M-Audio Firewire 1814 MIDI Interface

M-Audio FireWire 1814 is an 18-in, 14-out audio interface complete with ADAT Light pipe for multi-channel communication with other digital devices. M-Audio FireWire 1814 features 8 x 4 analog I/O at up to 24-bit/96kHz, and boasts 192 kHz on the first two inputs and all four outputs. Channels 1 and 2 also include high-quality microphone/instrument preamps. S/PDIF optical digital I/O provides 2-channel PCM, as well as pass-through of surround-encoded AC-3 and DTS material. An elastic internal mixing allows input and output routing, with an aux bus for effects send or monitor mix. A front-panel momentary switch allows DJ-style headphone auditioning between two convertible sources. Two headphone amplifiers, assignable level controller, S/PDIF coaxial/optical digital I/O, 1 x 1 MIDI I/O, and BNC word clock connectors for synchronization to other digital devices are some other features.

Features

18-in/14-out FireWire Audio/MIDI Interface w/ ADAT Light pipe I/O

8 x 4 24-bit/96kHz analog I/O (1/4" TS) or 2 x 4 24-bit/192kHz analog I/O

8 x 8 ADAT Light pipe I/O with S/MUX support for 4-channel 96kHz operation

Digital S/PDIF (optical/coaxial) I/O w/ 2-channel PCM

Digital out supports pass-through of AC-3/DTS surround-encoded content

Dual mic/instrument preamps (Neutrik XLR/ 1/4" TS) with input level controls, 20dB pad, phantom power and signal LEDs

Dual stereo headphone outputs with individual level controls (1/4" TRS)

Flexible software-controlled mixing of hardware and software I/O

Aux sends on all channels; aux out assign allows dedicated headphone mixes and sends to external fx

User-assignable front-panel level control (output, input, software return, aux send)

Near zero-latency hardware direct monitoring

Low-latency ASIO software direct monitoring

Momentary switch for A/B cueing 2 software-assignable headphone sources or ASIO

Monitoring on/off

1 x 1 16-channel MIDI I/O

Word clock I/O (BNC) for sync with external devices

Power on/off switch with indicator LED

Powered via FireWire bus (requires 6-pin FireWire connection) or included DC power adapter

2 convenient high-bandwidth FireWire ports

Rugged steel construction

Specifications

Line inputs (TS) 1-8

• frequency response: +/- 0.1 dB, 22Hz to 22kHz
• dynamic range: 105dB, A-weighted
• signal-to-noise ratio: -105dB, A-weighted
• THD+N: <0.00281% (-91dB)
• crosstalk: -107dB @ 1 kHz
• nominal input level: -10dBV
• maximum input level: +2.1dBV, typical
• input impedance: 10k Ohms, typical

Mic/inst. inputs (balanced) 1-2 at minimum gain

• frequency response: +/- 0.1 dB, 22 Hz to 22 kHz
• dynamic range: 105dB, A-weighted
• signal-to-noise ratio: -105dB, A-weighted
• THD+N: <0.00281% (-91dB)
• crosstalk: -105 dB @ 1 kHz ,-3.8 dBu, typical
• input impedance: inst in: 500k Ohms, typical; mic in: 1.8k Ohms, typical
• adjustable gain: > 40 dB
• pad: -20 dB
• total gain range: +60 dB

Line outputs (TRS) 1-4

• frequency response: 192 kHz: +/- 1 dB, 22Hz - 80kHz
• 96kHz: +/- 0.5 dB, 22Hz - 40kHz
• 48 kHz: +/- 0.1 dB, 22Hz - 22kHz
• dynamic range: 107dB, A-weighted
• signal-to-noise ratio: -107dB, A-weighted
• THD+N: <0.00301% (-90.5 dB)
• crosstalk: -106dB @ 1 kHz
• nominal output level: +4dBu balanced, -10dBV unbalanced
• maximum output level: +10.2dBu balanced, typical; +2.0dBV unbalanced, typical
• output impedance: 150 Ohm
• load impedance: 600 Ohm minimum

Headphone outputs at maximum volume into 32 Ohm load

• frequency response: +/- 1 dB, 22Hz to 22kHz
• power into Ohms: 16 mW into 32 Ohms
• THD+N: <0.04987% (-66.1 dB)
• signal-to-noise ratio: -96 dB, A-weighted
• max output level into 32 Ohms: -3.0dBV, typical
• output impedance: 75 Ohm
• load impedance: 32 to 600 Ohms

Word clock

• output: up to 192kHz
• input: up to 96kHz
• pass-through I/O: up to 96kHz
• impedance: 75 Ohms
• analog sampling rates: 44.1kHz to 192kHz for analog input 1/2 and all analog outputs
• 44.1kHz to 96kHz input on channels 3-8
• digital sampling rates (kHz): 44.1, 48, 88.2, and 96 for coaxial S/PDIF in and out
• 44.1 and 48 for optical S/PDIF in & out
• 44.1, 48, or 88.2, 96 for ADAT I/O in S/MUX mode