The CP-9 Pro+ is that rarity of rarities – a compressor with tons of squash that does not color your guitar tone or create excessive noise.

Review by Guitar Gear

Product Page

Review by OVNI LABS

Demo by Godlykelnc

CP9 Pro+

Looking at the MAXON Limited Edition OD-9 Creamdrive circuit, you’ll realize that this is not some redesign being cleverly marketed as a reissue – this is THE original OD-9 (TS-9) circuit, yet with the addition of true bypass switching. Even the PC board is the same one that Maxon’s been using for the past 30+ years, complete with empty slots where parts for the FET switching circuit have been left out!

Official Website

Review by gearnews

Review by Guitar World

Demo by MusicGearz

Demo by Valentin Rousseau

OD 9 Creamdrive

With a circuit based around the Panasonic MN3207 Bucket Brigade IC, the CS550's “straight-outta ’79” chorus effect is bold and resonant without sounding harsh.  Unlike the sterile chorus sounds of the 80’s, the 550 has an edgy, almost grainy quality that keeps your tone articulate and prevents wash-out.

The CS550’s custom-tuned oscillator circuit provides enough speed for authentic rotary speaker simulation, and just the right amount of modulation for a lush vibrato that won't leave you feeling queasy.

Review by Harmony Central

Review by musicradar

Review by The Gear Page

Demo by Stompbox Breakdown

Demo by Pedal of the Day

CS550 Stereo Chorus

The Extreme shares the same basic circuit architecture as the OD808. However, several key component values have been altered to achieve what may be the ultimate overdrive tone.

The OD808X offers a wider frequency response than a stock OD808, with an extended hi-frequency tonal range that offers additional clarity without becoming harsh.

It also features a harder clipping pattern than the standard model, creating a searing, full-bodied drive tone that helps chords ring and notes sing.

Review by Premier Guitar

Review by bonedo

Demo by We As A Company

Demo by eymard guerrero

OD808X Overdrive Extreme

guitar world platinum award
The Nine Series Overdrive Pro+ takes Maxon’s classic OD-9 circuit and serves it up with two side orders of Whoop-Ass in the form of 9/18 volt operation and a Mid Boost switch.

In 9-volt setting the Pro+ sounds and functions like the standard OD-9 with the added option of a healthy +3 dB of midrange boost at approximately 800 Hz (actual frequency is dependent on Control settings) – great for cutting through a band during solos.
When set to 18-volts the OD-9 Pro+ becomes an 800-pound Gorilla, offering up beefier lows, tighter saturation, improved dynamics and a chunky, aggressive pick attack that will make your amp sound and feel like it just took a Viagra.  Switch on the Mid Boost in this mode and let your solos breathe fire.

Don’t just play like the pros – play with the Pro Plus.

Review by guitartest.de

Demo by DAVEWEINER