Maxon CP-9 Pro+ Compressor Pedal

£175.00 (including VAT @ 20%)

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This item is available to order, and we do not currently have the item in stock.

When you place your order, we will request the item from our supplier as soon as possible. We will dispatch this product to you as soon as it is received from our supplier.

"Estimated delivery to you" is our estimate of when we will be able to deliver the product to you, based on our supplier's normal delivery timescales. If we become aware it is going to take significantly longer than normal to deliver this item, we will let you know, otherwise, we will advise by email or text message when the item has been dispatched from our distribution centre.

Estimated delivery to you: 13th December 2016
FREE Delivery available.

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1 year warranty and 30 day money back guarantee included

1 year warranty and 30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

All Products are new unless stated, and include a minimum of one year warranty.

Some items are only eligible for money back guarantee if they are returned to us unused and sealed in the original packaging, and in the case of software, unregistered. These items include:

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We are unable to accept returns of any custom made items designed to work together as a unique package, such as computer system built to a customer’s personal specifications. Exceptions may only be possible with prior agreement of the vendor, and may be subject to a cancellation fee.

Product Ref: 81566

  • Offers up to +30dB of Clean Gain Boost
  • Designed with a Studio-Grade DBX Compression Circuit
  • Voltage Doubler Adds Extra Headroom and Full-Frequency Response
  • Use with any Instrument and for a Wide Variety of Applications
  • True Bypass Switching Provides Transparent Tones

Maxon CP-9 Pro+ Compressor Pedal

The Maxon CP-9 Pro+ Compressor Pedal delivers up to +30dB of boost without adding unwanted colour and distortion to your tone. Smooth and transparent, the pedal features studio-grade DBX compression circuitry to provide a low noise floor at any volume level, and a smooth, balanced dynamic response. The CP9 Pro+ can be used with any instrument as a clean booster to clean up any dirty amp, or used anywhere in your signal chain to get the best clarity where you need it. Also featuring true bypass switching to reduce signal loss in long cables and other pedals when the Compressor is off, the CP-9 Pro+ is ideal for musicians wanting to clean up their sound or boost their overall tone without adding unwanted noise.

Product Ref: 81566

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Spend another £75.00 to buy on finance Finance from £6.82 per month  

  • 15.9%
  • £8.64
  • £311.04
Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

Full Description

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A Powerfully Clean Boost

Built with a studio-grade DBX compression circuit, the CP-9 Pro+ offers an incredibly clean gain boost of up +30dB that doesn’t add colour to your tone or create excessive noise. With a variable 1:1 to ∞:1 compression ratio, the pedal can be used with any instrument and for a wide variety of applications. Use as a straight clean booster or volume attenuator, the pedal will clean up any dirty amp by reducing the level of input and allowing the true tone to shine through. An internal voltage doubler provides twice as much power, creating more headroom and full-frequency response.

Maxon's Note on Powering The CP-9 Pro+

This pedal’s voltage regulator IC requires a high inrush current of approximately 2000 mA upon startup. When using with a Power Brick such as the Voodoo Labs Pedal Power 2+, this pedal should be connected to a high current power jack when possible.

If it is not possible to connect to a high current jack, you can power the CP-9 Pro+ by leaving a battery in the pedal. Upon initial start-up, unplug the external DC power input cable, engage the pedal, and then plug the DC power input cable back in – the pedal will now power up normally off the external power supply until you power down your pedalboard.

About Maxon

Maxon started out in Japan in 1965 under the name Nisshin Onpa, manufacturing guitar pickups before producing OEM products for other companies. Nisshin Onpa was responsible for designing and manufacturing many legendary pedals while working in partnership with Ibanez, including the TS-808/TS808 and TS9 tube screamers. Although many of the pedals Maxon created were released under the Ibanez name, Maxon was producing pedals under their own name, and in 2002 when the two companies parted way, Maxon began to push its name as a manufacturer of high-quality effects pedals. Today Maxon produce "hard-to-find" vintage type effects pedals, and are used by many artists such as Pearl Jam, Troy Van Leeuwen, Steve Stevens, Brad Whitford, and many more.



  • Input Impedance: 500K Ohms
  • Input Jack: 1/4 Inch Standard Phone Jack
  • Output Impedance: 10K Ohms or Less
  • Output Jack: 1/4 Inch Standard Phone Jack
  • Number of Output: 1
  • Switch: Normal/Effect (True Bypass Configuration)
  • Maximum Output Level: +18 dBu (1 KHz)
  • Controls:
    • Threshold: 0 dBu to -40 dBu
    • Ratio: 1:1 to ∞:1
    • Gain: 0 dB to +30 dB
  • Distortion Ratio: 0.01 (1 kHz) at 0 dB output
  • Residual Noise: 95 dBu (Input Shorted, IHF-A Weighted)
  • Indicator: Normal/Effect LED, Reduction LED (When Reduction LED Lights, Compression is More Than 3 dB)
  • Accessory: 1 x 9V Manganese Dry Battery, Operating Manual, Warranty Card

Power Specs

  • Internal Circuit Voltage: Stabilized +/-9V DC-DC Converter
  • Power Supply: 9V Manganese Dry Cell Battery (6F22) or Special AC Adaptor
  • Power Voltage: DC9 V (Battery) / DC10 V (AC-Adaptor)
  • Current Consumption: 25 mA (9 V) / 23 mA (10 V) at 18 Volts
  • Battery Life:
    • Panasonic NEO Battery 6F22NB: Approx. 5.1 Hours
    • Panasonic Alkaline Battery 6LF61G: Approx. 12.4 hours
  • AC Adaptor: AC210N (Option)
    • Input: AC120V
    • Output: DC9V/200 mA Center - / Sleeve +)


  • Width: 74mm
  • Depth: 124mm
  • Height: 54mm
  • Weight (Including Battery): 580g (Approx.)

Please Note: Pedal does not come with an AC adaptor