User Manual

LIO-8 Users Guide

• Monitor Control Section:

• The Mute and Dim buttons provide instant access to simple level control for the selected Monitor

path or headphone output. The Mute button provides a quick, tactile “panic switch” which mutes

the monitors or front panel headphone output in case of accidental feedback loops and other audio

unpleasantries. The Dim button attenuates the selected path by 20 dB.

• The Monitor Control encoder provides front panel adjustment for your audio. By pressing the encoder,

it can toggle between affecting the Monitor Control section or headphones. There are two multicolor

LEDs below the encoder that indicate which path the encoder is modifying as well as mute and dim

status.

The LIO-8 front panel also provides access to the Headphone output. The headphone output jack is a TRS 1/4”

jack that provides the Left Channel on the tip, the Right Channel on the ring and the ground return for the two

channels on the sleeve. These signals are all ground referred, so they may also be split and fed single-ended

(unbalanced) to an external audio device.

The LIO-8 headphone output is suited to a wide range of impedances. Headphones with lower impedance

would be expected to get louder than those with higher impedance.

There are two DI inputs on the front panel, which are paralleled with Line inputs 1 and 2. The DI inputs can

provide 0, 10, or 20db of gain selectable via internal jumpers.

More information regarding the front panel can be found in the ULN/LIO-8 Front Panel Guide.

LIO-8 Rear Panel

Figure 7.10: LIO-8 Rear Panel

The LIO-8 rear panel features:

• 4 pin XLR DC power jack (14v - 28v, 32 Watts)

• 8 channels balanced line inputs on DB25. Each input has:

• -12 dB to +31.5 dB of gain range

• Dynamic Range (-60 dB, flat 0-22.05 kHz, typ): 115 dB

• +0/-1.0dB @ fs = 192KHz: 1.8 Hz - 64.7 kHz

• Noise Floor (flat 0-22.05 kHz, typ): 115 dB

• 8 channels balanced line level sends on DB25 that mirror the analog inputs

• 8 channels balanced line/monitor outputs on DB25. Each output has:

• 24-bit 192kHz D/A converters (120dB SNR)

• Gain range from -96 dB to +30 dB

• Outputs 1 and 2 are also multed to 1/4" TRS connectors

• 8 channels AES digital I/O on DB25

• Single wire mode for full 8 channels at 44.1-192KHz operation

• Expansion Port for DB-25 for 4 or 8 channels of Mic Pre (field installable)

• Wordclock input/output on BNC connectors at 1x or 256x rates

• MIDI I/O to connect a control surface to MIO Console

• SMPTE input and output on 1/4" TRS

• Kensington security slot