Specifications |
Frequency Response (Ref 1 kHz, controls centered) |
Microphone Inputs: 150 Hz to 20 Khz + 2 dB (built-in 80 Hz low-cut)
Auxiliary Inputs: 20 Hz to 20 kHz + 2 dB |
Low-Cut Filter (Microphone inputs only) |
3dB down at 80 Hz, 6 dB/octave |
Gain (typical, controls full clockwise) Output Mic |
Low-impedance mic (150 O) |
38 dB |
Aux Level |
3 dB |
Gain (typical, controls full clockwise) Output Line |
Low-impedance mic (150 O) |
76 dB |
Aux Level |
40 dB |
Gain (typical, controls full clockwise) Aux Out |
Low-impedance mic (150 O) |
65 dB |
Aux Level |
29 dB |
Output Impedance Mic |
low-Z inputs |
0.2 O |
-21 dBV |
Output Impedance Line |
>600 O |
72 O |
+18 dBV |
Output Impedance Aux Out |
>2 kO |
870 O |
+7 dBV |
Outputs |
Total Harmonic Distortion |
<0.25% at +4 dBu output level (through 22 Hz–22 kHz filter; Input
1 and Master centered, all other controls full counter clockwise) |
Hum and Noise |
(150 O source; through 22 Hz–22 kHz filter)
Equivalent Input Hum and Noise: –124 dBV |
Output Hum and Noise |
(through 22 Hz–22 kHz filter; channel controls full counterclockwise)
Master full counterclockwise: –92 dBV
Master full clockwise: –70 dBV |
Common Mode Rejection |
>80 dB at 1 kHz |
Polarity |
All inputs to all outputs are non-inverting |
Overload and Shorting Protection |
Shorting outputs, even for prolonged periods, causes no damage
Microphone inputs are not damaged by signals up to +10 dBV;
Auxiliary inputs by signals up to +36 dBV |
|
Phantom Power |
12 Vdc open-circuit through 340O series resistance |
Operating Voltage |
SCM268: 100-120 Vac rated nominal, 50/60 Hz, 60 mA
SCM268E: 220-240 Vac rated nominal, 50/60 Hz, 30 mA |
Temperature Range |
Operating: –7° to 49° C (20° to 120° F)
Storage: –29° to 74° C (–20° to 165° F) |
Overall Dimensions |
44 mm H x 218 mm W x 162 mm D
(1.72 x 8.60 x 6.37 inches) |
Net Weight |
1.20 Kg (2 lbs, 10 oz) |
Certifications |
SCM268: UL & cUL Listed by Underwriters Laboratories, Inc.
SCM268E: Eligible to bear CE Marking. Conforms to European
EMC Directive 89/336/EEC. Meets applicable tests and performance criteria in European Standard EN55103 (1996) parts 1
and 2, for residential (E1) and light industrial (E2) environments. |
REPLACEMENT PARTS |
Knob, Master (blue) |
95B8752 |
Knob, Channel Gain (white) |
95A8752 |
Line (Power) Cords (SCM268E: 220-240 Vac (EU)): |
95A8778 |
Fuse, SCM268 (5x20 mm, 250V, 80mA, slow-blow) |
80A730 |
Fuse, SCM268E (5x20 mm, 250V, 40mA, slow-blow) |
80J258 |
Hardware Kit |
90AA8100 |
Link Bars (Bracket) |
53A8443 |
Single Mount Kit |
53A8484 |
Dual Mount Kit |
53B8484 |
Optional Accessories Line (Power) Cord,
230-240 Vac (UK) |
95A8713 |
Line (Power) Cord, 230-240 Vac (UK) |
95A8713 |