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MXR M81 Bass Preamp Guitar Effects Pedal
MXR M81 Bass Preamp Guitar Effects Pedal
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The MXR Bass Preamp combines a pristine bass preamp with a studio-quality Direct Out in a Phase 90-sized box, providing clear tone without hogging precious pedalboard space. Use it to add a new voice to an old passive bass, sweeten up any amp, or put some special sauce on a particular song. Dial it in just the way you want it and send it straight to the house 'pre or post-EQ' with the built-in Direct Out.
Features:
- Separate INPUT & OUTPUT level controls
- 3-band EQ section with sweepable midrange
- Studio-quality Direct Out
- Input Impedance: 2.2 MΩ
- 1/4” Output Impedance: 300 Ω, 40 Hz
- Balanced Output Impedance: 120 Ω, 40 Hz
- Maximum 1/4” Output Level: +13 dBV
- Maximum Balanced Output Level: -2 dBV
- Noise Floor: -98 dBV
- THD: 0.03%, 1 kHz
- EQ Controls: ±16 dB, 40 Hz (Bass), ±17 dB, 250 Hz to 1 kHz (Mid),
- ±18 dB, 4 kHz (Treble)
- Input Control: Pre EQ, ±10 dB
- Output Control: Post EQ, +20 dB
- Bypass: True Hardwire Buffer
- Current Draw: 8.5 mA
- Phantom Power Current Draw: 5 mA
- Power Supply: 9 Volts DC
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Contact our experts for product support or help with your order

Shop with a specialist
Discover exceptional service at Swee Lee with a 45-minute session guided by our experts in-store
Book an appointmentHave a question?
Contact our experts for product support
or help with your order
Contact our experts for product support or help with your order
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