ART TubeOpto 8 Eight Channel Microphone Preamp with ADAT

ART TubeOpto 8 Eight Channel Microphone Preamp with ADAT Overview: The ART TubeOpto 8 is the ideal Eight Channel input / output expander for any ADAT lightpipe equipped audio interface, direct-to-disc recorder or DAW Eight high quality second generation discrete Class-A vacuum tube microphone preamps are packaged in a single rack space unit with eight channel 24-bit digital I/O.

Every input on the TubeOpto8 offers full control of the signal path with pad, phase and low frequency roll-off switches Input gain and variable output level control of each channel allows up to 70dB of clean gain with incredible sonic transparency or for the tube stage to be dialed in for warming effects and soft clipping.

Each channel has wide range LED meters monitor the preamp output levels while clip indicators monitor mic-preamp peak levels ADAT lightpipe I/O handles eight channels of 24-bit audio input and output at either 44.1 or 48 kHz sample rates.

Wordclock in and thru-puts allow multiple Tubeopto8's to be synced in complex system configurations Features: Eight Fully Featured Class-A Tube Mic Preamps Eight Channels of ADAT lightpipe Digital 24 Bit Audio I/O at 44.1 or 48kHz Input Gain and Output Level Controls on Every Channel Input Pad, Phase flip and Low Frequency Roll Off Switches on Every Channel Two Additional Front Mounted High Impedance Instrument Line Inputs Eight 1/4-inch TRS Balanced Outputs Specifications: Input Impedance Mic: 6.4K Ohm Line: 20K Ohm Instrument: 2.5M Ohm Output Impedance Balanced outputs: 200 Ohm balanced Frequency Response Analog in to Digital out: 12Hz - 20KHz +0, -1dB @ 44.1 KHz sample rate THD 1KHz: < .015% @ -30dB ref clipping 20-20KHz: < .033% HPF: 80Hz, 1-pole Equivalent Input Noise Mic/Line: -130dBu, input shorted, max gain, “A” wtd.

Instrument: -105dBu, input shorted, max gain, “A” wtd Maximum Input Level Mic/line: +18dBu balanced w/pad Instrument: +15dBu Meter clip light: -2dB ref.

A/D clip (0dB FS) Maximum Gain Mic: 64dB Instrument: 36dB Maximum Output level Balanced: +20dBu (+4dBu setting) Unbalanced: +14dBu (+4dBu setting) Output level switch: Lowers output by 10dB @ -10dBV setting Wordclock Range: 40KHz - 52KHz Sample Rate Settings: 44.1KHz, 48KHz, ADAT, Wordclock A/D Dynamic Range: 105dB (“A” wtd.) D/A Dynamic Range: 105dB (“A” wtd.) A/D Latency: 0.667ms(48KHz), 0.725ms(44.1KHz), 32 samples D/A Latency: 0.458ms(48KHz), 0.500ms(44.1KHz), 22 samples Dimensions: 1.75”H x 19.0”W x 14.4”D (44.5mm x 482.6mm x 365.8mm) Weight: 13.2 lbs (6kg) Minimum System Requirements: ADAT interface port.