Classe Audio SSP-300 - Manual (Page 49)

49
• THX setup sends you to a screen in which you can configure
some THX-specific features.
Specifically:
• THX2 ultra sub should be engaged if you are using a
subwoofer that is certified by the THX Ultra2 standard. Such
subwoofers are essentially flat to 20 Hz under what might be
considered worst-case acoustic conditions for bass, and have
prodigious output capability. If you select the
THX2 ultra
sub button, you will also notice that the otherwise grayed-out
boundary gain compensation button becomes available. (See
below.)
• ASA stands for Advanced Speaker Array, and engages a
proprietary THX technology that provides outstanding
flexibility and performance in your surround sound array. This
button will take you to a submenu in which you specify that
your rear speakers are
together (less than 1 foot apart), close
(between 1-4 feet apart), or apart (more than 4 feet apart). In
an ASA surround system, the ideal situation is one in which
the rear speakers are almost touching each other, and you have
selected together. This allows the ASA processing to create the
most seamless and versatile surround sound field.
• boundary gain compensation will adjust for the fact that
most of us do not suffer from the worst-case acoustic scenario
that THX Ultra2 subwoofers can handle. If you have such a
subwoofer, and it is placed within 3-4 feet of at least one wall,
engage the boundary gain compensation. It will correct
for the acoustic reinforcement your room is providing to the
subwoofer in order to yield the flattest, most accurate bass.
• positions 1-4 are the menus in which you can create and
recall families of speaker level and distance measurements for
later use. You might have one position defined for the seating
arrangement used for standard movie viewing, and another for
when you are sitting by the window reading a good book.
Positions can be enabled or disabled as required by going to the
system setup/speakers/position menu. If the position in question
is highlighted, it is available for use. If it is not highlighted, it has
been disabled to prevent accidental use.