Benchmark AHB2 - To 'mono' or not to 'mono'

Electrical damping occurs because moving coil generates voltage that produces current in direction that causes motion of the membrane in opposite direction hence stopping the membrane.  This current is equal back EMF (voltage on the speaker) divided by impedance in the circuit that consists of amplifiers output impedance, cable impedance, and the driver itself.  At the end it comes to 6.1ohm vs 6.05ohm difference (about 1%).  Also for the same reason the highest effective damping that can be achieved is equal about 1.5 (nominal speaker's impedance divided by resistive part of this impedance).  It might explain why some tube amps, that have very low DF (as low as 1.5), still sound great.

There might be other reasons why some amplifiers sound worse when bridged. It might be unregulated (in most cases) power supply voltage that is sagging when twice the current is demanded.  AHB2 power supply is line and load regulated and should not sag.   From all the reviews, I've read, AHB2 sounded even better in bridged mode.

You lost me.  What do you mean by bridged.  Why would you ever want mono.  Wouldn’t you lose stero?  Wouldn’t this be like listening to an AM radio.  I still don’t understand why people would ever buy a $20,000 turn table because don’t you looses lot of detail compared to digital by way of CD player.  The first thing I noticed when hearing vinyl is the crisp highs disappeared such as cymbals.  The tightness of sound disappears and sounds muddy.  I have read articles about this and many think listening to music played on vinyl sounds inferior to digital.  Vinyl sounds warmer but the detail disappears.  I like to hear the detail.  Kind of compares to listening to compressed music as compared to listening to 16 and 24 bit.

Clean up aisle 7

I love this amp! Absolutely, definitely, without any doubt what so ever get another one!
Not sure what planet we are living on but when you mono strap this amp you drop the impedance of the output stage and increase the damping factor! Not only that but power is everything in an amp. The ability to handle dynamic peaks without clipping just makes a system sound so much more alive and this amp does the mono strap routine as well or better than any other amp I have tried it with. I do not think you could make a bigger, better improvement for $3k in any otherwise well set up system. And, these amps do a very creditable job of driving my speakers (with the addition of a 3/4 ohm series resistor in the primary) which means they will drive anything. The build quality is absolutely top notch. You will never have a reason to buy another amplifier. 

Why people find posting this sort of stuff amusing is beyond me. Yawn.