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EUROCOM Installed Sound
SN2408
Energy-Efficient 80-Watt Mixer Amplifier with Dual 70/100 V and 4 Ω Outputs for
Distributed Music, Paging and AV Applications
Summary description: The mixer-amplifier shall be of
compact, shelf-mountable multi-input design with built-in
paging functions and two mono transformerless Class D
power amplifiers with switch-mode power supplies, one low-Z
and one high-Z (70/100 V) for distributed speaker systems.
Controls and indicators shall include the following:
• Master Volume knob for setting overall volume
• Indicator ring for power (yellow) and clipping
(flashing red)
• HI EQ/LO EQ knobs to adjust the overall treble
and bass
• Input level knobs (1-5) to set the relative level of
each input
• Phantom/Mic/Line switches (3) to select input
channel mode
• Tel/Page input screw pot to adjust telephone
paging input
• Zone 2 output screw pot to adjust the level of the
Zone 2 feed
• Mains voltage switch to select 115 or 240 VAC
• High-Z output switch to select 70 or 100 V operation
• Balance screw pot to adjust the relative output of the
two amps
• Output Assign DIP switches to assign inputs to the
Zone 2 out and to enable/disable external processing
inserts for each amp
• Mute Assign DIP switches to enable/disable muting
• Mute depth screw pot to set ducking of aux inputs
during pages
• Power switch to turn the unit on and off
Connections to the mixer-amplifier shall include:
• Mic/Line inputs on three XLR/TRS (1/4-inch)
combination jacks and three 4-pin
Euroblock connectors
• Aux inputs (2 pair), unbalanced line-level RCA,
summed to mono
• Output for both high- and low-Z on a 4-pin
Euroblock connector
• Tel/Page input on a 3-pin Euroblock connector
• Zone 2 line-level output a on 3-pin Euroblock
connector
• Effects inserts on RCA jacks (send and receive for
each amp)
• AC power on IEC jack
Architect’s and Engineer’s Specifications:
Protections incorporated into the amplifier shall include
automatic limiting and independent DC and thermal
overload protection.
Performance criteria met by the mixer-amplifier
shall include:
• RMS power output (1 kHz @ 1% THD) for the low-Z
amp of 80/40 W (4/8 Ω) and for the high-Z amp of
80/80 W (100/70 V)
• Frequency Response (1 W, 70/100 V) of 20 Hz-20 kHz,
+/- 1 dB
• Dynamic range of 65 dB for Mic, 80 dB for Aux,
78 dB for Tel
• Distortion (THD+N; 1 W, 1 kHz) of 0.05% into 8 Ω
• Signal to Noise Ratio (1% THD+N) of 90 dB
AC Power requirements of the mixer-amplifier
shall be:
• Mains voltage of 115 or 240 VAC at 50~60Hz
• Power consumption at rated power output of 130 W
for 70 V only, 220 W for 100 V only, and 370 W for
100 V and 4 Ω together
• Power efficiency of 70%
Physical characteristics of the mixer-amplifier
shall be:
• Height x Width x Depth of 3.3 x 12 x 14.2 in
(83 x 305 x 360 mm)
• Net weight of 9.2 lbs (4.2 kg)
Model: The mixer-amplifier shall be the BEHRINGER
EUROCOM SN2408.