
TECHNICAL SPECIFICATIONS
SM-3512U SM-3520U
CHARACTERISTICS Professional 12-channel mixer with 2
outputs, with independent volume
controls.
Professional 20-channel mixer with 2
outputs with independent volume
controls.
USB/SD/MP3 player.
16 digital effects processor.
USB PLAYER MP3 file player
USB port for USB drive connection
SD card reader
Supports drives up to 8 GB
ID3 tag
INPUTS 8 balanced XLR mics., 150 Ω 2 mV RMS
or 8 balanced lines, 6.3 mm jack,
20,000 Ω 25 mV RMS
2 stereo lines, 2 x 6.3 mm jack, 20,000 Ω
3 V RMS
2 balanced stereo returns, 2 x 6.3 mm
jack, 20,000 Ω 3 V RMS
1 tape input, 2 x RCA, 20,000 Ω 1 V RMS
16 balanced XLR mic., 150 Ω 1.5 mV RMS
or 16 balanced lines, 6.3 mm jack,
20,000 Ω 150 mV RMS
2 stereo lines, 2 x 6.3 mm jack, 20,000 Ω
150 mV RMS
2 balanced stereo returns, 2 x 6.3 mm
jack, 20,000 Ω 1 V RMS
1 tape input, 2 x RCA, 20,000 Ω 150 mV
CONTROLS Mic./line: Bass suppression filter (18 dB, 75 Hz), gain, bass (±15 dB, 80 Hz), mid
(±15 dB, 2,500 Hz), treble (±15 dB, 12,000 Hz), aux send, EFX send, pan, mute-alt
3-4, PFL and sliding volume
USB/SD player: play/pause, stop, repeat, fast forward and rewind and allocation to
channel 11/12
Main: sliding volume
Alt-3-4: sliding volume
Control Room/Phones/LED indicator: source selection and volume
CD/Tape: allocation to the main output
Aux send: volume control
Aux returns: volume control and allocation to main/alt 3-4
Effects processor: effect selection
FUNCTIONS Cueing through PFL headphones, assignable to each channel
Sliding controls per channel
3-band equalizer per channel
LED indicator for excess signal and master output level
OUTPUTS Master (balanced, 2 x XLR), alt 3-4 (balanced, 2 x 6.3 mm jack), control room
(balanced, 2 x 6.3 mm jack), recording (2 x RCA), 2 aux send (unbalanced, 6.3 mm
jack), stereo headphones (6.3 mm jack))
PHANTOM 48 V, selectable
RESPONSE 20-20,000 Hz
DISTORTION Harmonic: 0.05 % Harmonic: 0.007 %
S/N RATIO > 82 dB
POWER SUPPLY 100-240 V AC, 20 W maximum
DIMENSIONS 385 x 80 x 338 mm depth 612 x 80 x 338 mm depth
OPTIONAL SM-A4: mounts for assembly in 19” rack
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