As a point of information, despite the use of the term "bridged" by the dealer and despite misuse of that term in some literature you may have seen, the 275-6 and other amplifiers in the 275 series cannot be bridged. When they are operated in mono mode the two channels are paralleled, which is very different than bridging.
A bridgeable amplifier can potentially supply as much as 4x as much power in mono mode as in stereo mode, depending on the specific design, but that increase in power capability is usually accompanied by several sonic downsides. Most notably not being able to handle low impedances very well, or at all, since a bridged amp will "see" the speaker’s impedance divided by two.
In the case of the 275-6, though, paralleling the channels results in a 2x increase in rated maximum power compared to stereo mode, while potentially **improving** the ability of the amp to handle low impedances. That is because in mono mode the 4 ohm, 8 ohm, and 16 ohm taps in effect become 2 ohm, 4 ohm, and 8 ohm taps respectively.
All of that said, however, I have no knowledge as to how the sonics of that particular amp compare in the two modes.
Good luck. Regards,
--Al
A bridgeable amplifier can potentially supply as much as 4x as much power in mono mode as in stereo mode, depending on the specific design, but that increase in power capability is usually accompanied by several sonic downsides. Most notably not being able to handle low impedances very well, or at all, since a bridged amp will "see" the speaker’s impedance divided by two.
In the case of the 275-6, though, paralleling the channels results in a 2x increase in rated maximum power compared to stereo mode, while potentially **improving** the ability of the amp to handle low impedances. That is because in mono mode the 4 ohm, 8 ohm, and 16 ohm taps in effect become 2 ohm, 4 ohm, and 8 ohm taps respectively.
All of that said, however, I have no knowledge as to how the sonics of that particular amp compare in the two modes.
Good luck. Regards,
--Al