What are the default factory settings for the Bryston SP1.7 Stereo Amplifier?

The default factory settings are Left/Right = Large, Centre = None, Surrounds = Small, Back = None, and Subwoofer = Yes.

How can I determine whether to select small or large speaker settings?

It is important to consult your loudspeaker provider's instructions to understand your particular system's capabilities. THX certified loudspeaker systems are typically small, and using a subwoofer is recommended for handling low frequency dynamics.

What is the Xtra Bass Mode in the Bryston SP1.7 Stereo Amplifier?

The Xtra Bass Mode allows the subwoofer to be active even if the front speakers are full-range, particularly useful for Pro Logic movie soundtracks.

Explanation of ‘Xtra Bass’ Mode

The options available in this menu are:

For LEFT/RIGHT (LR) you can select SMALL OR LARGE

For CENTRE (C) you can select SMALL, LARGE or NONE

FOR SURROUNDS (SUR) you can select SMALL, LARGE or NONE

FOR BACK (BK) you can select NONE, ONE or TWO

FOR SUBWOOFER (SUB) you can select YES or NO

The SP1’s default factory settings as shipped are:

Left/Right = LARGE

Centre = NONE

Surrounds = SMALL

Back = NONE

Subwoofer = YES.

If only one back speaker is chosen, the signal will be present on the BACK LEFT OUTPUT only.

4.Once you have completed selecting the settings that match your particular speaker systems please move the cursor to the (X) and press SELECT to exit this menu.

NOTE: LARGE VS SMALL SPEAKER SETTINGS:

It is very important that you understand what is meant by the LARGE and SMALL settings in this menu. They do not refer to SIZE, but to the ability of the particular loudspeaker system to handle low bass/low frequency information. It is very important that you consult your loudspeaker providers instruction manual or the company regarding the capabilities of your particular system with regard to low bass/low frequency reproduction. Please note that all THX certified loudspeaker systems are SMALL since a subwoofer is a part of any THX certified loudspeaker system. It is strongly recommended that you consider using a subwoofer for any system which you expect to effectively handle the low frequency dynamics of modern motion picture soundtrack sources such as DVD or HDTV feeds, and many other discrete multi-channel programming sources. If in any doubt choose small, especially if you are using a subwoofer, since this will insure that all the appropriate low frequency information is directed to the subwoofer where it can be most effectively handled.