SKU: 28078950819

Warm Audio WA-12 MKII Single-Channel Preamplifier (Black)

Sale price$314.55 Regular price$349.50
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

Warm Audio WA-12 MKII Single-Channel Preamplifier (Black)Handle all of your single channel audio recording needs with the black Warm Audio WA12 MkII, a preampliflier for professionals on a budget. This is a discrete, dual transformer, high voltage mic pre that offers high headroom, a low noise floor, and sonics designed to impart a larger than life quality. Based around an X731 opamp derived from the Melcor 1731, the pre offers a sound that can be warm or clean, saturated or transparent, depending on how

Handle all of your single-channel audio recording needs with the black Warm Audio WA12 MkII, a preampliflier for professionals on a budget. This is a discrete, dual-transformer, high voltage mic pre that offers high headroom, a low noise floor, and sonics designed to impart a larger-than-life quality.

Based around an X731 opamp derived from the Melcor 1731, the pre offers a sound that can be warm or clean, saturated or transparent, depending on how hard you drive it. Drive it softly or hard, it won't change the essential sonorous quality of the unit.

It's also customizable for the DIY crowd: Because the unit was designed around the X731 opamp, the pre can accept any discrete opamp on the market that conforms to the 16V, 2520 pinout standard. In addition to the opamps, the WA12 MkII employs CineMag USA transformers, as well as other components that allow it to compete with units far more costly.

This preamp offers XLR and 1/4" connections for mic level, line level, or Hi-Z instruments. You'll also have your choice of XLR or 1/4" TRS outputs. A pad switch is on hand, as are a polarity switch and a button to supply 48V phantom power to condenser mics. A tone control lets you change the impedance from 600 to 150 ohms, which will have an effect on the sound.

Key Features at a Glance

  • Utilizes premium grade input and output USA CineMag transformers
  • 71 dB of gain, fully discrete signal path
  • Can be replaced with other 6-pin 2520-foot print opamps for varying tone/flavor
  • Tone button switches the input impedance from 600 ohms to 150 ohms, changing the tone of both the microphone and Hi-Z inputs
  • 2-megohm Hi-Z input on front panel, sends instrument signal through entire circuit including both Cinemag transformers and the discrete opamp
  • Suitable for guitars, bass, keyboards, and other instruments that have a 1/4" output jack
  • Output attenuation control (after the CineMag output transformer) allows for driving the preamp and transformers into saturation
  • LED meter gain indication
  • External power plug
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 28078950819

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4.7 ★★★★★
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LC
Houston, US
★★★★★ 3
Our dog loves it but it wasn’t durable enough to last
Color: Dogwood Jack, Size: Large, Color: Dogwood Jack, Size: Large
Our lab took to it as soon as we gave it to her. Perfect size for our 80 lb yellow lab. However, now that it’s in about 10 days, she’s able to break off chunks from this bone that are dime size or larger, and we have to throw it away
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
V
Verified Purchase
Valentine's
Omaha, US
★★★★★ 5
My Dogs Love Them!
Color: Dogwood & Calming, Size: Medium
My dogs love these. I have Corgis and a Border Collie. They are aggressive at chewing. These last well and my dogs love them. I've purchased these many times!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
T
Verified Purchase
terlynn4
San Leandro, US
★★★★★ 5
Long lasting and safer alternative to sticks
Color: Dogwood & Calming, Size: Medium
These are great, very durable, and have lasted a very long time. Much safer for my dogs than the random sticks they find in the yard. They do get shorter with chewing eventually, but they don't break off in little chunks like I've seen with some nylon chews, and they don't splinter like wood. Medium size works well for both my 16 lb Cavalier and my 60 lb Pyrenees/Golden mix. They're both moderate-to-aggressive chewers, though size obviously affects how much damage they can do. I wish you could buy the hemp chew separately because that one is very much a favorite in my house, so after 2 years and 2 purchases, I have barely any left of the remaining hemp chew, but still 2 of the dogwood chews that neither dog is as interested in anymore. I'd love to buy a couple more of just the hemp one.
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Reviewed in the United States on April 30, 2026
S
Verified Purchase
Shannon Brace
Lowell, US
★★★★★ 5
Your dog will thank you.
Color: Dogwood & Fresh Breath, Size: Large
My dogs loves to chew on these. They make a small mess but not as bad as other chews. They are food for keeping teeth clean.
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Reviewed in the United States on May 31, 2026
A
Verified Purchase
Anna
Omaha, US
★★★★★ 5
Nice chew toy
Color: Dogwood Mushroom, Size: Medium, Color: Dogwood Mushroom, Size: Medium
Super durable and puppy loves it. It was a bit hard for her at first but now at 5 months it’s one of her favorite things to gnaw on! It is heavy for the size but seems to be great quality and has given many hours of chew time with minimal wear.
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Reviewed in the United States on March 12, 2026

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