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Warm Audio WA-412 4-channel Microphone Preamp , $1,349.00 - Add to Cart Skip to Product Information

Warm Audio WA-412 4-channel Microphone Preamp

4-channel Mic Preamp/DI with Fully Discrete, Transformer-coupled, Through-hole Component Topology; 20dB Pad, Phantom Power, LED Metering, and Output Trim Per Channel
Item ID: WA412
Warm Audio WA-412 4-channel Microphone Preamp
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$ 1,349 .00
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Warm Audio WA-412 4-channel Microphone Preamp
In Stock!

Only 9 left in stock! Order Soon!
$50 Price Drop!
$ 1,349 .00
Was:

Classic Console Preamp Sound

This article was Written By

Our Product Research Team

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The Warm Audio WA-412 delivers the vintage magic of a venerable American console preamp. With its fat, punchy bass and sweet, open high end, the 4-channel WA-412 preamp/DI packs the classic sound of rock 'n' roll into a sleek 1RU chassis. Warm Audio gear has famously upset the pro audio price/performance ratio, and the WA-412 carries on the tradition with its discrete, transformer-coupled through-hole component topology. Stellar performance, top-shelf parts, and amazing value: that's the Warm formula - and the WA-412 nails it. Warm Audio WA-412 4-channel Microphone Preamp at a Glance:

  • What can the WA-412 do for you?
  • Quality components make the Warm difference

What can the WA-412 do for you? Need to record dynamic, impactful drums? With a pair of WA-412s, you could track a full multi-miked drum kit. Pack your rack with four of them, and you've got a console's worth of killer preamps to track the entire band. The WA-412 supplies all the features you need. Warm Audio started with their take on a classic schematic. Then they added an output trim to each channel for exacting control and creative gain staging. Another modern innovation is the Tone switch on each channel, which switches transformer input impedance to give you the choice between punchy vintage console tone and a more neutral, open sound. Quality components make the Warm difference You know if your front end's not right, the rest of your signal chain doesn't matter. Most pro engineers have laid down heavy cash for a top-quality mic preamp; it was simply the cost of entry for world-class sonics. Now, at Sweetwater, we're all about performance and value, and Warm Audio has upended that equation. The company doesn't cut corners on components, but they do order parts and build in quantity, which keeps costs down and delivers amazing value. Each channel of the WA-412 features a fully discrete, socketed op-amp (yes - it's swappable with other op-amps) with high headroom and low distortion - a defining sonic characteristic of these vintage console pres. Custom vintage-wound Altran USA transformers also contribute to the authoritative sound of the WA-412. Warm Audio WA-412 4-channel Microphone Preamp/DI Features:

  • Based on a classic American console preamp design known for its punchy, bold sonics
  • Fully discrete, transformer-coupled, through-hole component topology
  • Custom-wound, premium Altran USA input and output transformers on each channel
  • Discrete X520 socketed op-amp on every channel
    • May be user-swapped with most 6-pin, discrete op-amps
  • 65db of gain; 20dB pad (pads both mic and instrument inputs)
  • Inputs: microphone (XLR), active instrument direct-injection (1/4")
  • Outputs: transformer-balanced XLR and TRS.
  • Tone button - switches input impedance from 600 ohms to 150 ohms
    • Changes tone of both mic and DI inputs
  • Phantom power (+48 volts), switchable per channel
  • LED metering per channel
  • Output trim knob per channel for exacting level control and sound sculpting
  • Internal power supply (grounded, 3-pin IEC power cable)

Seriously upgrade your studio with the Warm Audio WA-412!

Warranty Info

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.