With high-quality bass effects specifically designed for bassists, MXR Bass Innovations is the world's best-selling bass pedal series. To celebrate the 15th anniversary, MXR is releasing a limited set of the two most popular stompboxes in the series, consisting of the MXR Bass Compressor and the MXR Bass Envelope Filter. The pedals in the Blackout series are housed in a matte black casing with glossy black text and a bright yellow LED. The great sound and durability of the original in a dark guise.

The MXR Bass Envelope Filter delivers classic analog envelope filter sounds in an easy-to-use and compact pedal specifically designed for bass. With separate Dry and Effect knobs, you can dial in the perfect mix of effect and direct signal without compromising on low ends. The Decay and Q knobs allow you to shape the wide range of filter tones, and with a simple turn of the Sensitivity knob, the pedal can be adjusted to the specific attack - as well as to passive or active basses. The power supply circuit of the Bass Envelope Filter is designed to withstand overvoltage or polarity errors, and its true bypass circuit preserves tone in bypass mode. All of this is housed in a robust, lightweight Phase 90 aluminum casing that is ultimately portable and saves space on the pedalboard.

• Celebrating the 15th anniversary of the world's best-selling bass pedal series
• Two of the most popular MXR bass pedals in a matte black stealth finish with glossy black text and a bright yellow LED
• The MXR Bass Envelope Filter delivers classic analog envelope filter sounds without compromising the bass
• Limited edition: 1500 pieces available worldwide
• True Bypass
• Current draw: 6 mA
• Power supply: 9V DC.