MXR M291 Dyna Comp Mini

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MXR M291 Dyna Comp Mini

MXR

M291 Dyna Comp Mini

4.7 Expert Rating

Product Info

Article Number: 532047
Brand: MXR
Model: M291 Dyna Comp Mini
Price: $149.60

* Prices may vary. Check retailer for current pricing and availability.

This little Dyna Comp Mini is a great way to get that iconic, squashed-out tone without the full-size footprint. It's fantastic for players who want a simple, transparent compression for rhythm parts or lead sustain—especially useful for country, funk, or adding some grit to your clean tones. Just be aware that its limited controls mean you're getting a pretty specific flavor of compression.

Product Description

  • MXR M291 Dyna Comp Mini
  • Effect Pedal
  • Compressor
  • Classic MXR Dyna Comp sound in a compact MXR mini housing
  • The rare CA3080 'Metal Can' IC allows a quieter operation without noise
  • higher transparency and a wider dynamic range
  • True bypass
  • Controls for output
  • sensitivity
  • Bypass footswitch
  • LED status
  • Input: 6.3 mm jack
  • Output: 6.3 mm jack
  • Power supply via 9 V DC power supply unit (Dunlop ECB 003
  • not included in the delivery) with a 2.1 x 5.5 mm hollow plug
  • polarity (-) inside
  • Power consumption: 4 mA
  • Metal housing
  • Dimensions (L x W x H): 90 x 40 x 55 mm
  • Weight: approx. 160 g

*Note:* battery operation is not supported.

PROS
  • • CA3080 'Metal Can' IC delivers notably quieter operation than older versions.
  • • Mini size makes it exceptionally pedalboard-friendly for tight setups.
  • • Classic Dyna Comp squish and sustain, instantly recognizable and usable.
  • • True bypass preserves your signal integrity when the compression isn't needed.
CONS
  • • Limited control set; dialing in subtle compression can be tricky.
  • • Lack of blend control restricts tonal shaping and naturalness.
  • • Requires a dedicated power supply; battery operation isn't an option.

Product Video

Key Features

Compressor Type Optical (FET-based)
Controls Output, Sensitivity
Blend/Mix None
Bypass Type True Bypass
Power Supply 9V DC (2.1 x 5.5 mm, center negative)
Dimensions 90 x 40 x 55 mm

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Frequently Asked Questions

It significantly reduces noise and hiss, resulting in a cleaner, more transparent compression without the characteristic 'gurgle' some associate with the older designs.
Not quite—the lack of a blend control means it’s less flexible for subtle compression or preserving more of your original tone. It excels at delivering a more aggressive, signature Dyna Comp sound.
Yes, but it *must* have a 2.1mm x 5.5mm barrel connector and a center-negative polarity. Using the wrong power supply can damage the pedal.

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