Diamond Audio DES400.2D 소유자 매뉴얼 - 페이지 10

{카테고리_이름} Diamond Audio DES400.2D에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Diamond Audio DES400.2D 20 페이지.

SYSTEM SETUP

Placing the XOVER switch in the FULL position sets the ampliﬁer to Full Range. This

setting allows ALL frequencies to pass to the speakers. With placing the switch in the

HPF or LPF position activates the 12dB crossover, adjustable from 35Hz - 350Hz. The

500.1D/1000.1D mono is dedicated for Low Pass (LPF) only with an adjustable

frequency from 35Hz - 350Hz. The DES1000.5D (5 channel) ampliﬁer offers full

range (FULL) high pass (HPF) or low pass (LPF) selector switch for channels 1-4.

Channel. Sub channel is LPF or OFF (for DSP processing)

Placing the switch in the HPF position sets the ampliﬁer to the High Pass Filter mode,

enabling frequencies above the cutoff point to pass. Placing the switch in the LPF position sets the ampliﬁer to the Low Pass

Filter mode, enabling frequencies below the cutoff point to pass. For system tuning begin with the frequency set at

approximately 80Hz and ﬁne tune up or down based on music choice and input level.

To adjust the gain setting, turn the ampliﬁer gains all the way down (counterclockwise). If using a remote level control (ALL

DES ampliﬁers), plug the level control into the ampliﬁer and turn it to about "HALF-WAY" (approx. the 12 O'clock position)

this setups the bass boost so you can turn it UP...OR... turn it DOWN when playing different music styles. Next turn the source

unit volume up to almost full volume (usually about 2/3rds of the way up) or until the output starts to distort on an

oscilloscope. This will be NEARLY full volume on most source units, perhaps one or two "clicks" down from maximum volume.

Next, increase the ampliﬁer gain setting until adequate volume is achieved, or until distortion is audible and then turn it down

a bit until the distortion is inaudible.

NOTE: Ideal signal to noise and dynamic range are achieved with the gain at minimum. Most users find adequate gain

and volume is achieved at less than halfway in the adjustment range. Avoid setting the amplifier gain very high as

noise and distortion will increase significantly. For a more in depth level setting (gain adjustment) procedure, visit the

Diamond Audio website.

The HPF or LPF crossover adjustment can now be ﬁne tuned. If you are using the ampliﬁer in a HPF conﬁguration and would

like the system to be a little bit louder you can increase the HPF Filter frequency and reset the "Gain" of the ampliﬁer. Raising

the HPF frequency up too high however will cause a loss of mid range and bass. If you are using the ampliﬁer in a LPF

conﬁguration and you hear voice or vocals coming from your subwoofer system you can turn the LPF frequency down (lower).

After setting the input gain adjustment and crossover, you may choose to add a small amount of "Bass Boost" in the low

frequency region. Remember that the Bass Boost feature will not ﬁx a poorly designed subwoofer enclosure or subwoofers

that didn't sound good to begin with.

1. Make sure any bass EQ or low frequency equalization from the source unit is set to OFF or FLAT.

2. While playing the same musical selections used during the gain setting process, slowly increase the level of the Bass

Boost. You should be able to notice a change between 0 and +12dB. At the same time adjust frequency slowly from

35 -350Hz. If you do not notice much difference, then it will not serve any beneﬁt to increase the boost further.

3. If the boost has audible beneﬁts without adding appreciable distortion, ﬁnd a level that suits your taste. Remember: it's

much easier to construct the right subwoofer enclosure for your listening preferences than relying on a bass boost control

to do the job!

35Hz

350Hz