The ProFire Lightbridge interfaces up to four Lightpipe devices with a PC or Mac via FireWire—perfect for integrating digital mixers, AD/DA converters and/or ADATs with most popular DAW software. The unit is capable of 32 channels of Lightpipe I/O, two channels of S/PDIF I/O and two-channel analog output for a total of 34 x 36 concurrent channels at 44.1 or 48kHz sample rates. (It also supports 16-channel Lightpipe operation at 88.2 and 96kHz sample rates via the S/MUX protocol.) The ProFire Lightbridge can output word clock as a master, or slave to external sync on any input, and MIDI I/O also accommodates MIDI Time Code and MIDI Machine Control. Independent volume controls are provided for the ¼” balanced outputs and front panel ¼” headphone jack. The ProFire Lightbridge is compatible with most DAW software including Pro Tools M-Powered 7.3 and higher*.

* Pro Tools M-Powered currently supports a maximum of 18 simultaneous inputs and outputs.

FULL FEATURES

32-channel Lightpipe I/O at 44.1 or 48kHz
16-channel Lightpipe I/O at 88.2 or 96kHz using S/MUX
S/PDIF I/O (via included breakout cable, coax)
two 1/4” TRS analog outputs with dedicated level control
all analog and digital I/O active simultaneously (total of 34 x 36 concurrent channels at 44.1 or 48kHz; 18 x 20 at 88.2 or 96kHz)
word clock I/O (via included breakout cable, BNC)
MIDI I/O (via included breakout cable)
1/4” front-panel headphone out with dedicated level control
up to 24-bit/96kHz operation
FireWire connectivity to computer
indicators for sample rate, Lightpipe I/O, MIDI I/O, sync source and power
Kensington lock slot
half-space rack chassis, optional mounting tray
compatible with most major DAWs including Pro Tools M-Powered 7.3 and higher
* Pro Tools M-Powered currently supports a maximum of 18 simultaneous inputs and outputs.

SPECIFICATIONS
D/A Converters 44.1, 48, 88.2, 96kHz
Supported Bit Rates 16-bit, 24-bit
Digital Inputs 4 optical Lightpipe
stereo coaxial S/PDIF
Digital Audio Outputs 4 optical Lightpipe
stereo coaxial S/PDIF
Line Outputs 1/4” TRS balanced/unbalanced
Output Impedance 300 ? balanced/150 ? unbalanced
Maximum Output Level +10.2dBu (2.5 Vrms) balanced
+2.0dBV (1.26 Vrms), unbalanced
Channel-to-Channel Crosstalk < -110dB @ 1kHz
SNR -109dB, A-weighted
Dynamic Range 109dB, A-weighted
THD+N 0.00127 % (-98dB) @ -1dBFS, 1kHz
Frequency Response 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample rate
20Hz to 40kHz, +/- 0.2dB @ 96kHz sample rate
Headphone Output
Maximum Output -3.0dBV (1.71 Vrms) into 32 ?
Working Range 32 to 600 ?
Impedance 75 ?
Crosstalk < -85dB
THD+N 0.011% (-79dB) @ -1dBFS, 1kHz
SNR -108dB, A-weighted
Dynamic Range 108dB, A-weighted
Frequency Response 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample rate
20Hz to 40kHz, +/- 0.2dB @ 96kHz sample rate
*48kHz sampling rate unless otherwise stated

COMPATIBILITY
Pro Tools M-Powered 7.3 and higher
ASIO II
WDM
Core Audio
GSIF II

MINIMUM SYSTEM REQUIREMENTS (PC)
16 channels of ADAT Lightpipe at 16-bit/44.1kHz
Pentium IV 1.8 GHz
512 MB RAM
7200 rpm HD (8 MB buffer)
Available FireWire port or FireWire expansion card
Windows XP (SP2)*

Recommended System Requirements
32 channels of ADAT Lightpipe at 24-bit/48kHz or 16 channels of ADAT Lightpipe S/MUX at 24-bit/
96kHz
Pentium IV 2.8 GHz
1 GB RAM
7200 rpm HD (16 MB buffer)
Available FireWire port or FireWire expansion card
Windows XP (SP2)*
* Home and Professional Edition only. Windows Media Center Edition is not currently supported.

MINIMUM SYSTEM REQUIREMENTS (MAC)
16 channels of ADAT Lightpipe at 16-bit/44.1kHz
Power Mac G4 1 GHz
(G4 accelerator cards not supported)
512 MB RAM
7200 rpm HD (8 MB buffer)
Native FireWire port
Mac OS X 10.3.9 / 10.4.7
Recommended System Requirements
32 channels of ADAT Lightpipe at 24-bit/48kHz or 16 channels of ADAT Lightpipe S/MUX at 24-bit/
96kHz
Power Mac G5 Dual 1.8 GHz
1 GB RAM
7200 rpm HD (16 MB buffer)
Available FireWire port
Mac OS X 10.3.9 / 10.4.7