Specifications

4. GENERAL INFO ABOUT WIRE CROSS SECTIONS AND

CABLE QUALITY

4.1 MAIN POWER CABLE CROSS SECTION

EMPHASER recommends a minimum power cable cross-section of 35mm

concer-

ning the main and the ground power supply cables for the EA4100-500. In case

of very low impedance loads, such as 1 ohms stereo or 2 ohms bridged, it is sug-

gested to operate this amplifier with 50mm

main power cables.

These recommendations guarantee trouble-free operation of the EA4100-500 amplifier, giving you full

and trouble-free power output. Using main power cables with cross sections smaller than 35mm

will

result in unnecessary over-heating of the amplifier circuitry, distortion at high volume levels and it may

even cause the thermal protection circuitry to trigger, and shut-down the amplifier!

4.2 RCA INTERCONNECTS

It is obvious that for best performance of your EA4100-500 amplifier, you should stick to high quali-

ty RCA interconnect cables. Use twisted pair or triple shielded types only. Keep in mind, the RCA inter-

connects should always be kept far away from any potential sources of electrical interference e.g. elec-

tronic vehicle management systems (engine computers, relays etc.) fuel pumps, wiring harnesses etc.!

4.2 LOUDSPEAKER CABLES

Use good quality speaker wires of minimum 2.5mm

, up to 4.0mm

cross-section, depending on the

necessary total length!

4.3 MINIMUM SPEAKER IMPEDANCES

The heat dissipation capacity of this 6-channel amplifier has been designed to cope with low impe-

dance loads, such as 1 ohms for stereo speaker setups or 2 ohms in bridged mode operation.

However, EMPHASER laboratories recommend to stay above 2 ohms in bridged operation mode, to

guarantee a good damping factor to precisely control the connected speaker(s).

5. AMPLIFIER MOUNTING

Attention! For your own safety, disconnect the positive battery terminal (+12V) or

remove the main fuse in the positive power cable near the car battery, before you

start any wiring work!

Once the location where the amplifier will be mounted is defined, use the unit as a template for the

marking of the mounting holes with pencil or felt-tip marker. The mounting holes should be pilot-dril-

led, using a 2,5mm or 3mm drill bit. For the actual mounting, the supplied rubber washers have to be

pressed into the mounting holes before attaching the amp to the panel with the supplied mounting

screws.

Important! There must not be a direct contact of the amplifier heatsink, bottom

panel or any other metal part of the amplifier to the vehicle! Electrical ground-

loops can easily result in audible hum! Now secure the amplifier in its position by

tightening the screws evenly and re-check proper fit after completion.

EA 6-CH Manual 12.03.2002 13:32 Uhr Seite 10