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INSTALLATION & OPERATING MANUAL
EINBAU- & BEDIENUNGSANLEITUNG
2-/4-/5-CHANNEL AMPLIFIERS
EA2
E
A
2
11
0
60
60
60
6
0
EA2160EA2160
0
22
EA22
E
A
2
2
2
0
0
0
EA2220EA2220
0
80
EA48
E
A
4
8
8
0
0
0
EA480EA480
EA 2-4-5 CH Manual (EDF).indd 1 01.03.2006 9:30:05 Uhr
1. DESIGN FEATURES 5
2. CONNECTIONS & CONTROLS 6-11
2.1 FRONT & REAR PANEL CONNECTION & CONTROLS EA2160/EA2220 6-7
2.2 FRONT & REAR PANEL CONNECTIONS & CONTROLS EA480 8-9
2.3 FRONT & REAR PANEL CONNECTION & CONTROLS EA450-300 10-12
2.4 SPEAKER IMPEDANCE & POWER WIRE INFO 13
3. AMPLIFIER MOUNTING 13
4. WIRE ROUTING 14
4.1 MAIN POWER WIRES 14
4.1 RCA & REMOTE WIRES 14
4.3 LOUDSPEAKER WIRES 14
5. CROSSOVER ADJUSTMENTS 15
5.1 SELECTING THE OPERATION MODE 15
5.2 HIGHPASS CROSSOVER FREQUENCY ADJUSTMENT 15
5.3 LOWPASS CROSSOVER FREQUENCY ADJUSTMENT 15
5.4 SUBSONIC HIGHPASS CROSSOVER ADJUSTMENT 16
5.5 INPUT LEVEL ADJUSTMENT 16
6. TECHNICAL SPECIFICATIONS 32-33
7. EMPHASER LIMITED WARRANTY 34
7.1 EMPHASER WARRANTY LIMITATIONS 34
8. WARRANTY CARD 35
CONTENTS
EA 2-4-5 CH Manual (EDF).indd 2 01.03.2006 9:30:05 Uhr
1. TECHNISCHER AUFBAU / MERKMALE 17
2. ANSCHLÜSSE & BEDIENUNGSELEMENTE 18-23
2.1. EINGÄNGE & FUNKTIONEN AM FRONT & REAR PANEL EA2160/EA2220 20-21
2.2 EINGÄNGE & FUNKTIONEN AM FRONT & REAR PANEL EA2160/EA2220 22-23
2.3 EINGÄNGE & FUNKTIONEN AM FRONT & REAR PANEL EA2160/EA2220 24-26
2.4 LAUTSPRECHER-IMPEDANZ & POWERKABEL INFO 27
3. MONTAGE DES VERSTÄRKERS 28
4. VERKABELUNG / ELEKTRISCHER ANSCHLUSS 28
4.1 HAUPT-STROMKABEL 29
4.2 CINCH- & REMOTE KABEL 29
4.3 LAUTSPRECHERKABEL 29
5. EINSTELLUNG DER FREQUENZWEICHE 29
5.1 WAHL DES OPERATIONS-MODUS 29
5.2 HOCHPASS TRENNFREQUENZ EINSTELLUNG 30
5.3 TIEFPASS TRENNFREQUENZ EINSTELLUNG 30
5.4 SUBSONIC HOCHPASS TRENNFREQUENZ EINSTELLUNG 30
5.5 ANPASSUNG DER EINGANGSEMPFINDLICHKEIT 31
6. TECHNISCHE SPEZIFIKATIONEN 32-33
7. EMPHASER GARANTIE-BESTIMMUNGEN 34
7.1 EMPHASER GARANTIE-EINSCHRÄNKUNGEN 34
8. GARANTIEKARTE 35
INHALT
EA 2-4-5 CH Manual (EDF).indd 3 01.03.2006 9:30:05 Uhr
Congratulations!
And thank you for choosing this EMPHASER car audio amplifier!
To maximize the performance of this amplifier and your car audio system install, we recommend that
you acquaint yourself thoroughly with all capabilities and features of the EMPHASER amplifier model
you have chosen. Please read this manual carefully, before attempting the installation of this amplifier.
Please retain this manual and your purchasing / installation receipts for future reference.
IMPORTANT NOTICE:
In case you are installing your EMPHASER amplifier by yourself, you should
have your installation checked and approved by an authorized professional
EMPHASER dealer/installer, in order to qualify for full warranty protection and
also, to reach maximum power-output and audio performance possible with
your individual car audio system.
EA 2-4-5 CH Manual (EDF).indd 4 01.03.2006 9:30:05 Uhr
1. DESIGN FEATURES
CAR AUDIO AMPLIFIER: This EMPHASER amplifier allows the crossover controlled amplification
of satellite speaker systems, kickwoofer or subwoofer systems
DASH-MOUNT REMOTE LOWPASS LEVEL CONTROL: A compact „Lowpass-Level“ remote
control unit can be mounted close to the drivers seat. This control device allows the convenient level
adjustment of the bass volume (not applicable for EA480)
FULL-MOSFET CIRCUITRY: This EMPHASER amplifier line features a full MOS-FET circuitry
layout, implementing MOS-FET’s for power supply and output stages, to guarantee excellent sonic
performance and very high power output
LOAD STABILITY: This EMPHASER amplifier line up features models that work stable and reliable
into very low impedance loads. Due to the high damping factor, every model of this amplifier line will
guaranteed to have full control over the connected speaker system(s)
INTEGRATED ELECTRONIC CROSSOVER: The internal crossover section features indepen-
dently selectable highpass or bandpass filtering, as well as fulllrange loop through. All x-overs feature
crossover slope rates of 12/24 dB/octave
UNCOMPROMISING DESIGN AND CONSTRUCTION: Only best electrical and electronic
components have been used for the assembly of this amplifier line. Such as double-sided glass-fiber
epoxy circuit boards equipped with high current TR output devices.
ADVANCED PROTECTION CIRCUITRY: The protection circuitry safe-guards the amplifier
from short-circuits at the speaker outputs, DC offset voltage at the outputs and overheating of power
electronics
STATUS AND PROTECTION LED’S: A green and a red LED located at the side panel enable
you to monitor the operating status of your EMPHASER amp
ADJUSTABLE INPUT SENSITIVITY: Each RCA line-input pair accepts input voltages from
300mV to 7V, providing a good match to the line-output levels of almost any head-unit on the mar-
ket
EA 2-4-5 CH Manual (EDF).indd 5 01.03.2006 9:30:06 Uhr
2. CONNECTIONS & CONTROLS
2.1 REAR PANEL EA2160/EA2220NEL EA2160/EA2220EA2160/EA2220
9 “OUTPUT TERMINALS”
Loudspeaker output terminal to connect the loudspeakers.
10 “GND” POWER INPUT TERMINAL
Moulded direct power input terminals to connect the amplifier to the negative or ground
wire of the vehicle
11 “REMOTE” 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
Moulded direct power input terminals to connect the amplifier to the positive +12V power
wire connected to the car batterycar battery
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EA 2-4-5 CH Manual (EDF).indd 7 01.03.2006 9:30:10 Uhr
2. CONNECTIONS & CONTROLS
2.2 FRONT PANEL EA480
1 POWER LED
Green „operation“ LED, signaling correct operation of the amplifier.
2 INPUT GAIN CONTROL 1/2-CH
Input level control for 1/2-CH amplifier section - allowing to match the output voltage of
the head-unit‘s RCA line-outs to the amplifier input section.
3 HIGH PASS FREQUENCY CONTROL 1/2-CH
Control for the frequency adjustment of the 12dB/oct. high-pass filtering of the speakers
connected to 1/2-CH output terminals.
4 OPERATION MODE SWITCH 1/2-CH
Switch to select the operation mode of the crossover filter driving 1/2-CH section of the
amplifier.
5 LOW PASS FREQUENCY CONTROL 1/2-CH
Control for the frequency adjustment of the 24dB/oct. low-pass filtering of the speakers
connected to 1/2-CH output terminals.
6 INPUT GAIN CONTROL 3/4-CH
Input level control for 3/4-CH amplifier section - allowing to match the output voltage of
the head-unit‘s RCA line-outs to the amplifier input section.
7 HIGH PASS FREQUENCY CONTROL 3/4-CH
Control for the frequency adjustment of the 12dB/oct. high-pass filtering of the speakers
connected to 3/4-CH output terminals.
8 OPERATION MODE SWITCH 3/4-CH
Switch to select the operation mode of the active crossover driving 3/4-CH section of the
amplifier.
9 LOW PASS FREQUENCY CONTROL 3/4-CH
Control for the frequency adjustment of the 24dB/oct. low-pass filtering of the speakers
connected to 3/4-CH output terminals.
10 PROTECTION LED
Red „protection“ LED, signaling faulty speaker connections or general malfunction of the
amplifier.
11 RCA INPUTS 1/2-CH 3/4-CH
Low-level stereo RCA signal input for connection with head-unit.
EA 2-4-5 CH Manual (EDF).indd 8 01.03.2006 9:30:11 Uhr
2. CONNECTIONS & CONTROLS
2.2 REAR PANEL EA480
12 SPEAKER OUTPUT TERMINALS 1/2-CH and 3/4-CH
Output terminals to connect the speakers in stereo or bridged mode to the amplifier.
13 „GND“ POWER INPUT TERMINAL
Terminal to connect the amplifier to the negative or ground pole of the car battery.
14 „REM“ REMOTE INPUT TERMINAL
Terminal to connect the amplifier to the automatic (remote) turn-on / turn-off lead of the
head unit.
15 „+12 V“ POWER INPUT TERMINAL
Terminal to connect the amplifier to the positive +12V pole of the car battery.
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21 3 4 5 6 7 8 9 bl
EA 2-4-5 CH Manual (EDF).indd 9 01.03.2006 9:30:15 Uhr
10 11
10 11
2. CONNECTIONS & CONTROLS
2.3 FRONT PANEL EA450-300
1 RCA INPUTS 1/2-CH
Low-level stereo RCA signal input for connection with head-unit.
2 RCA INPUTS 3/4-CH
Low-level stereo RCA signal input for connection with head-unit.
3 STEREO RCA INPUT 5-CH
Low-level stereo RCA signal input for connection with head-unit.
4 POWER LED
Green „operation“ LED, signaling correct operation of the amplifier.
5 INPUT GAIN CONTROL 1/2-CH
Input level control for 1/2-CH amplifier section - allowing to match the output voltage of
the head-unit‘s RCA line-outs to the amplifier input section.
6 HIGH PASS FREQUENCY CONTROL 1/2-CH
Control for the frequency adjustment of the 12dB/oct. high-pass filtering of the speakers
connected to 1/2-CH output terminals.
7 OPERATION MODE SWITCH 1/2-CH
Switch to select the operation mode of the active crossover driving 1/2-CH section of the
amplifier.
8 INPUT GAIN CONTROL 3/4-CH
Input level control for 3/4-CH amplifier section - allowing to match the output voltage of
the head-unit‘s RCA line-outs to the amplifier input section.
9 HIGH PASS FREQUENCY CONTROL 3/4-CH
Control for the frequency adjustment of the 12dB/oct. high-pass filtering of the speakers
connected to 3/4-CH output terminals.
10 OPERATION MODE SWITCH 3/4-CH
Switch to select the operation mode of the active crossover driving 3/4-CH section of the
amplifier.
11 LOW PASS FREQUENCY CONTROL 3/4-CH
Control for the frequency adjustment of the 24dB/oct. low-pass filtering of the speakers
connected to 3/4-CH output terminals.
12 INPUT GAIN CONTROL 5-CH
Input level control for 5-CH amplifier section - allowing to match the output voltage of the
head-unit‘s RCA line-outs to the amplifier input section.
EA 2-4-5 CH Manual (EDF).indd 10 01.03.2006 9:30:16 Uhr
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