Hi Bob,
Glad the amp is working out well for you.
I don't recall if the S300 has provision for operation in bridged mono mode; perhaps one of the others can clarify that.
Most amps which can be used that way have a switch on the back to select stereo or mono operation, and I don't think it has one. When mono operation is selected with the switch, the polarity of one channel is inverted, and the speaker is connected between the two red "hot" output terminals, with an identical input signal (corresponding to one channel, either left or right) being fed into both of the amplifier's inputs. That results in twice the voltage being applied across the speaker, compared to the normal stereo configuration in which the speaker is connected between one hot terminal and ground.
There are a few designs which don't have such a switch but provide for bridged mono operation by always inverting the signal in one channel; having the black output terminal of that channel "hot"; and the red output terminal of that channel in common with ground and the black terminal of the other channel.
But in any event I don't think you would want to operate in bridged mono mode with the Maggies, if they are what you end up purchasing, for three reasons:
1)While bridged mono mode substantially increases the power the amp can put out, it results in the amp seeing the speaker's impedance divided by two. Since the 1.6's are nominally 4 ohm speakers, the amp would see a nominal 2 ohm impedance (undoubtedly even lower at some frequencies), which very few amplifiers can handle gracefully.
2)The S300 in normal stereo operation can put out 300 watts into 4 ohms (twice its rating into 8 ohms).
3)It is generally believed that most stereo amplifiers do not sound quite as good when operated in bridged mono mode, compared to stereo mode.
As an alternative, though, you might want to consider bi-amping, which the Maggie's have provision for. See the comments on bi-amping by the noted designer Steve McCormack (Stevemcx) in this thread: http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1234896660
Regards,
-- Al
Glad the amp is working out well for you.
I don't recall if the S300 has provision for operation in bridged mono mode; perhaps one of the others can clarify that.
Most amps which can be used that way have a switch on the back to select stereo or mono operation, and I don't think it has one. When mono operation is selected with the switch, the polarity of one channel is inverted, and the speaker is connected between the two red "hot" output terminals, with an identical input signal (corresponding to one channel, either left or right) being fed into both of the amplifier's inputs. That results in twice the voltage being applied across the speaker, compared to the normal stereo configuration in which the speaker is connected between one hot terminal and ground.
There are a few designs which don't have such a switch but provide for bridged mono operation by always inverting the signal in one channel; having the black output terminal of that channel "hot"; and the red output terminal of that channel in common with ground and the black terminal of the other channel.
But in any event I don't think you would want to operate in bridged mono mode with the Maggies, if they are what you end up purchasing, for three reasons:
1)While bridged mono mode substantially increases the power the amp can put out, it results in the amp seeing the speaker's impedance divided by two. Since the 1.6's are nominally 4 ohm speakers, the amp would see a nominal 2 ohm impedance (undoubtedly even lower at some frequencies), which very few amplifiers can handle gracefully.
2)The S300 in normal stereo operation can put out 300 watts into 4 ohms (twice its rating into 8 ohms).
3)It is generally believed that most stereo amplifiers do not sound quite as good when operated in bridged mono mode, compared to stereo mode.
As an alternative, though, you might want to consider bi-amping, which the Maggie's have provision for. See the comments on bi-amping by the noted designer Steve McCormack (Stevemcx) in this thread: http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1234896660
Regards,
-- Al