Keeley Unveils 25th Anniversary Compressor Plus Germanium
Keeley celebrates 25 years with the Compressor Plus Germanium, adding warm, musical tone-shaping via Japanese germanium circuitry to their best-selling pedal
Celebrating a quarter-century of defining guitar tone, Keeley Electronics has announced the release of the Keeley Compressor Plus Germanium. Marking the company’s 25th anniversary since Robert Keeley built his first compressor on a workbench in 2001, this latest iteration upgrades the best-selling Compressor Plus with a carefully voiced germanium stage for enhanced warmth, bloom, and touch sensitivity.
The Germanium Difference
Rather than utilizing the germanium transistor purely as a traditional gain device, Keeley has integrated a Japanese-style germanium component into both the audio output section and the compressor’s side-chain feedback circuit. This configuration functions as a specialized buffer and tone-shaping circuit. It actively smooths harsh high frequencies and adds a sweet, musical saturation to note decay—all without introducing unwanted noise or sacrificing headroom.
Because the pedal retains its clean headroom, it is designed to sit anywhere on a pedalboard and stack seamlessly with overdrive, fuzz, and modulation effects.
Intuitive Control with Signature Blend
The 25th Anniversary edition retains the straightforward four-knob layout that made the modern Keeley Compressor a pedalboard staple, allowing players to dial in anything from subtle studio-style enhancement to heavy country squash:
- Level: Controls the overall output volume.
- Compression: Dictates the intensity of the compression and sustain.
- Tone: Shapes the top-end frequencies of the compressed signal.
- Blend: Mixes the dry signal with the compressed signal to preserve the instrument's natural attack and clarity.
Additionally, a dedicated Single Coil / Humbucker switch keeps the compression recovery speed perfectly matched to the player's pickups.
Flexible Bypass and Pedalboard Integration
A major functional upgrade for this anniversary model is Keeley’s super-silent switching buffer. Players can switch between true bypass and buffered bypass modes on the fly, making the pedal highly adaptable whether utilized as an "always-on" tone shaper or an occasional dynamic boost.
Key Technical Specifications
- Circuitry: Japanese-style Germanium transistor integration (audio output and side-chain feedback)
- Controls: Level, Tone, Compression, and Signature Blend
- Bypass Modes: Selectable True Bypass or Buffered operation
- Power Requirements: Flexible 9–18V DC operation (standard center-negative)
- Current Draw: Low 25mA
- Origin: Designed and built in Oklahoma, USA
Pricing and Availability
The Keeley Compressor Plus Germanium is available now for $189.00 / £179.99. Buyers can choose between the standard Brushed Aluminum finish and the RKFX.com Custom Shop Exclusive Transparent Black.
For more information or to purchase, visit the official Keeley Electronics product page.
- +Germanium circuitry adds warmth and musical saturation without noise
- +Four intuitive knobs cover subtle enhancement to heavy squash
- +Selectable true or buffered bypass modes for flexible integration
- +Low 25mA current draw
- +Designed for stacking with other effects
- +Single coil/humbucker switch for matched recovery speed
What makes the germanium stage in the Keeley Compressor Plus Germanium different from traditional designs?
Rather than using germanium as a standard gain device, Keeley integrated a Japanese-style germanium component into both the audio output section and the compressor's side-chain feedback circuit. This functions as a specialized buffer and tone-shaping circuit, smoothing harsh high frequencies and adding musical saturation to note decay without introducing noise or sacrificing headroom.
Can I use the Compressor Plus Germanium with other pedals on my board?
Yes. The pedal retains clean headroom and is designed to sit anywhere on a pedalboard, stacking seamlessly with overdrive, fuzz, and modulation effects. It also features selectable true bypass or buffered bypass modes, making it adaptable whether used as an always-on tone shaper or occasional dynamic boost.
What power options does the Compressor Plus Germanium support?
The pedal operates flexibly on 9–18V DC power with a standard center-negative connector and draws only 25mA of current, making it efficient and compatible with most pedalboard power supplies.
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