that this reviewer made a purchase from us.
We always ask ourselves at the beginning “what is the first piece of gear we should buy?” I’m here to honestly tell that this absolutely it. This gave me that extra color and definition I was looking for contrast to what I already had available ITB. This preamp has become a staple in my recordings. Can’t wait for my next piece of Warm Audio Gear!! *sidenote: My HPF Knob stripped and I contacted them and Steve sent out a replacement free of charge. Customer service gets 10/10

Musical Background:

Regional Mexican
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Submitted June 12, 2018 by Tom McCormick in CLARK MILLS, NY

"Thick, Warm, and AWESOME"

Overall: 4.5 out of 5 stars
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Verified Customer zZounds has verified that this reviewer made a purchase from us.
I've been using the unit for about a week now primarily on high gain electric guitar and to say I'm impressed is an understatement. The bottom end is so rich and full without being muddy, really brings guitar tones to life. I thought my recordings were pretty solid before buying this unit, now I'm blown away. Great piece of gear at a great price!

Musical Background:

Professional Musician

Musical Style:

Hard Rock/Metal
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Submitted April 30, 2026 by a customer from live.com

"Great unit that does the job very well"

Overall: 5 out of 5 stars
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Verified Purchaser zZounds has verified that this reviewer purchased this specific product from us.
This is my second preamp after owning another Neve clone(golden age). The WARM has more stops on the EQ and also more options having the tone button as well as a high pass filter and the option to reamp. I felt like I had little something missing in my the other preamp which I don't sense anymore. I currently run an SE electronics condenser and Sm7b mostly through it, the latter being my main vocal mic. The preamp does wonders with it! I'm so pleased. This preamp is a very good value for the great price you can get it at.
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