Power on popping sound


Hi Everyone!

Why does the left speaker always make a "pop" noise when the amp powers up?  Also, after preamp and amp are powered up there is a low buzz coming from the left speaker.  Not sure if I can hear the buzz from the right speaker.

The left speaker also makes a "whoosh" sound when powering off the amp.  

Getting paranoid about speaker damage.

Gear:
Speakers:                    Ologe 5 (Same thing happens with my LS 50 passives)
Amp:                            Forte Audio 1A 
Temporary preamp:     ADA Suite 8x8 - (I might pick up an Audible Illusion Modulus 2B but am open to suggestions.)
I also swapped in my Fostex HP A8 as a preamp and got the same popping and buzzing.
Rocket 88 speaker cables

Thanks!





hleeid

Showing 1 response by tomcarr

In addition to the excellent advice from the above posters, always remember LOFO (amp is last on, first off). Turn-on sequence should always be: source(s), pre-amp, amp. Turn-off sequence should always be amp, pre-amp, source(s).

Tom