
Warm Audio WA-2A Tube Optical Compressor
The WA-2A faithfully recreates the legendary vintage tube optical compressor known for its smooth, musical compression and rich analog warmth. Combining gentle optical gain reduction with premium tube circuitry, it delivers classic dynamics control without sacrificing tone, making it ideal for vocals, bass, acoustic instruments, orchestral recordings, and more. Inspired by the iconic compressors used on countless legendary recordings, the WA-2A offers timeless studio-quality sound with a simple and intuitive 2-knob design.
Features:
- 2A-Style, Transformer Balanced, High Voltage, Opto Tube Compressor
- Variable Pre-Emphasis, Allows For Compression High Pass Filtering (Tone Control)
- Stereo-Link Capable Via TRS Connector
- XLR & TRS Balanced Line Level Outputs - 600 Ohms Impedance
- XLR & TRS Balanced Line Level Inputs - 600 Ohms Impedance
- Meter Displays Both dB Gain Reduction & dB Output
- Power - 115/230 Volts (Switchable), 50/60 Hz
- Utilises Premium Grade Input & Output Cinemag USA Transformers
- USA-Made Kenetek Opto-Cell Attenuator T4-Style Module. Socketed To Allow Retro-Fitting With Other Opto-Cells
- Premium Tubes. (2X) 12AX7, (1X) 12BH7, (1X) 6AQ5 or 6P1.
- Fully Discrete Signal Path
- Dimensions: 19" Rackmount Chassis, 2U. 19" X 7" X 3.5"
- Chassis Depth: 7” (17.5 cm)
Original: $1,136.61
-65%$1,136.61
$397.81More Images




Warm Audio WA-2A Tube Optical Compressor
The WA-2A faithfully recreates the legendary vintage tube optical compressor known for its smooth, musical compression and rich analog warmth. Combining gentle optical gain reduction with premium tube circuitry, it delivers classic dynamics control without sacrificing tone, making it ideal for vocals, bass, acoustic instruments, orchestral recordings, and more. Inspired by the iconic compressors used on countless legendary recordings, the WA-2A offers timeless studio-quality sound with a simple and intuitive 2-knob design.
Features:
- 2A-Style, Transformer Balanced, High Voltage, Opto Tube Compressor
- Variable Pre-Emphasis, Allows For Compression High Pass Filtering (Tone Control)
- Stereo-Link Capable Via TRS Connector
- XLR & TRS Balanced Line Level Outputs - 600 Ohms Impedance
- XLR & TRS Balanced Line Level Inputs - 600 Ohms Impedance
- Meter Displays Both dB Gain Reduction & dB Output
- Power - 115/230 Volts (Switchable), 50/60 Hz
- Utilises Premium Grade Input & Output Cinemag USA Transformers
- USA-Made Kenetek Opto-Cell Attenuator T4-Style Module. Socketed To Allow Retro-Fitting With Other Opto-Cells
- Premium Tubes. (2X) 12AX7, (1X) 12BH7, (1X) 6AQ5 or 6P1.
- Fully Discrete Signal Path
- Dimensions: 19" Rackmount Chassis, 2U. 19" X 7" X 3.5"
- Chassis Depth: 7” (17.5 cm)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The WA-2A faithfully recreates the legendary vintage tube optical compressor known for its smooth, musical compression and rich analog warmth. Combining gentle optical gain reduction with premium tube circuitry, it delivers classic dynamics control without sacrificing tone, making it ideal for vocals, bass, acoustic instruments, orchestral recordings, and more. Inspired by the iconic compressors used on countless legendary recordings, the WA-2A offers timeless studio-quality sound with a simple and intuitive 2-knob design.
Features:
- 2A-Style, Transformer Balanced, High Voltage, Opto Tube Compressor
- Variable Pre-Emphasis, Allows For Compression High Pass Filtering (Tone Control)
- Stereo-Link Capable Via TRS Connector
- XLR & TRS Balanced Line Level Outputs - 600 Ohms Impedance
- XLR & TRS Balanced Line Level Inputs - 600 Ohms Impedance
- Meter Displays Both dB Gain Reduction & dB Output
- Power - 115/230 Volts (Switchable), 50/60 Hz
- Utilises Premium Grade Input & Output Cinemag USA Transformers
- USA-Made Kenetek Opto-Cell Attenuator T4-Style Module. Socketed To Allow Retro-Fitting With Other Opto-Cells
- Premium Tubes. (2X) 12AX7, (1X) 12BH7, (1X) 6AQ5 or 6P1.
- Fully Discrete Signal Path
- Dimensions: 19" Rackmount Chassis, 2U. 19" X 7" X 3.5"
- Chassis Depth: 7” (17.5 cm)

















