SPECIFICATIONS
Specifications are subject to change without notice.
Frequency Response:
20Hz. to 40kHz. ± 1dB
Distortion:
< .025%, 20Hz to 20kHz (Mic input to any line level mixer output)
Signal to Noise Ratio:
> 90 dBu (ref. +4 dBu), all channels assigned and at unity gain
Microphone Equivalent
Input Noise:
-133.8 dBv input shorted, -131.5 dBv 150 ohms source impedance
Max. Output Level:
+28 dBu on all balanced outputs
+22 dBu on all unbalanced outputs
Max. Gain:
90 dB (Mic input to balanced main output)
84 dB (Mic input to unbalanced sub output)
Dynamic Range:
116 dB (20 Hz to 20 kHz)
Adjacent Channel Crosstalk:
-85 dB
Mic Input Gain:
50 dB
Line Input Gain:
40 dB
Channel Fader Gain:
10 dB
Channel Fader Attenuation:
106 dB
Dimensions:
Height:
6.53" (16.6cm)
Width:
MX5216
33" (84cm)
MX5224
42" (107cm)
MX5232
51" (130cm)
Depth:
24.5" (62.2cm)
Weight:
MX5216
39 lbs (17.7 kg)
MX5224
52 lbs (23.6 kg)
MX5232
65 lbs (29.5 kg)
CPSM-4 Power Supply:
Height:
4.75" (12cm)
Width:
8.5" (21.6cm)
Depth:
13.125" (33.3cm)
Weight:
17 lbs (7.7 kg)
METER CALIBRATION
METER CALIBRATION PROCEDURE
Metering of any input or output is provided by two twelve segment LED bargraphs, with VU
ballistics. The meter circuit features a peak-hold function, which makes it easier to see the
actual peak. The peak-hold function can be disabled by grounding pin 11 of U53 and U63
(LB1412) at P96. Refer to schematic MX52XX MASTER SECTION P/N 047696 sheet 4 of 4.
There is one calibration trim pot for each bargraph meter. The trim pots are accessible through
two holes located at the top of the meters. The factory setting is for 0 dBU = 0.775 VRMS.
Typical "0" meter levels:
0.775 Vrms (0 dBu)
Factory setting (For most applications this is the desired calibration).
1.228 Vrms (+4 dBu)
If mostly "Pro" equipment is connected to the mixer.
0.316 Vrms (-10 dBu) If mostly "consumer" or semi-pro equipment is connected to the mixer.
Inject a 1kHz sine wave at the desired RMS voltage level into the TAPE L, RCA (phono) jack.
Make sure none of the mixer's Solo switches are engaged.
Press the 2 TRACK PLAYBACK switch, located in the CONTROL ROOM section of the Master
module.
Adjust the trim pot so the first yellow segment of the meter just begins to turn on.
Repeat the above procedure for the right meter, using the TAPE R input.
IMPORTANT NOTE:
When using the meters in conjunction with the various Solo switches, the SOLO LEVEL
control must be turned up to maximum. This is the calibrated position to accurately
meter the solo bus level. If the SOLO LEVEL control is not at maximum, the meter
reading will be below the real output level of the soloed output.
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