Atlantic Technology 3.1 HSB Руководство по эксплуатации - Страница 8
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8
RECOMMENDED SETUP
Use your A/V receiver to handle all the low and high-pass functions.
Set the 3.1 HSB's subwoofer amp settings as follows:
Standby:
Auto
Lowpass
Bypass
Phase:
Normal
Level:
11 o'clock position
Refer to your A/V receiver's instructions to set its speaker confi guration as follows:
L, C, R, SR size:
L, C, R, SR Hi-pass:
Subwoofer:
Subwoofer Low-pass
ALTERNATE SETUP
Should you wish to fi ne-tune the subwoofer manually, begin with the above set-
tings, then:
•
Change the A/V receiver's subwoofer lowpass frequency to its highest setting.
•
Enable the 3.1 HSB's lowpass fi lter by moving its rear-panel switch to the
LOWPASS position.
•
Adjust the Lowpass Frequency and Phase controls on the 3.1 HSB.
LOWPASS FREQUENCY
We recommend using an initial setting of 125Hz (around 2 o'clock) for the
3.1 HSB, and adjusting from that point. The goal is to obtain a smooth transition
between the subwoofer and the front channels, and produce a cohesive and well
integrated sound "picture."
To do this, play something with a "walking bass line", where some of the bass
notes are played by the front channels, and some by the subwoofer. A good exam-
ple of this is Van Morrison's "Into the Mystic."
While listening, adjust the lowpass control to avoid excessive overlap (too-loud
notes) or acoustic gap (missing or weak notes) in the cross-over area.
In the end, a little time spent fi ne-tuning will generally result in dramatically better
bass response.
PHASE CONTROL
This switch allows precise acoustic matching of the subwoofer with the front chan-
nels. Try in both positions, and use the position that results in the strongest bass
output, especially in the front channel-to-subwoofer cross-over area.
Small
125Hz
ON
125 Hz
3.1 HSB Speaker Base System with H-PAS