ARC Audio XDi 450.4 소유자 매뉴얼 - 페이지 4
{카테고리_이름} ARC Audio XDi 450.4에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. ARC Audio XDi 450.4 11 페이지. Full range class d amplifier
페이지 인쇄
Input Section
This XDi amplifier in equipped with a Balanced Input Stage that is compatible with any analog source including Balanced
and Unbalanced RCA, Common ground speaker level output or BTL (Bridged Tied Load) outputs common on many OEM
headunits. The RCA pigtails included with this amplifier are intended to be used to speaker level outputs and include a
divider network molded into the end to reduce the level of
the OEM system. If you are integrating into an OEM systems
balanced or common ground line level signal you should
not use these Pigtails. In this case it is recommended that
you use an appropriate RCA cable with 1 set of ends
removed as inputs for the amplifier.
Gain
Because of the wide range of head unit output configurations all ARC Audio amplifiers have an adjustable input sensitivity
or "Gain" . The gain is not a volume or a power limiting control like a throttle. It makes the amp more sensitive to input from
the stereo. With the gain up the amp will reach full output at a lower volume setting on the deck. At higher gain settings
the amp also becomes more sensitive to noise from the car's electrical system. Try to run the gain at the lowest setting
possible for you system.
There is no correct gain setting. Because speakers require
different power demands to reach the same output, the
gains most often need to be used to compensate for these
differences. If you tried to set all the gains at half way you
would probably find the system didn't sound very good.
Using good judgment and listening carefully to each speaker
is still the best way to tune a system.
Crossover Controls
A crossover is a device that removes unwanted frequencies from a speaker or amplifier. A tweeter can easily be
destroyed by bass notes if they are not filtered out. Likewise a subwoofer will not sound natural if it is playing midrange
notes. A crossover removes these sounds from the speaker. As you might guess, careful adjustment is need to ensure
that all the speakers are playing the right sounds and that
you are left with no "holes" or low spots in the frequency
response.
BASS
GAIN
BOOST
MIN
0
dB
9
MAX
INPUT
AUTO SENSE
2CH
OFF
4CH
ON
BASS
LOW/BP
HP FREQ Hz
LP FREQ Hz
BOOST
10
50
0
dB
9
1K
3K
FREQ Hz
INPUT
GAIN
50
MIN
2CH
3K
MAX
4CH
3
LOW/BP
HP FREQ Hz
LP FREQ Hz
10
50
3K
1K
FREQ Hz
GAIN
MIN
50
MAX
3K
FULL
HIGH
HP
FULL
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