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Repair
Service for the CFX Series mixers is avail-
able only at our factory, located in sunny
Woodinville, Washington. Service for Mackie
mixers living outside the United States can be
obtained through local dealers or distributors.
If your mixer needs service, follow these in-
structions:
1. Review the preceding troubleshooting
suggestions. Please.
2. Call Tech Support at 1-800-258-6883, 8am
to 5pm PST, to explain the problem and
request an RA (Return Authorization)
number. Have your mixer’s serial number
ready. You must have an RA number before
you can obtain service at the factory.
3. Keep this owner’s manual. We don’t need it
to repair the mixer.
4. Pack the mixer in its original package,
including endcaps and box. This is very
important. When you call for the RA
number, please let Tech Support know if
you need new packaging. Mackie is not
responsible for any damage that occurs
due to non-factory packaging.
5. Include a legible note stating your name,
shipping address (no P.O. boxes), daytime
phone number, RA number, and a detailed
description of the problem, including how
we can duplicate it.
6. Write the RA number in
BIG PRINT on
top of the box.
7. Ship the mixer to us. We suggest insurance
for all forms of cartage. Ship to this
address:
Mackie Designs
SERVICE DEPARTMENT
16140 Wood-Red Rd. NE, Ste. 5
Woodinville, WA 98072
8. We’ll try to fix the mixer within five
business days. Ask Tech Support for
current turn-around times when you call
for your RA number. We normally send
everything back prepaid using UPS OR-
ANGE (three-day air). However, if you rush
your mixer to us by Next Day Air, we’ll treat
it in kind by shipping it back to you the
same way in which it was received. This
paragraph does not necessarily apply to
non-warranty service.
APPENDIX B: Technical Info
Specifications
CFX•12, CFX•16, CFX•20
Mixer Section
Frequency Response
Mic Input to any Output (Trim at 0 dB):
+0, –1 dB, 32Hz to 20kHz
Distortion
THD and SMPTE IMD; 20Hz to 20kHz
Mic Input to Main Output:
< 0.05% @ +4 dBu output
Noise
20Hz to 20kHz BW (150Ω source impedance)
Equivalent Input Noise (EIN):
–127 dBu
Residual Output Noise:
Main, Monitor, & Effects outputs
Channel & Master levels off
–95 dBu
Common Mode Rejection Ratio (CMRR)
60 dB @ 1kHz, Trim @ 0 dB
Crosstalk
Adjacent Inputs or Input to Output:
–90 dB @ 1kHz
Fader Off
–90 dB @ 1kHz
Mute Switch and Break Switch Mute
–80 dB @ 1kHz
Input Level Trim Control Range
+6 to –50 dB
Phantom Power
+48V DC
Equalization
Low Cut: 100Hz, –18 dB/octave
Mono Channel EQ:
High ±15 dB @ 12kHz
Mid ±15 dB @ 100Hz to 8kHz
Low ±15 dB @ 80Hz
Stereo Channel EQ:
High ±15 dB @ 12kHz
High Mid ±15 dB @ 3kHz
Low Mid ±15 dB @ 400Hz
Low ±15 dB @ 80Hz
Graphic EQ (9 bands):
Q = 1.414, ISO octave centers
±15 dB @ 63, 125, 250, 500, 1k, 2k, 4k, 8k, 16k Hz
Mixer Rated Output
Main, Sub, Aux, & Efx: +4 dBu
Maximum Rated Output: +20 dBu
Maximum Input Levels
Mic Input: –28 dBu, Trim @ +50 dB
+18 dBu, Trim @ +6 dB
Line Input: –8 dBu, Trim @ +30 dB
+38 dBu, Trim @ –15 dB
Insert Input, Stereo Line Input, Tape Input, and
Effects Return: +20 dBu