ACOUSTIC FINE TUNING

Each HDLCRbx loudspeaker features separate Treble Cut and Dialog Enhance controls on the rear
for acoustic fi ne-tuning after placement, as shown in
Figure
4
. Adjust these controls as follows:
Initially set Treble Cut to Flat and Dialog Enhance to Normal.
reproduced sound is too bright, set the Treble Cut switch to – 3 dB to lower the high-
frequency response.
Listen to dialog being reproduced on the HDLCRbx. If you want it more pronounced, set
the Dialog Enhance switch to Enhance to boost the mid-frequency response.

CHECKING LOUDSPEAKER PHASE

Loudspeaker wire has two conductors. On both your loudspeaker and amplifi er, one conductor
is attached to the negative (–) terminals, while the other is attached to the positive (+) terminals.
Usually, the wire is marked for your convenience, but the marking can be done in the following
different ways:
Stripe on one wire
Ribbed area you can feel on one conductor
Different colors of metal wire on each conductor
Fabric strand or string wound into one of the conductors
8
Figure 4.
The HDLCRbx’s Treble Cut, Dialog Enhance, and D.S.F.G. switches.
DS00420B-0_HDLCRbx.indd 10 4/15/08 3:16:29 PM