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4. INFO ABOUT WIRE CROSS SECTIONS AND CABLE QUALITY
MAIN POWER CABLE CROSS SECTION
EMPHASER recommends a minimum power cable cross-section (5m total length) of 35mm
2
for the
main and the ground power supply cables.
These recommendations guarantee trouble-free operation of your amplifier, giving you full power out-
put. Using main power cables with cross sections smaller than 35mm
2
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!
RCA INTERCONNECTS
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 interconnects should
always be kept far away from any potential sources of electrical interference e.g. electronic vehicle
management systems (engine computers, relays etc.) fuel pumps, wiring harnesses etc.!
LOUDSPEAKER CABLES
Use good quality speaker wires of minimum 2.5mm
2
, up to 4.0mm
2
cross-section, depending on the
necessary total length!
MINIMUM SPEAKER IMPEDANCES
The heat dissipation capacity of this amplifier series 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,
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).
EM Digital 4/5-CH Manual 2004 26.03.2004 11:39 Uhr Seite 11
