# Warm Audio WA-412 4-Channel Microphone Preamplifier, Black

**URL:** https://aio.lv/en/product--warm-audio-wa-412--8568199
**Data updated:** 2026-06-23 14:55 (EEST)
**Category:** AV Receivers & Amplifiers
**Manufacturer:** WARM AUDIO
**Manufacturer code:** WA-412
**EAN:** 638142859295
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 183.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 978.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--warm-audio-wa-412--8568199

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Warm Audio WA-412 is a professional 4-channel microphone preamplifier designed for high-quality audio recording. Featuring a frequency range of 2 Hz to 20,000 Hz and an input impedance of 2000 Ω, this black-finished unit delivers clean, reliable gain for studio microphones. It is an essential tool for engineers and musicians seeking versatile, high-fidelity signal amplification for multi-channel recording setups.

## Long description

The Warm Audio WA-412 is a professional 4-channel microphone preamplifier designed to bring the classic American console sound to any recording environment. Housed in a sleek 1RU black chassis, this unit provides high-fidelity signal amplification that is widely recognized for its punchy low end and smooth, open high-frequency response. By utilizing custom-wound Altran USA transformers and fully discrete socketed 6-pin opamps, the WA-412 ensures professional-grade audio quality that meets the demands of modern studio engineers and musicians.
Advantages
The primary advantage of the WA-412 lies in its ability to deliver a high-end, vintage-inspired sound at an accessible price point. The inclusion of custom Altran transformers allows for an extended low-frequency response, providing a distinct, large character to your recordings. With four independent channels, it is an ideal solution for tracking drums, full bands, or multi-microphone setups simultaneously. The design features socketed opamps, allowing users to customize their sound by swapping components, while the output trim controls offer precise gain staging for creative flexibility.
Suitable for
Recording multi-channel drum kits
Tracking full bands in a studio environment
Professional vocal and instrument recording
Adding vintage console character to digital signals
Direct injection of instruments via the front panel
When it may not be suitable
This preamplifier may not be the best choice for users who require a completely transparent or clinical sound, as it is specifically designed to impart a vintage, colored character to the audio signal. Additionally, it is intended for rack-mount studio environments and may not be suitable for portable, battery-powered field recording setups.
Key specifications
4-channel microphone preamplifier
Frequency response: 2 Hz to 20,000 Hz
Input impedance: 2000 Ω
Custom Altran USA input and output transformers
Fully discrete socketed 6-pin opamps
Output trim control on each channel
Tone switch for transformer impedance selection
1RU rack-mount design
How to use
To use the WA-412, connect your microphones to the XLR inputs on the rear panel. Adjust the gain levels using the primary controls, and utilize the output trim knobs to fine-tune the signal level before it hits your recording interface. The Tone switch allows you to toggle between different transformer input impedances, enabling you to choose between a classic, warm, punchy sound or a more open, neutral tone. For instrument recording, use the front-panel DI inputs to capture guitars or basses directly through the preamp circuitry.
What to consider before purchase
Ensure you have sufficient rack space for a 1RU unit
Verify that your recording interface has line-level inputs to accept the output of the preamp
Consider the need for external power and balanced cabling
Assess whether the vintage-colored sound profile matches your production style
Usage recommendations
For the best results, experiment with the Tone switch on different sources to see how the impedance change affects the character of your microphones. Utilize the output trim to drive the input stage harder for more saturation while keeping the final output level at an optimal range for your converters.

## Specifications

| Feature | Value |
|---|---|
| Phantom power | 48 |
| Built-in display | No |
| Gain | 65 dB |
| 6.35 mm (1⁄4-inch) output | 4 |
| XLR input | 8 |

### Audio

| Feature | Value |
|---|---|
| Total Harmonic Distortion (THD) | 0.4 % |
| Input impedance | 2000 Ω |
| Frequency range | 2 - 20000 |

### Technical details

| Feature | Value |
|---|---|
| Product colour | Black |

## FAQ

### How much does the Warm Audio WA-412 4-Channel Microphone Preamplifier cost, and is it available for purchase?

The price is 1,183.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Warm Audio WA-412 4-Channel Microphone Preamplifier be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All WARM AUDIO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized WARM AUDIO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/8568199/53959266_large.webp