Alesis Midiverb IV multi-effects

18 bit A/D and D/A converters.
24 bit internal processing.
20Hz-20kHz bandwidth.
90dB dynamic range.
Auto Level Sensing can set the optimum input levels.
32 effects algorithms.
True stereo parallel processing.
256 powerful programs with 128 spaces for user-created effects.
Graphic interface.
MIDI controller routing.
Assignable footswitch input.

Frequency Response: 20Hz – 20kHz ±1dB.
Dynamic Range: >90dB.
Harmonic Distortion: 0.01% typical @1kHz @ 0dBV.
Digital Conversion Scheme: 18 Bit Delta Sigma.
Processor Speed: 3 million instructions per second.
Sampling Frequency: 48kHz.
Inputs: 2 channels on 1/4″ jacks.
Nominal Level +4dBu.
Maximum Level +20dBV.
Impedance 1Mohms per channel in stereo;500 kohms in mono.
Outputs: 2 Channels on 1/4″ jacks, Matrixed Stereo.
Maximum Level +14dBV (Effect), +20dBV (Direct).
Impedance 1K ohms.
Front Panel: Input, Output, and Programming buttons, Value Wheel, Custom LCD Display.
Rear Panel: Input L/R, Output L/R, Footswitch, Power, MIDI In, MIDI Out/Thru.
Power: 9 VAC External Transformer, UL and CSA Approved.
Dimensions: (WxHxD) 19″X1.75″X7″.
Weight: 4.5 lbs.