Is 4311 'Protection Circuit' fast enough to protect the 4311 against speaker short at high load?
Hi, I have searched and read through this Denon 4311 thread to learn about the function of the 4311's 'Protection Circuit'...and I think that the 'Protection Circuit' will be fast enough to protect the 4311 against speaker short at high load.
But I'm not certain.
Can anybody advise me please.
A little more detail...my situation is, I have 33 year old Quad ESL-63 speakers (just rebuilt, all ES panels replaced and power supply rebuilt).
I have always driven the ESL-63s with a Quad 405-II amp designed for the purpose. The 63 speakers have inbuilt overload protection, i.e., they short the speaker input when an overload is detected...and when that happens it means that the amp driving the 63s has its power output shorted. That's OK for the Quad 405-II amp as its designed to be protected against having its its power output shorted.
Over the past few years I have been using the 4311's (stereo) FL and FR pre-amp line-outs to drive the Quad 405-II amp connected to the ESL-63s...all good.
But my 33 year old Quad 405-II amp just died.
So, I am now wanting to connect the Quad ESL-63 speakers directly to the Denon 4311's (stereo) speaker terminals and use the 4311's own power amps to drive the 63s.
Powers are matched, the 63s need about 100W and the 4311 can deliver that. The 63s are only a moderately difficult load to drive stably and I'm hoping that the 4311 can cope with that.
But, if somehow I overload the 63s, will the 4311 'Protection Circuit' be fast enough to protect the 4311 against speaker short at high load?
Can anyone point to a technical spec or circuit for the Denon 4311's 'Protection Circuit'? I have a friend who is an Electrical Engineer and who will advise me if I can give him sufficient technical info.
Thanks for your help.