General Info About Wire Cross Sections And Cable Quality; Main Power Cable Cross Section; Rca Interconnects; Loudspeaker Cables - EMPHASER EA2350 Installation & Operating Manual

EA 2/4-CH Manual 12.03.2002
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
ning the main and the ground power supply cables. In case you intend to drive
very low impedance loads, such as 1 ohms stereo or 2 ohms bridged, it is sug-
gested to operate this amplifier with 50mm
These recommendations guarantee trouble-free operation of your amplifier, giving you full and trou-
ble-free power output. Using main power cables with cross sections smaller than 35mm
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 EMPHASER amplifier, you should stick to high quality
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
necessary total length!
4.3 MINIMUM SPEAKER IMPEDANCES
The heat dissipation capacity of this amplifier has been designed to cope with low impedance loads,
such as 1 ohms for stereo speaker setups or 2 ohms in bridged mode operation. However, EMPHA-
SER 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.
10
12:54 Uhr Seite 10
2 main power cables.
2 , up to 4.0mm
2 concer-
will result in
2
2 cross-section, depending on the