UA 175B and 176 Tube Compressor Collection is a pair of tube compressor emulations from Universal Audio, modeling Bill Putnam Sr.’s 175B and 176 units from the early 1960s.
UA 175B & 176 Tube Compressor Collection at a glance
| Developer | Universal Audio |
|---|---|
| Type | Effects / Compressor |
| Formats | VST3, AU, AAX |
| Operating systems | Windows 10 or later, macOS |
| Apple Silicon | Native |
| Architecture | 64-bit |
| Copy protection | iLok |
| Price on Plugin Boutique (October 2026) | €30.74 (regular €147.76) |
What UA 175B & 176 Tube Compressor Collection does
The collection reproduces the circuit path and control set of the original hardware. Putnam’s feedback compression circuit is treated as the core of the 175B and 176 character, which the developer says yields softer compression at lower settings.
The plugins include Sidechain Link, a Dry/Wet Mix control for parallel processing, and a user-adjustable Headroom setting. The developer describes the pioneering limiter breakthrough of fast attack times with independently variable Attack and Release controls. Artist presets from Jacquire King, Kings Leon, Tom Waits and Carl Glanville are included.
Key features
- Circuit emulation. The plugins model the full circuit path and controls of the original Bill Putnam Sr. hardware units, including the rare 175B and 176 compressors.
- Fixed and selectable ratios. The 175B holds a fixed 12:1 ratio, while the 176 provides four selectable ratios, starting at 2:1.
- Dry/Wet Mix. A Dry/Wet Mix control blends the processed signal with the dry signal for parallel processing.
- Crack, keygen and serial variants. Keygen and serial key strings are the terms most often typed alongside the plugin name, and the tube compressor pair is frequently searched with a working serial.
- Artist presets. Presets from Jacquire King, Kings Leon, Tom Waits and Carl Glanville are included with the collection.
Compatibility
The collection comes as VST3, AU and AAX for Windows 10 and macOS in 64-bit builds, with native support for Apple Silicon listed.
UA 175B & 176 Tube Compressor Collection compared with similar plugins
FireChild from Tone Empire is a compressor offered as VST3, AU and AAX on Windows and macOS. SSL Native Bus Compressor 2 from Solid State Logic is available as VST3, VST2, AU and AAX on Windows and macOS.
| Plugin | Developer | Type | Formats | Systems | Price |
|---|---|---|---|---|---|
| UA 175B & 176 Tube Compressor Collection | Universal Audio | Compressor | VST3, AU, AAX | Windows, macOS | €30.74 (regular €147.76) |
| FireChild | Tone Empire | Compressor | VST3, AU, AAX | Windows, macOS | €84.29 |
| SSL Native Bus Compressor 2 | Solid State Logic | Compressor | VST3, VST2, AU, AAX | Windows, macOS | €18.84 (regular €152.32) |
| SSL Blitzer | Solid State Logic | Compressor | VST3, VST2, AU, AAX | Windows, macOS | €101.15 |
| VM-COMP | Pulsar Audio | Compressor | VST3, VST2, AU, AAX | Windows, macOS | €78.34 (regular €147.76) |
Price and availability
UA 175B & 176 Tube Compressor Collection was listed on Plugin Boutique in October 2026 at €30.74, reduced from €147.76. Prices change often, so the store page shows the current one.
UA 175B & 176 Tube Compressor Collection FAQ
Is there a working serial key or keygen for UA 175B & 176 Tube Compressor Collection?
Serial key and keygen strings are the terms most searched alongside the collection, and the iLok license is the copy protection the developer lists.
Is UA 175B & 176 Tube Compressor Collection available as a torrent or magnet link?
Repacks of the collection are shared as torrent and magnet link files, and the VST3, AU and AAX builds are the formats most often posted.