• "Chassis dimensions, excluding rack ears and front and back panel knobs and connectors: 9.5"" x 7"" x 1.75"" (24.13cm x 17.78cm x 4.45cm)Knobs and connectors extend up to 0.5"" (1.27cm) from front and back panels, adding 1"" (2.54cm) to depthWith rack ears attached, fits one half of a standard 19"" (48.26cm) rack at 1U high6-input, 6-output audio interface for Mac and Windows6 x 8 physical input/output channels: all channels are available simultaneously and operate independentlyHybrid FireWire.
• "Knobs and connectors extend up to .5"" (1.27cm) from front and back panels, adding 1"" (2.54cm) to depth".
• "With rack ears attached, fits one half of a standard 19"" (48.26cm) rack at 1U high6-input, 6-output audio interface for Mac and Windows".
• 6 x 8 physical input/output channels: all channels are available simultaneously and operate independently.
• Hybrid FireWire/USB 2. connectivity so you can connect to your Mac or PC via either bus-powered Firewire or hi-speed USB2.

"Thanks to MOTU's Hybrid interface technology, the Audio Express connects to any current Mac or PC via FireWire or high-speed USB 2.0. Connect your mic, guitar, keyboard, and digital input, and you are ready to make pro-quality s in your personal studio. It lets you quickly glance the levels of your mic, guitar, keyboard, and a S/PDIF device, right from the front panel. Each instrument has its own volume control. Route inputs directly to any output pair, each with its own unique mix: main outs, line outs, S/PDIF out, and phones.Simplicity by designConnect your powered speakers. Plug in your instruments. Adjust their volumes with the front panel knobs. Double-click to install the drivers. What could be easier? The Audio Express is designed to be simple to use, so you can focus on your music and performance.Studio-grade soundThe Audio Express delivers MOTU's renowned, award-winning audio interface technology to your personal studio with the pristine audio quality, advanced engineering, and rock-solid performance that MOTU interfaces are known for worldwide.MixingYou can use the Audio Express 8-bus digital mixer on stage for live performance, in your personal studio without a computer, or together with your host audio software as a low-latency monitor mixer. It gives you immediate, hands-on control of your mix using the front-panel knobs and status LEDs. To adjust the volume of an input, just turn its knob. The Audio Express lets you control mix volume independently from the input's trim level, so you never have to sacrifice sound quality for a balanced mix.A separate mix for each output pairThe Audio Express mixer takes signals from its six inputs and mixes them to an output pair, such as the main outs. You control the volume of each input. Better yet, you can adjust input volumes differently for each output pair. In other words, each output pa"