Warm Audio WA-2A – Tube Optical Compressor
The Warm Audio WA-2A is a single-channel tube optical compressor inspired by the legendary 2A-style leveling amplifiers. Known for smooth, musical gain reduction and warm analog tone, it’s well suited for vocals, bass, acoustic instruments and mix processing—available at Soundium.
Key Features
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Classic tube–optical circuit: Uses a T4B-style optical attenuator for naturally smooth compression.
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CineMag input and output transformers: Provide transformer-balanced warmth and enhanced harmonic depth.
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Simple control set: Peak Reduction and Output Gain knobs make operation fast and intuitive.
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Premium tube stage: Equipped with 12AX7, 12BH7 and 6AQ5/6P1 tubes for rich analog character.
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Stereo link capability: Combine two units for linked stereo operation on mix-bus or stereo sources.
Customer Benefits
The WA-2A delivers the smooth, musical compression associated with classic optical designs. Its tube stage adds warmth and presence, making vocals fuller, bass more controlled and acoustic instruments more refined. With a simple interface and transformer-balanced signal path, it integrates easily into any studio workflow—available at Soundium.
Quick Specs
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Type: Tube optical compressor
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Gain reduction: Up to approx. 40 dB
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Frequency response: 15 Hz–20 kHz
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Attack time: approx. 10 ms
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Release time: approx. 60 ms to 0.5–5 s (program dependent)
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Rack size: 48.3 cm (19″), 2U height
What’s in the Box
- Warm Audio WA-2A compressor
- IEC power cable
- User documentation
Use Cases / Ideal For
Great for vocals, bass guitar, acoustic instruments, drum buses, parallel compression and mix-bus sweetening where smooth, vintage-style dynamics control is desired.
Compatibility
Connects via balanced XLR or ¼″ TRS. Supports stereo linking with a second WA-2A. Fits standard rack systems and integrates with audio interfaces, mixers and outboard setups.
Pros & Cons
✅ Pros:
- Classic tube–optical compression sound
- Warm, musical tone suitable for many sources
- Stereo link option for dual-unit setups
⚠️ Cons:
- Single-channel design requires a second unit for stereo
- Fixed attack and release behaviour limits detailed shaping
The Warm Audio WA-2A brings vintage optical compression into modern studios with premium components, smooth operation and unmistakable tube warmth—available at Soundium.
