Shure SCM268 User Manual

Shure Incorporated
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1.
2.
Line Pad
To insert a 50 dB line pad for a given microphone input, remove the specified resistor and short the solder points at the speci
fied pc board locations. Refer to the following table:
Channel Remove Resistors: Short Solder Points:
1 R12, R13, R15 X11 and X14
2 R22, R23, R25 X21 and X24
3 R32, R33, R35 X31 and X34
4 R42, R43, R45 X41 and X44
Hot Mic Pad
Some condenser mics have a high output. In order to avoid overdriving the input stage, the user may need to set the input pot
lower than desired. To fix this problem, the user can place an 11 dB pad into the input gain stage of a selected channel.
Twist together the leads from one side of a 15 kΩ resistor and a 0.1 µF capacitor:
Solder the free ends of the resistorcapacitor combination into the holes at the jumper position indicated by the follow
ing table and remove the corresponding surface mount resistor.
Channel Remove Resistor
Insert Resistor-Capacitor Combi-
nation at Jumper
1 R18 X17
2 R28 X27
3 R38 X37
4 R48 X47

Shure SCM268 Specifications

General

Frequency range	20 - 20000 Hz
Channels quantity	4 channels
Digital sound processing	- bit
Microphone input impedance	1.2 Ω
Output impedance	870 Ω
Total Harmonic Distortion (THD)	0.25 %
DJ mixer	-
Product color	Black
Video capability	No
AC input voltage	220 - 240 V
Power consumption	30 mA
AC input frequency	50 / 60 Hz
AUX in	Yes
AUX out ports	1
Number of microphone inputs	4