MXR Uni-Vibe Chorus/Vibrato Effect Pedal For Electric Guitar Novo Series It has five height options

It has five height options to put the amp at the best height for your listening situation and rubber pads on the support arms help secure your amp

as well as depth and parameter controls

Experimenting with the voice knob can dramatically alter the overdriven bass and treble tones

Response (-3 dB): 48Hz-20kHz

Yamaha DXR8MKII 8″ 1100W Powered Speaker

MXR Uni-Vibe Chorus/Vibrato Effect Pedal For Electric Guitar Novo Series It has five height optionsMXR UNI VIBE CHORUS VIBRATO M68 The MXR Uni Vibe Chorus Vibrato delivers classic textures and tones with a smaller footprint, a simple three knob interface, and true bypass switching. This pedal can be powered by a 9 volt battery, a Dunlop ECB003 9 volt adapter, or the DC Brick, Iso Brick, and Mini Iso Brick power supplies (not included).