Mackie ProFX8 User Manual
29
Owner’s Manual
Owner’
s Manual
Appendix C: Technical Information
Specifi cations
Noise
20 Hz – 20 kHz, 150 Ohm Source Impedance
Equivalent Input Noise
(Mic in to Insert Send out, max gain)
Equivalent Input Noise
(Mic in to Insert Send out, max gain)
-127 dBu
Residual Output Noise
(All outputs, master levels off, all channel levels off)
-95
dBu
(All outputs, master levels unity, all channel levels off)
-90
-90
dBu
(All outputs, master levels unity, one channel level unity)
-85
-85
dBu
Distortion
20 Hz – 20 kHz
THD+N, SMPTE IMD
(Mic input to Main output) <0.05% @ +4 dBu output
THD+N, SMPTE IMD
(Mic input to Main output) <0.05% @ +4 dBu output
Common Mode Rejection Ratio
1 kHz
(Mic input to Insert Send output) 60 dB gain at unity
(Mic input to Insert Send output) 60 dB gain at unity
Frequency Response
20 Hz – 30 kHz
(Mic input to any output, gain at unity) +0 dB/-1 dB
(Mic input to any output, gain at unity) +0 dB/-1 dB
Crosstalk
20 Hz – 20 kHz
Adjacent Inputs
Adjacent Inputs
-90 dB @ 1 kHz
Inputs to Outputs
-90 dB @ 1 kHz
Fader Off
-90 dB @ 1 kHz
Mute Switch/Break Switch Mute
-90 dB @ 1 kHz
Maximum Levels
All Inputs
+22 dBu
Main Mix XLR
+28 dBu
All other outputs
+22 dBu
Impedances
Mic in
3 kilohms
Channel Insert return
10 kilohms
Ch 1 Instrument Input
1 Megaohm
All other inputs
20 kilohms
Tape out
1.1 kilohms
Phones out
25 ohms
All other outputs
120 ohms
Maximum Voltage Gain (EQ Flat)
Mic Input Channel to
Insert Output
50 dB
Tape Output
60 dB
USB Output
60 dB
¼ Inch Main Output
70 dB
XLR Main Output
76 dB
Monitor Send
75 dB
FX Send
90 dB
Mono Line Input Channel to
Insert Output
30 dB
Tape Output
40 dB
USB Output
40 dB
XLR Main Output
56 dB
Monitor Send
55 dB
FX Send
70 dB
Stereo Line Input Channel to
Tape Output
30 dB
USB Output
30 dB
XLR Main Output
46 dB
Monitor Send
45 dB
FX Send
60 dB
Tape Input to
Tape Output
20 dB
USB Output
20 dB
XLR Main Output
36 dB
USB Input to
Tape Output
20 dB
USB Output
20 dB
XLR Main Output
36 dB
Stereo Return to
Tape Output
10 dB
USB Output
10 dB
XLR Main Output
26 dB
Effects Return to
Tape Output
10 dB
USB Output
10 dB
XLR Main Output
26 dB
Monitor Send
25 dB
Channel EQ
Low Cut
100 Hz, -18 dB/Octave
High Shelving
±15 dB @ 12 kHz
Mid Peaking
±15 dB @ 2.5 kHz
Low Shelving
±15 dB @ 80 Hz
Digital Effects
I/O Mono
Input/Stereo
Output
Number of Presets
16 Mackie-designed presets
Channel Level Set LED
0 dBu (normal operating level)
Channel OL LED
-1 dB before channel clipping
Measured post EQ, pre fader
Measured post EQ, pre fader