LEM AMP SERIES, Owner'S Manual, Page: 29 / 31

13
AMP SERIES
Technical specifications
AMP SERIES • TECHNICAL SPECIFICATIONS
POWER SPECIFICATIONS AMP 2.4 AMP 4 AMP 8 AMP 12
EIA output power
1kHz
Max THD 1%
Both channels driven.
2 Ohms
4 Ohms
8 Ohms
4 Ohms bridged
8 Ohms bridged
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120 W
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300 W
230 W
150 W
540 W
420 W 550 W
425 W
270 W
1100 W
850 W
1000 W
650 W
400 W
2000 W
1300 W
FTC output power
20Hz–20kHz
Max THD 0.1%
Both channels driven.
4 Ohms
8 Ohms
8 Ohms bridged
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100 W
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200 W
400 W
400 W
800 W
600 W
1200 W
ELECTRICAL SPECIFICATIONS
Inputs
Sensitivity
Impedance
0 dB (0,775 Vrms)
20 kOhms (balanced) • 10 kOhms (unbalanced)
Frequency response 20÷20000 Hz (+0, -1dB)
Voltage gain 26dB 28dB 31dB 34dB
Slew rate -27 V/µs 20 V/µs
Damping factor > 200:1 (@ 1 kHz / 8Ohms)
Crosstalk -100dB @ 1 kHz -90dB @ 1 kHz
Hum & Noise > 100 dB > 105 dB
Total harmonic distortion
(THD+N)
0.1% @1 kHz
Inter-modulation distortion
(IMD)
0.1% 8 ohms, 1 kHz @ 1 W
GENERAL SPECIFICATIONS
PROTECTIONS
Power Supply
Amplifier
Speakers
Power transformer thermal protection
Heat sink thermal protection
Short circuit protection
Sensor for current on outputs
Limiter
CONTROLS
Front panel
Back panel
ON/OFF switch
Signal level control for each channel
PARALLEL/STEREO/BRIDGE selector (AMP 2.4 STEREO/PARALLEL)
Ground ON/Floating
Limiter ON/OFF switch (except AMP2.4)
INDICATORS
ON: 1 green LED
PROTECT/LIMIT/SIGNAL: 3 LED bar for each channel
CONNECTORS
Input
Output
1 JACK for each channel
1 headphones STEREO JACK
1 JACK for each channel
1 COMBO + Barrier strip in parallel for each channel
1 SPEAKON 4-way + 2 Binding-Post for each channel
POWER SUPPLY see label on the apparatus
DIMENSIONS (WxHxD) 483x44x310 mm 483x88x442 mm 483x132x442 mm
WEIGHT 8 kg 12,5 kg 15 kg 18,5 kg