What is a "Current Dumping amp??".. and Pros/Cons


Quad Audio's 909 amp uses a "current dumping" design. What exactly is the advantage or disadvantage of such a design?? The TAS reviewof the amp in issue #207 claimed that this might not be the amp for buyers,looking for deep or tight bass.

I have seen several of these amps on sale over the last year. I wonder the trend says this is just another soft sounding British amp with below average dynamics

Will greatly appreciate an explanation of this design principle, and any comments about the Quad 909's sound quality. BTW, over the years, I have read that high current amps usually have deep bass and very good bass control. I owned a Aragon 4004 MKII about 25 years which proved that issue in spades. Thanks
sunnyjim
I'd be careful not to tie the overall sound of a component to one aspect of it's design.
Sunnyjim,
here is a very good article (technical tho' I MUST warn you!!) on "current dumping":
http://www.richardbrice.net/curdump.htm

please read - it should educate you sufficiently.....
Thanks.