Warm Audio WA-1B Tube Compressor

1. A Modern Legend At Your Fingertips

   The WA-1B accurately recreates world-class Scandinavian compression combining smooth tube-optical warmth with precision controls. Like its original inspiration favored by artists such as Adele, Dr. Dre, Lenny Kravitz, Norah Jones, the WA-1B delivers the revered “forgiving” musical compression favored on epic vocal recordings and much more.

2. Tube-Optical Tone, Modern Dynamic Control

   The original 1B-style of compression blends vintage rich tone with modern control for increased speed and access to compressor functionality not found in more vintage optical units. Using the threshold, ratio, attack, release, and makeup gain controls allows for precise dynamic control and tone shaping without sacrificing vintage tube-optical warmth. These all combine to create a compressor that shines on vocals, bass, drums, guitar, and any highly dynamic source.

Like the original, the WA-1B has all of the key controls normally absent from more vintage optical compressors. Using the threshold, ratio, attack, release, and makeup gain controls allows for precise dynamic control and tone shaping without sacrificing vintage tube-optical tone.

• All-Tube, Transformer-Balanced Optical Compressor
• Output gain: Off to +30 dBU
• Input impedance: 600Ω
• Two bus connectors to connect multiple sidechains
• Meter (VU) input, output, or compression amount
• Linear, low-noise power supply with toroidal power transformer
• Chassis Depth: 9.25 “ | 23.13 cm
• 5-Year Warranty

• True-to-spec 270 volt, 100% discrete analog signal path – handwired with through-hole components
• Transformer-balanced fully floating input and output – Custom-core large transformers from Scandinavian Manufacturer, Lundahl in Sweden
• Premium vacuum tubes

• Frequency response @ -3 dB: 5 Hz to 25 kHz
• Self-Noise: < -75 dBU @ 30 dB gain
• CMRR: > 60 dB @ 10 kHz
• Ratio from 2:1 to 10:1
• Variable Threshold: Off to -40 dBU
• Continuously variable, fixed, or fixed/manual attack and release times
• Fixed – Attack: 1 millisecond | Release: 50 milliseconds 
• Manual –  Attack: .5 – 300 milliseconds | Release: .05 seconds – 10 seconds
• Fixed/Man mode blends the release times of fixed and manual mode