Tube Compression That Changed Recording History
175B & 176 Tube Compressors - Vintage Character Meets Modern Control

UA 175B & 176 Tube Compressor Collection delivers the rich harmonic saturation that defined classic recordings. Add vintage compression and detail to vocals, drums, guitars, and more through Bill Putnam Sr.'s revolutionary designs. The 175B provides aggressive 12:1 limiting for punchy transients, while the 176 offers versatile 2:1 to 12:1 ratio controls for dynamic shaping. Modern features like Dry/Wet Mix and Headroom controls let you blend analog grit with digital precision effortlessly.
Shape Sounds with Putnam's Original Compression Blueprints
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Spice up synths with harmonically rich tube/transformer saturation
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Creatively enhance dynamics using 2:1, 4:1, 8:1 & 12:1 ratio controls
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Get perfect drum/vocal sounds via parallel processing & headroom matching
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Add three-dimensional depth to basslines & guitar tracks
Trusted by Top Engineers
- Mark Ronson
- Sylvia Massy
- Michael Brauer
BUNDLE HIGHLIGHTS
- 175B Tube Limiter:
- Signature Feature: Fixed 12:1 ratio with aggressive peak control
- Best For:
- Snare drum punch with 30ms attack
- Controlling bass guitar dynamics
- Vocal "bite" enhancement
- 176 Tube Compressor:
- Signature Feature: Variable ratios from subtle 2:1 to crushing 12:1
- Best For:
- Vocal smoothing at 4:1 ratio
- Mix bus glue with parallel processing
- Synth pad warmth enhancement
TECHNICAL REQUIREMENTS
Formats :
VST3, AU and AAX
Operating System :
Mac OS 10.7 and up (including Native M1 Compatibility)
PC Windows 7 and up
DAWs :
Works with All major DAWs
including Ableton Live, Pro Tools, Logic Pro, FL Studio, Cubase, Nuendo, Studio One, Bitwig, Reaper, Reason etc.
Important note:
UAD plugins do not work in Apple's Garageband DAW
Now Compatible with Any Soundcard on Mac and PC