
Warm Audio
Warm Audio WA273 Dual Channel Mic Preamp
★★★★★
Dual-channel '73-style preamp with 80dB of gain, Carnhill transformers, and a fully discrete signal path.
$1,199.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Key Features
2-channel Mic/Line/Instrument Preamp
Specifications
Brand
Warm Audio
Model
WA273
Type
2-Channel Mic/Line/Instrument Preamp
Channels
2
Gain
80dB
Signal-to-Noise Ratio
80 dB
Signal Path
Fully Discrete, Carnhill Transformer Balanced
Connectivity
XLR
Compatible Devices
PC, Laptop, Audio Interface, Mixing Console
Power Source
Corded Electric
Construction
Alloy Steel, Metal
Dimensions
27.3 x 18.3 x 4.15 inches
Weight
6.5 kg
Color
Black
Pros & Cons
👍 Pros
- 80dB of gain handles low-output ribbon and dynamic microphones with ease
- Carnhill transformer-balanced discrete signal path delivers rich harmonic warmth
- Dual-channel design records two sources simultaneously in a single rack unit
- Mic, line, and instrument inputs on each channel provide broad source compatibility
- Delivers classic '73-style tone at a fraction of vintage unit pricing
👎 Cons
- No built-in EQ, unlike the full '73-style channel strips it draws inspiration from
- At 27.3 x 18.3 x 4.15 inches it occupies significant rack space
- No digital output — requires a separate audio interface or converter for recording to a DAW
- Sound coloration from the transformer design may not suit engineers seeking a transparent, neutral preamp
Frequently Asked Questions
How many channels does the WA273 provide?
The WA273 is a dual-channel preamp, allowing you to record two independent sources simultaneously — useful for stereo miking, recording two vocalists, or tracking a mic and DI signal at once.
What type of inputs does the WA273 accept?
Each channel accepts microphone, line-level, and instrument-level signals, making it versatile for vocals, guitars, keyboards, and other sources.
What transformers does the WA273 use?
It uses Carnhill transformers in a fully discrete balanced signal path, which contribute to the warm, harmonically rich character the preamp is known for.
Does the WA273 provide phantom power?
Yes, each channel has independent phantom power for condenser microphones that require 48V.
How much gain does the WA273 offer?
The WA273 provides up to 80dB of gain, which is enough to drive even low-output ribbon and dynamic microphones without needing an external booster.