Effects Pedal - Maxon, PAC9, Pure Analog Chorus

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Effects Pedal - Maxon, PAC9, Pure Analog Chorus

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The PAC9 is a classic analog chorus featuring swirling warm chorus sounds and stereo output for a wide chorus spread. In addition to the standard Speed and Width controls, the PAC9 offers a Bright switch for a focused sound and a Pure switch that boosts the signal.


  • Clean analog chorus sound using the Maxon MC4107D BBD chip
  • Speed and Width controls
  • Bright and Pure switches offer a variety of sounds for bold and deep chorus effects
  • Widely adjustable Speed range of 0.33Hz - 8Hz. Leslie-like tremolo chorus is available at faster Speed settings.
  • Stabilized DC to DC converter impervious to battery voltage drop and fluctuations in power providing rock solid tone and functionality.
  • Dual outputs allow for stereo chorus effects with two amplifiers or stereo setups.
  • High-performance noise reduction using an RMS level sensor and a high-definition VCA providing a dynamic range with low noise.
  • Clean chorus without distortion is available with plenty of headroom
  • Can be used in effect loops of amplifiers. (+4dB/-20dB)
  • True bypass switching on both outputs provided by a 4PDT mechanical switch with no alteration of dry signal’s tone when effect is bypassed
  • LED indicator for effect on/off
  • DC power or 9V battery
  • Made in Japan
Item ID:
RoHS Compliant
Product Measurements by Type
Delay Time4.6mSec~7.68mSec
Height54 mm
Input Impedance500k ohms
Internal Circuit Voltage9V (DC to DC Converter)
Length124 mm
Maximum Output Level+9dB(400Hz)
Output Impedance10k ohms or less
Power Consumption21mA/9VDC
Residual Noise-95dB or less(IHF‐A)
Speed Frequency0.33Hz~8Hz
Weight580g (including battery)
Packaging Information
Packaging Dimensions6 in. × 3.5 in. × 2.5 in.
Weight (Packaging)1.4727 lbs.
PDF: ManualAll Models

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PDF: Manual Manual4.84 MB

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Product Reviews

5.00 out of 5 based on 1 reviews
Pedro Arizmendi - October 8th, 2021
5 out of 5

I compared this amazing pedal head to head with a Boss modified Chorus, and a Boss Chorus rack unit, and the Maxon PAC9 won, as it has a deeper and cleaner sound. It has the most powerful sound you can imagine. It can be wobbly because the range is much wider, but can be subtle and elegant too. It has a great headroom and does not distort, since it has premium audio paths. In comparison, the Boss Chorus is anemic and distorts. Amplified parts provided to me the best price and service. Thanks!