The Forte Audio 1A is a great amp, however it does have some age and should be serviced. The absolute best person for the job is Jon Soderberg at http://www.vintageamprepair.net After his service, it will likely perform and sound better than it did when new. He was a service manager at Threshold when the amp was introduced for sale.
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!
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!