Bumper™ Specifications

The Bumper is a high performance instrument selector built to seamlessly connect up to four instruments to your stage amp. Each input features the award-winning Radial Class-A buffer to enable longer cable runs without signal degradation. A toggle switch allows selection of the active input in sequential order, with LEDs to provide visual feedback. Flat frequency response and an exceptionally low noise floor ensure that the only thing you hear is your instrument. Built rugged for the road, the Bumper is constructed out of military grade PCBs and 14-gauge steel to ensure that it keeps on performing night after night.

Bumper Block Diagram PZ-Deluxe Block Diagram

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Specifications are subject to change without notice.
Audio circuit type: Discrete class-A, except tuner output
Frequency response: ±<1dB 20Hz-20kHz
Gain: -0.22dB
Dynamic range: 109dB
Maximum input: +7dBu with trim fully clockwise (no level reduction)
Input impedance (trim mode): 220kΩ
Input impedance (drag mode): 20kΩ to 1MΩ
Output impedance: 120Ω
Equivalent input noise: -109dBu, A-weighted
Noise floor: -109dBu, A-weighted
Intermodulation distortion: 0.015% @ -20dBu
Total harmonic distortion (THD): 0.007% @ -20dBu
Phase deviation: -15° @ 20hZ, +5° @ 20kHz
Crosstalk: -94dB
Tuner output: Always-on buffered output
LED indicators: Large 3mm OD ultra-bright LED's
Construction: 14 gauge steel chassis & outer shell
Finish: Durable powder coat
Size: (L x W x D) 4.75" x 3.75" x 1.75" (120.65 x 95.25 x 44.45mm)
Weight:  1.4lbs (635 grams)
Shipping Size: (L x W x D): 6.25" x 4.25" x 3" (158.75 x 107.95 x 76.2mm)
Shipping Weight: 1.7lbs (771 Grams)
Current draw: 60mA
Warranty: Radial 3-year, transferable
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