Alesis Midiverb4 Dual-Channel Effects Processor

True dual-channel 18 bit signal processor
Stereo, dual mono, or cascaded operation
Auto Level Sensing for optimum input gain control, insures the best possible bandwidth, frequency response, and signal to noise ratio
18 bit 128-times oversampling A/D and 18 bit 8x oversampling D/A converters, 20 bit internal, 20 bit DSP engine
Custom backlit LCD display for easier programming than any other instrument in its class--four parameters may be displayed simultaneously, with a front-panel value encoder for editing
128 factory presets, 128 user-editable programs
Reverb, delay, chorus, flange, pitch shifting, Lezlie, auto pan, and special effects
Several multieffect chains are available (delay>reverb, pitch>reverb, pitch>delay>reverb, etc.)
1.3 seconds total delay time available
Completely programmable
Completely MIDIable for realtime control of parameters
MIDI mapping so that you can access any of its 256 preset locations with any of the 128 MIDI program change numbers
MIDI IN and OUT jacks with soft thru function
1/4" unbalanced ins and outs.

Frequency Response: 20Hz-20kHz ±1dB
Dynamic Range: >90dB
Harmonic Distortion: .01% typical @1kHz @ 0dBV
Digital Conversion Scheme: 18-bit Delta Sigma
Processor Speed: 3 million instructions per second
Sampling Frequency: 48kHz
Front Panel: Input, Output, and Programming buttons; Value Wheel; Custom LCD Display
Processor Type: Multi-FX
Number of Channels: 2
Presets: 128 Factory
Presets: 128 User
Analog Inputs: 2 x 1/4" TS
Analog Outputs: 2 x 1/4" TS
Digital Inputs: No Digital Inputs
Digital Outputs: No Digital Outputs
Other I/O: MIDI In/Out/Thru
Computer Connectivity: No Computer Connectivity
Rackmount Spaces: 1U