2.4 SPEAKER IMPEDANCES & WIRE INFO
The heat dissipation capacity of this amplifier has been designed to cope with low impedance loads.
However, EMPHASER laboratories recommend staying at or above the suggested impedance ratings
listed below:
EA1500FLX ➡2 ohms mono
2 x EA1500FLX in Master/Slave configuration: 4 ohms mono
Note: EMPHASER laboratory recommends a minimum main power cable cross-section (5m total
length) of minimum 25mm² and 35 mm², when the amp is intended to be operated at full output power
for prolonged periods of time. To reduce the diameter down to 25 mm², please use an according
power distribution block.
These recommendations guarantee trouble-free operation of your amplifier, giving you full power
output.
3. 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!
Before you proceed to install this EMPHASER amplifier, it is recommended to map out the complete
audio system and the respective wiring required. Consider all additional electrical requirements and
accessories, such as power cables, interconnect cables etc., to complete this install. Please note that
- because of possible interference problems with the existing car electrics and electronics - especially
the routing of the signal cables and the chassis ground connection will have a profound impact on a
trouble-free (noise free!) operation of the amplifier.
The mounting location should be carefully selected and in the interest of passive driver and passenger
safety, the amplifier must be securely mounted. Make sure that there is no wiring harness, fuel tank
etc. behind or below the mounting surface that may be damaged by the drilling of the holes for the
amplifier mounting screws. After installation, there should be a clearance of at least 5cm on all sides
including the top of the amplifier heatsink. Make sure the unit is not exposed to direct sunlight, humi-
dity, water, oil or spill of other fluids that may enter the amplifier.
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-drilled,
using a 2,5 mm or 3 mm drill bit. Make sure that the housing of the amp does not come into electrical
contact with the vehicle.
Important! There must not be a direct contact of the amplifier heatsink, bottom
panel or other metal parts to the vehicle chassis ground! Electrical ground-loops
can result in audible hum!