MXR M87B Bass Compressor Blackout Series Pedal

A stealth-finished compressor with MXR pedigree, MXR's M87B Blackout Series bass compressor offers recording-quality compression and a black finish.

The MXR M87B Bass Compressor Blackout is dressed in a stealth finish! These Blackout Series pedals feature a matte black housing with gloss black text and a bright yellow LED. Same great tone and durability with a classy look that will hold down the look and tone of any pedalboard.


- The Bass Compressor provides recording-quality compression with Constant Headroom Technology(TM)
- True bypass switching for keeping your low end tight and clean
- This pedal can be powered by a 9-volt battery, a Dunlop ECB003 9-volt adapter, or the DC Brick(TM), Iso-Brick(TM), and Mini Iso-Brick(TM) power supplies (not included)
WARNING: Cancer and Reproductive Harm -

- Input Impedance: 1 MOhm
- Output Impedance: 600 Ohm
- Max Input Level: +14 dBV
- Max Output Level: +8.5 dBV
- Freq. Response: +/-1 dB, 20 Hz to 20 kHz
- Noise Floor: * -90 dBV
- THD: ** > 0.5%
- Gain: 31 dB
- Compression Ratio: 4:1, 8:1, 12:1, 20:1
- Attack Time: 20 us to 800 us
- Release Time: 50 ms to 1.1 s
- Current Draw: LEDs OFF 14 mA
- Current Draw: LEDs ON 19 mA
- Power Supply: 9 volts DC
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 1 lbs
Shipping Dimensions: 6 x 5 x 3 in
Manufacturer Part Number (MPN): M87B

For support or warranty questions, please contact the manufacturer:
Phone: 707-745-2722


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