Bridging an amplifier
Please explain if you disagree, I’m kinda new to this :)Just search Google "cons of bridging amplifiers" or "disadvantages of bridging amplifiers" there’ll be pages and pages to read. Looking at the Luxman’s M-900u specs, doesn’t it still have great specs when used as a monoblock?If they put them in print, only the ones they want you to see. Almarg (rip) will also tell you the cons. https://forum.audiogon.com/posts/1762093 Cheers George |
I would say many comments made here are made by people without a deep understanding of amplifier design and are just parroting comments made by others without deep amplifier design knowledge. Potential advantages of bridged amps (if properly designed for the purpose). - inherent cancellation of even order distortion products which can be especially beneficial at low power (biggest advantage) - reduced distortion by reducing voltage swing allowing devices to operate over more linear ranges of operation - improved power supply rejection ratio - related to above, better rejection of IM and THD products from audio modulation of the power supply |
"techs"? ... That's laughable. I have read some of Almargs posts. Intelligent and knowledge guy and sorry that he passed before I could interact with him, but yes, on amplifier and audio technology based on his own writings I have more likely significantly more knowledge. However, as he alluded in his post George which likely went over your head is a balanced amplifier design of which a special case of a bridged design. However, a mistake made by many, and I believe by Almarg but maybe he was just simplifying for the likes of you was the belief that you must have perfect gain matching on both channels which is not at all true. Gain mismatch shows as offset, it does not in itself make a distortion product hence why the benefits of 2nd order cancellation and power supply / power supply modulation rejection carries through as does the benefit of reduced voltage swing as it relates to distortion. |
