Bridged Mode - Bryston 3BSST2 Owner's Manual

"Bridged mode" refers to the combining or "bridging" of two amplifier channels in series to form a single amplifier channel.
The primary reason for doing this is to achieve a single amplifier channel with much greater output power. When two 3B
channels or two 4B channels are bridged the combined single channel will output up to 2 times the voltage and therefore,
theoretically, 4 times the power of a single non-bridged channel. In practice the actual output power achieved is limited by
the capability of the power supply as well as the ability of the amplifier to dissipate the increased heat that is generated. It
should noted that the usual minimum load connected to a pair of bridged 3B or 4B channels should be twice the minimum
of 4 Ohms, or ≥ 8 Ohms.
• Only one input is used: Channel #1 (also referred to as the LEFT input).
• The single input can be either balanced or un-balanced.
• Only the two RED binding post connectors are used (i.e. the black ones are NOT used). The LEFT (Ch. 1) binding post
is the positive polarity connector and the RIGHT (Ch. 2) RED binding post connector is negative.
• The bridged output is floating or un-grounded. DO NOT CONNECT EITHER OUTPUT TERMINAL TO GROUND.
• To engage bridged mode, put the MODE switch, located on the rear panel, into the BRIDGED position, but before do-
ing so make sure all input and output connections are correct for bridged mode operation.

BRIDGED MODE