The 1622 I/O provides a high-quality, cost-effective solution for those wishing to incorporate line-level devices into Pro Tools. The 1622 I/O provides 16 balanced or unbalanced inputs with 20-bit A/D conversion using 1/4" TRS connectors, and two analog outputs with 24-bit D/A conversion. A S/PDIF port capable of 24-bit digital I/O allows you to connect DAT recorders, CD players and other digital recording media. Each input on the 1622 I/O has software-controllable gain to accommodate a wide variety of synthesizer, sampler, and effects unit output levels. These levels are stored in the memory of the 1622 I/O even when the unit is powered off. The 1622 I/O in conjunction with Pro Tools software also acts as a virtual patch bay, enabling you to change connections with just one click.

Technical specifications

Features High-quality, low-priced I/O for instruments and effects gear
16 20-bit analog inputs and two 24-bit analog outputs
2 channels of 24-bit S/PDIF I/O
Software-controllable gain on all inputs; outputs switchable between +4 dBu and –10 dBV
Greater than 100 dB dynamic range (+4 dBu operating level)
Support for balanced and unbalanced connections
1/4" TRS connectors
Front-panel LEDs for input and output metering
Multiple units provide up to 72 discrete inputs




Specifications

A/D 20-bit A/D converters
Dynamic Range: 99 dB (A-weighted) @ 22 Hz – 22 kHz bandwidth
THD+N: < 0.004% @ 1 kHz, 1 dB, 20 Hz – 20 kHz
Frequency Response: @ 1 kHz, 20 Hz – 20 kHz, +/- 0.5dB

D/A 24-bit D/A converters
Dynamic Range: (DAC input level = 0 dBFS), 105 dB
THD+N: (DAC input level 0 dBFS), 20 Hz – 20 kHz < 0.003%
Frequency Response: @ 1 kHz, 20 Hz – 20 kHz, +/- 0.5 dB

Misc. S/PDIF resolution: 24-bit
Maximum input and output level (software controllable): +18 dBu