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header-product Preamplifier Warm Audio WA73 — mic/line preamp, 20–20,000 Hz, 1.2 kΩ input impedance, Black

Preamplifier Warm Audio WA73 — mic/line preamp, 20–20,000 Hz, 1.2 kΩ input impedance, Black

Warm Audio WA73 preamplifier Photo 1
Warm Audio WA73 preamplifier Photo 2
Warm Audio WA73 preamplifier Photo 3
Warm Audio WA73 preamplifier Photo 1
Warm Audio WA73 preamplifier Photo 2
Warm Audio WA73 preamplifier Photo 3
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Short description

Warm Audio WA73 is a standalone mic/line audio preamplifier with a frequency range of 20–20,000 Hz and an input impedance of 1,200 Ω. Designed for recording and live sound, it accepts standard microphone and line sources and runs from 115/230 V at 50/60 Hz. The unit’s black finish and single-unit packaging suit studio tracking, voice, and instrument preamplification tasks.
Warranty: 2 Years
SKU: 8568202
Manufacturer: WARM AUDIO
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Product information

Description

The Warm Audio WA73 is a single-channel mic/line preamplifier styled after classic '73 British preamps. It provides a frequency range of 20–20,000 Hz, an input impedance of 1.2 kΩ, and accepts standard microphone and line sources. The unit is powered from 115/230 V at 50/60 Hz and comes in a black finish in a single rack-unit form factor suitable for studio and live tracking of voice and instruments.

Advantages

The WA73 reproduces the tonal characteristics associated with vintage '73-style preamps by combining discrete circuitry with custom Carnhill-style transformers and selected capacitor types in the signal path. Hand-wired and hand-assembled construction aims to retain the wiring practices associated with classic designs. With substantial gain capability and a transformer-balanced output, the preamp is built to deliver a musical, harmonically rich signal that works across a wide variety of microphones and sources.

Suitable for

  • Vocal recording and tracking
  • Acoustic and electric guitar preamplification
  • Bass and drum miking in studio or live settings
  • Ribbon, dynamic and condenser microphones
  • Tonal shaping of instrument or mix subgroups

Key specifications

  • Frequency response: 20–20,000 Hz
  • Input impedance: 1.2 kΩ
  • Single-channel mic/line preamplifier
  • Hand-wired and hand-assembled construction
  • Transformer-balanced signal path using custom Carnhill-style transformers
  • Black finish, single rack-unit form factor
  • Power: 115/230 V, 50/60 Hz

How to use

Connect a microphone or line-level source to the appropriate input and route the output to your recorder, interface, or mixing console. Set gain to achieve a clean, optimal level without clipping; the unit provides ample gain for low-output microphones. Use the preamp as the front end for tracking vocals, instruments, or for feeding a tonal front-end into a mixing chain. Follow standard safety and grounding practices when integrating the WA73 into studio or live systems.

Usage recommendations

For a natural, vintage-inspired character, pair the WA73 with dynamic and ribbon microphones or with condenser microphones when additional warmth and transformer coloration are desired. Adjust input gain conservatively to allow the transformer to impart subtle saturation when needed. Use balanced cabling and proper gain staging to preserve signal integrity.

Specifications

Product colour: The colour e.g. red, blue, green, black, white.
Black
All features
Power supply input voltage:
115/230
LED indicators:
Y
Microphone in: The socket where a microphone is connected to the device.
Yes
Control type: The way in which the device is controlled.
Rotary, Buttons
On/off switch: The button which is pressed to switch the device on or off.
Yes
Phantom power:
48
Built-in display: A display which is part of the product, so you do not need to attach another display.
No
Gain:
80 dB
6.35 mm (1⁄4-inch) input:
3
6.35 mm (1⁄4-inch) output:
1
XLR input:
1

Logistics data

Quantity per pack:
1 pc(s)

Technical details

Power supply input frequency: The frequency of the electricity, usually measured in Hertz (Hz), which is supplied by the power supply. Mains electricity in many parts of the world is 50Hz.
50/60
Product colour: The colour e.g. red, blue, green, black, white.
Black
Equalizer: Device that attempts to reverse the distortion incurred by a signal transmitted through a channel.
No

Inputs

Line-in:
Yes

Audio

Frequency range: The lowest and the hightest frequencies that can be inputted/produced.
20 - 20000
Input impedance:
1200 Ω

Description

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Customer reviews

Customer questions

FAQ

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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.

Where can I download the instructions for Warm Audio WA73 preamplifier?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.