FORCE Amplifier User’s Manual - page 3
Features About 2 Ohm operation
Your new FORCE amplifier features
the following:
• 2 Ohm stable stereo operation
with output power increase
• Thermal and speaker short
protection
• Soft turn-on circuit
• Remote turn-on/turn-off circuit
• Variable input gain control
• Built-in fixed crossovers:
2F200: fixed (200Hz)
4F400: fixed low pass (120Hz)
on CH3/4
fixed high pass (200Hz)
on CH1/2
• Nickel-plated RCA low level and
high level inputs
• LED power and protection
indicators
• Silver anodized heatsink
Your FORCE amplifier has been
designed to operate efficiently at loads
down to 2 Ohms. This means that you
can install four 8 Ohm speakers per
channel, when using parallel wiring.
Increasing the number of woofers per
channel at low frequencies (below
100Hz) produces an acoustic coupling
effect. This acoustic coupling effect
increases your power output by about
3dB per speaker, or the equivalent of
an additional 10W per speaker.
When operating at 2 Ohms, the
amplifiers will increase their output
power by approximately 50%. The
current draw will also increase by
about the same amount, so be sure
you have enough current to run the
amplifiers into a 2 Ohm load.
If you lack adequate current, your
music reproduction will be distorted.