Specifications
Multimix 12R Reference Manual 45
SPECIFICATIONS
All measurements taken with an Audio Precision System One. All noise
measurements taken with trim at minimum and faders at unity gain with 22
Hz to 22 kHz bandwidth unless otherwise specified. All In & Out
measurements made on balanced +4 dBu connectors. (+4 dBu into a line
input with faders at unity and the meter reading “0” will yield +4 dBu into a
balanced load or -2 dBu into an unbalanced load.)
Frequency Response
10 Hz – 65 kHz +0/-1 dB (any input to any output at
nominal operating levels)
-3dB Point: 125 kHz
Connectors
MIC IN jacks: Female XLR
(Pin 1 ground, Pin 2 +, Pin 3 -)
LINE IN jacks: Female 1/4" 3-conductor phone
(Tip = +, ring = -, sleeve =
ground)
INSERT jacks: Female 1/4" 3-conductor phone
(Tip = send, ring = return, sleeve
= ground)
Inserting plug to first "click"
allows direct output without
breaking normal signal flow
STEREO LINE IN and
STEREO AUX RETURN jacks: Female 1/4" 3-conductor x 2
MAIN OUT BALANCED,
MONITOR OUT, and
AUX SEND jacks: Female 1/4" 3-conductor phone
(Tip = +, ring = -, sleeve =
ground)
MAIN OUT -10 dBV jacks: Female phono ("RCA") jacks
TAPE IN jacks: Female phono ("RCA") jacks
Specifications
Levels
MIC IN -60 dBu to -10 dBu nominal,
maximum level +12 dBu
LINE IN -40 dBu to +10 dBu nominal,
maximum level +32 dBu
(balanced)
STEREO LINE IN -15 dBu to +15 dBu nominal,
maximum input level +22 dBu
MAXIMUM GAIN +76 dB, MIC IN to MAIN OUT,
balanced
+80 dB, MIC IN to MONITOR
OUT, balanced or unbalanced
CHANNEL PEAK LED ON: 6 dB below channel clipping
METER: Peak type
-24 dB to PK (+18 dB over
reference at MAIN OUT, 6 dB
before output clipping)
MAIN OUT LEVEL (1/4" phone jacks) (when meter is at 0 VU)
+4 dBu (1.24 volts)
into a balanced load
-2 dBu into an unbalanced load
MAIN OUT LEVEL (phono jacks) -10 dBV (.316 volts) unbalanced
MAXIMUM OUTPUT LEVEL +22 dBu unbalanced, +28 dBu
balanced (6 dB above "PK"
segment of main meter)
MONITOR OUT LEVEL Same as above, but variable
following MONITOR/PHONES
control
INSERT/DIRECT OUT (tip) Unity gain
INSERT IN (ring) Maximum level +22 dBu
HEADROOM: 23.5 dB above nominal output
Impedance
MIC IN 50-150 Ω nominal source
impedance (presents 4 k Ω
balanced load impedance)
LINE IN 600 Ω-2 k Ω nominal
(>20 k Ω load impedance)
OUTPUTS (MAIN, AUX and
MON): 150 Ω unbalanced,
300 Ω balanced
1.1 k Ω
at -10dBV MAIN OUTS