Bryston SP3 Manual page 42

APPENDIX G: SUB-WOOFER SETUP continued
Volume level corrections (from -12 to +12dB) can be entered for each speaker
individually in the SPEAKR LEVEL screen.
in CROSSOVER
Subwoofer setup screen differs between the situation when the Front speakers were
declared as "Small" (above) versus when the Front were declared "Large" (below):
The difference deals with the Xtra Bass feature and is described in Section 4.
3. Subwoofer in 2-channel Bypass mode.
Two channel bypass mode is selected by the front panel button labelled "2 CH.
BYPASS" and applies to analog stereo (left and right only) input signals. The signals are
bypassing the Digital Signal Processor (DSP) and are routed only through analog
preamps and analog volume control circuit. In this mode DSP can be completely
disabled when the "in2BYPASS" option is OFF, or it can be used to extract the bass
contents of the analog L and R input channels and output it through the Subwoofer
sockets. When "in2BYPASS" option is ON then the cross-over frequency used for bass
extraction is the one set up in:
SOURCE SETUPCROSSOVER FcFRONT, while the Subwoofer Volume
Level correction is the one set up in:
SOURCE SETUPSPEAKR LEVELSUB
4
SPEAKR LEVEL correction values are normally entered during or after the "Pink Noise" test, which is or
will be described in a separate document. In most situations only the subwoofer level correction need to be
applied specifically for a given subwoofer efficiency and gain.
5
Cutoff frequency may need be changed only if the speakers are unusually small with higher bass cutoff
than 80Hz, or if they are medium size with lower than 80Hz cutoff but significantly higher than 30Hz
(30Hz would be "Large").
Source Setup Screen
5
and subwoofer configuration is in SUBWOOFER submenu.
Subwoofer setup screen (Small speakers)
Subwoofer setup screen (Large speakers)
SubWoofer Setup
4
Cross-over frequencies can be modified
Page 2 of 4