Emphaser EA-M1, EA-M4, EA-M4X User Manual
EA-M1
1-CHANNEL AMPLIFIER
EA-M4
EA-M4
4-CHANNEL AMPLIFIER
x
4-CHANNEL AMPLIFIER
INSTALLATION & OPERATING MANUAL
EINBAU- & BEDIENUNGSANLEITUNG
Thank you for purchasing this peerless EMPHASER amplifier!
To maximize the performance of this amplifier and your complete car audio system install, we
recommend that you acquaint yourself thoroughly with all technical features and controlling
options of this EMPHASER amplifier. Please read this manual carefully, before attempting
the installation.
If, after reading this manual, you still have questions regarding functions or the installation of
the amplifier, we recommend that you consult your dealer.
KEY FEATURES
■ 4CH Class-D Amps for 4/2 Ohms Stereo Operation
■ 1CH Class-D Amp for 4/2/1 Ohms Mono Operation
■ Bridge Operation into 4 Ohms
■ Adjustable 12dB/octave HP + LP and BP X-Over
■ Extended X-Over Range for 2-Way Active Speaker Setup
■ Bass Boost for EA- M1
■ EA-M1 Remote Control included
■ EA-M4/4x Remote Control ready
■ Protection Circuit
■ Tiffany RCA So ckets
■ Moulded Power + Speaker Terminal
TECHNICAL SPECIFICATIONS
Model EA-M1 EA-M4 EA-M4
Number of Channels 1 4 4
Rated Power Output (RMS)
At 4 Oh ms / 14.4V (TH D <=0 .1%)
Rated Power Output (RMS)
At 2 Ohms / 14. 4V (TH D<=1.0%)
Rated Power Output (RMS)
At 1 Ohm / 14.4V (THD <=1.0%)
Rated Power Output (RMS)
Bridged, 4 Ohms / 14.4V
(TH D <=1.0 %)
Damping Factor
4 Ohms/100Hz
Signal-to-Noise Ratio
(All channels)
Frequency Response
(x-over set to FULL)
Channel Separation n.a. > 55 dB > 55 dB
Input Sensitivity 0. 2 – 6 V 0. 2 – 8 V 0. 2 – 8 V
Integrated X-Over
Slope Rat es HPF / LP F
Cross-Over Frequency:
High Pass
Low Pass
Dimensions (W x H x D) 240x185x65 mm 240x185x65 mm 350x185x65 mm
60 0 W x 1 105 W x 4 23 0 W x 4
1000 W x 1 165 W x 4 325 x 4
150 0 W x 1 n.a. n.a.
n.a. 34 0 W x 2 670 x 2
> 250 > 250 > 250
> 85 dB > 85 dB > 85 dB
10 Hz - 22 kHz 10 Hz - 36 kHz 10 Hz - 36 kHz
12 dB/Oct. 12 dB/Oct. 12 dB/Oct.
20 - 5000 Hz
50 - 50 00 Hz
20 - 5000 Hz
50 - 50 00 Hz
x
20 - 5000 Hz
50 - 50 00 Hz
2 3
CONNECTIONS + CONTROLS EA-M1
1 POWER LED
LED to show proper operating status of the amplifier by white illumination.
Protect state of amplifier is signaled by the red LED.
2 RCA INPUTS L/R-CH
Low-level stereo RCA signal input L/R-CH for connection to head-unit.
3 RCA OUTPUTS L/R-CH
Low-level stereo RCA signal output L/R-CH for connection to another amplifier.
4 INPUT GAIN CONTROL L/R-CH
Input gain potentiometer for channel L/R-CH, to match the output voltage of the head-
unit to the amplifier’s input.
5 HIGHPASS FREQUENCY CONTROL
Control potentiometer to adjust the crossover highpass filtering frequency point of the
amplifier.
6 X-OVER MODE
Switch to choose between high- and lowpass filtering and fullrange signal.
7 LOWPASS FREQUENCY CONTROL
Control potentiometer to adjust the crossover lowpass filtering frequency point of the
amplifier.
8 BASS BOOST
To in crease bass performance from 0 – 9 dB @ 45 Hz.
CONNECTIONS + CONTROLS EA-M1
Side panels
1 2 3 4 5 6 7 8 9
bl bm bn bo
9 REMOTE CONTROL
Port for the provided remote control (EA-M1 only, EA-M4 and EA-M4x as option).
10 “GND” POWER INPUT TERMINAL
Terminal to connect the amplifier to the chassis ground or negative pole of the car battery.
11 “REM” INPUT TERMINAL
Terminal to connect the amplifier to the automatic (remote) turn-on / turn-off lead of the
head unit.
12 “+12V” POWER INPUT TERMINAL
Terminal to connect the amplifier to the positive +12V pole of the car battery.
13 SPEAKER OUTPUT TERMINAL
Output terminal to connect the speakers to the amplifier.
4 5
CONNECTIONS + CONTROLS EA-M4 AND EA-M4
x
CONNECTIONS + CONTROLS EA-M4 AND EA-M4
x
1 RCA INPUTS
Low-level RCA signal input CH1/2 / 3/4 for conne ction to head - uni t.
2 INPUT GAIN CONTROL 1/2-CH
Input gain potentiometer for channel 1/2-CH, to match the output voltage of the head-
unit to the amplifier’s input.
3 HIGHPASS FREQUENCY CONTROL 1/2-CH
Switch set to “ON” activates the highpass control potentiometer to adjust the
crossover highpass filtering frequency point of the amplifier.
4 LOWPASS FREQUENCY CONTROL 1/2-CH
Switch set to “ON” activates the lowpass control potentiometer to adjust the crossover
lowpass filtering frequency point of the amplifier.
5 INPUT CHANNEL MODE
In case you only have one stereo RCA cable, switch set to “2-CH”, connect the RCA
cable to the CH1/2 RCA input sockets and the amplifiers internally routes the signal to
CH3/4. If you connect four RCA cables, set the switch to “4- CH ”.
6 POWER LED
LED to show proper operating status of the amplifier by white illumination. Protect
state of amplifier is signaled by the red LED.
7 REMOTE CONTROL
Port for the optional available remote control.
8 LOWPASS FREQUENCY CONTROL 3/4-CH
Switch set to “ON” activates the lowpass control potentiometer to adjust the crossover
lowpass filtering frequency point of the amplifier.
9 HIGHPASS FREQUENCY CONTROL 3/4-CH
Switch set to “ON” activates the highpass control potentiometer to adjust the
crossover highpass filtering frequency point of the amplifier.
10 INPUT GAIN CONTROL 3/4-CH
Input gain potentiometer for channel 3/4-CH, to match the output voltage of the head-
unit to the amplifier’s input.
11 “GND” POWER INPUT TERMINAL
Terminal to connect the amplifier to the chassis ground or negative pole of the car
battery.
12 “REM” INPUT TERMINAL
Terminal to connect the amplifier to the automatic (remote) turn-on / turn-off lead of the
head unit.
13 “+12V” POWER INPUT TERMINAL
Terminal to connect the amplifier to the positive +12V pole of the car battery.
14 SPEAKER OUTPUT TERMINAL
Output terminal to connect the speakers to the amplifier in either stereo or bridged
mode.
Side panels
1 2 3
bl 9
bm bn bo bp
4 5 6
8 7
EA-M4
x
6 7
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