Thanks for chiming in, Ralph.
Regarding the earlier discussion of the LS36.5’s output impedance, after researching a little further I see that its outputs are transformer coupled, rather than capacitor coupled. And as previously stated its output impedance is nominally specified as 110 ohms. So it should have no trouble driving relatively low impedances, including the 7.5K impedance it would have been driving when Lalit tried using the amps in a vertical biamp configuration.
Given that, I have no idea why he would have found the vertical biamp configuration to result in a less weighty deep bass compared to running the amps in bridged mode.
Regards,
-- Al
Regarding the earlier discussion of the LS36.5’s output impedance, after researching a little further I see that its outputs are transformer coupled, rather than capacitor coupled. And as previously stated its output impedance is nominally specified as 110 ohms. So it should have no trouble driving relatively low impedances, including the 7.5K impedance it would have been driving when Lalit tried using the amps in a vertical biamp configuration.
Given that, I have no idea why he would have found the vertical biamp configuration to result in a less weighty deep bass compared to running the amps in bridged mode.
Regards,
-- Al