EarthQuake mini D2000 Manual de instalación - Página 3
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INTRODUCING mini
D
nmpurlERS
The
mini
D amplifier series is the most efficient c1ass D series ever made, running
cool as they deliver unbelievable power despite oftheir compact size.
Designed with the patented Optical Control Circuitry, each
mini
D amplifier comes
with a built in protection fuse which can handle 1 to 4-0hm loads (it is most efficient
in 2-0hm installation). Furthermore, the amplifier will automatically resets once the
protection circuit is triggered, unless the problem persists. Equipped with soft
clipping circuitry, these amps will not produce any audible distortion when c1ipped by
10%.
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The
mini
D amplifier series has a built in pre-amplifier that allows users to custom
design the frequency response and shape to their requirement. The pre-amplifier
stage includes the following features:
Bass Boost - available on the D2000 and D2500 models only
The bass boost allows you to select the center frequency that you want to
boost as well as the quantity. For most application, the best setting is at %
turn (2 o'clock position).
Variable Subsonic Filter
Subsonic filters are often used to protect speakers from harmful low
frequencies and DC voltage. Often clipped low frequencies could have
the same effect as that of DC input. The best setting for most system is at
30Hz Highpass.
LPF (Low Pass Filter)
Often mistaken as crossover, the LPF is used to filter out unwanted mid
and high frequencies, leaving the woofer to response to low frequencies.
For most subwoofer application, the best crossing point is about
%
turn (2
o'c1ockposition).
Gain Control
Gain control regulates the amplifier's sensitivity to match the signa I output
voltage of the audio source/head unit. It is not a volume control. The
mini
D amplifiers have gain controls that are extremely sensitive and therefore,
should be adjusted with caution. When set at MIN, it will need 4V to clip
these amplifiers. But with a mere
'/4
turn, the amplifiers can clip with only
0.5V.
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