ATI Audio MX100C 운영 및 유지보수 매뉴얼 - 페이지 6

{카테고리_이름} ATI Audio MX100C에 대한 운영 및 유지보수 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. ATI Audio MX100C 17 페이지. Mono output mixers and input expander

load will be driven with equal and anti-phase levels on the HI and LO output

lines. An unbalanced (one side grounded) load will cause the driver IC to shut off

the signal output to the grounded side of the load and double the output level ap-

plied to the other side, thus maintaining equal output to either type of load. The

output stage will drive loads of 600 ohms and higher. Nominal output is +4dBm

with clipping at +22dBm into balanced loads. Maximum output at clipping is re-

duced by 6dB when driving an unbalanced load, since the full output swing of on-

ly one driver is available. A jumper plug, P1, located just behind the output XLR

connector selects either +4dBm line level or -50dBm microphone level output.

HEADPHONES

A front panel 1/4" TRS (stereo) jack and thumbnail-adjust gain control provides a

monaural, in-phase signal to both sides of a set of stereo headphones. Only ste-

reo headphones should normally be used with the MX100; however, mono

phones can be used in a pinch at reduced levels. The headphone output pro-

vides 100mW to phones of up to 600 ohm impedance and reduced levels into

higher impedance phones. On the MX101, a panel switch can select a split lis-

tening mode which allows a pre-fade listen feed to one ear either from Mixer In-

put 1 or from an external director's cue fed thru a rear 2.5mm Tip-Sleeve jack.

Inserting a plug into the rear cue jack interrupts the feed from Mixer Input 1. The

cue headphone level is adjusted with an internal trimpot, R84, and is not affected

by the front panel headphone level adjustment.

LED METERING

A ten segment, three color LED bargraph display meters the output with a VU

average response characteristic. Internal meter calibration pot R70 sets the 0VU

meter reference to +4dBm output level and is adjustable to read 0VU for outputs

from -10 to +8dBm.

The MX101 and the MX100C incorporate a low distortion optical compressor with

a front panel switch and peak indicating LED. The compressor threshold adjust-

ment, R76, is factory set for a sine wave threshold at +3VU meter indication. The

threshold setting is independent of the actual mixer output level.

SLATE MICROPHONE AND TEST TONE OSCILLATOR

The MX101 includes a sensitive slate microphone built into the front panel with a

momentary switch to activate it. The compact nature of the MX101 precluded a

ATI Audio Inc.

■ Tel: 856-626-3480

Fax: 856-504-0220

www.

audio.com

■