MOTU 896HD User's Guide download pdf (Page 10)

ABOUT THE 896HD

■

Two XL R main analog outputs with volume

knob (on the front panel)

■

One 9-pin ADAT SYNC IN connector

■

BNC word clock input and output

■

Tw o 1394 FireWire jacks

18 inputs and 22 outputs

All 896HD inputs and outputs can be used simulta-

neously, for a total of 18 inputs and 22 outputs at

44.1/48kHz:

All inputs and outputs are discrete. In other words,

using the main outs does not “steal” an output pair

from the bank of eight XLR analog outputs. The

same is true for the headphone outs.

The ADAT optical ports provide 4 channels of I/O

at 88.2 or 96kHz. They are disabled at the 4x

sample rates (176.4 and 192kHz).

The headphone output can operate as an

independent output pair, or it can mirror any other

896HD output pair, such as the main outs.

Analog

All 10 analog inputs are equipped with 24-bit

192kHz, 64x oversampling A/D converters. All 12

analog outputs have 24-bit 128x oversampling D/A

converters. All audio is carried to the computer in a

24-bit data stream. Each output can be individually

switched between either +4 or -10dB operation.

Each input can be individually set to one of three

input levels: MIC (feeds the mic preamp and

includes front-panel trim and switchable 48V

phantom power), LINE (for -10dB inputs with

front-panel trim) and +4/FIXED (for +4 “hot”

inputs for which no gain adjustment in the 896HD

is desired).

Mic preamps

All eight analog inputs are equipped with a mic

preamp on a Neutrik™ combo-style connector that

accepts either an XLR or quarter-inch plug.

Defeatable 48V phantom power is supplied by a

front panel switch. In addition, each input has its

own trim knob, which provides a trim range of

approximately 40dB.

Main Outs

The main outs are equipped with 24-bit 192kHz

128x oversampling D/A converters and serve as

independent outputs for the computer or for the

896HD’s on-board CueMix DSP mixes. The main

out volume can be controlled with the front panel

volume knob (when the switch is in the

Main Outs

+ Phones

position).

Optical

The 896HD optical jacks support the industry

standard ADAT optical format, which provides

eight channels of 24-bit digital audio at either 44.1

or 48 kHz, and four channels at 88.2 or 96kHz.

AES/EBU with sample rate conversion

The 896HD rear panel provides a standard AES/

EBU digital input and output that supports digital

I/O at 44.1, 48, 88.2 and 96 kHz. In addition, input

or output can be sample-rate converted to any of

these sample rates in situations that call for a

different rate than the 896HD’s global sample rate.

The AES/EBU jacks are disabled at the 4x sample

rates (176.4 and 192kHz).

ADAT sync: sample-accurate synchronization

The 896HD’s standard 9-pin ADAT SYNC IN

connector provides sample-accurate synchroni-

zation with all Alesis ADAT tape decks connected

Connection Input Output

24-bit 192kHz XLR analog 8 8

24-bit 192kHz XLR main outputs - stereo

Headphone output - stereo

ADAT optical digital (at 44.1 or 48kHz) 8 8

AES/EBU 24-bit 96kHz digital stereo stereo

Total 18 22

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 104 105

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MOTU 896HD User's Guide Page 10

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