I had a similar problem with my tube amp a few years ago, a really loud crack in 1 speaker a minute after starting up. It turned out to be a damaged cap, which was still working, but the top literally snapping off on startup
"Crack" sound in left speaker tube amp
Hi everyone,
I'll try to be as precise as I can be, but I'm not a native english speaker.
First of all, here are the specs :
Power tube Amp - PrimaLuna Prologue Five
Tube Preamp - Shanling MC30
Scandyna "The Drop" Speaker + "The Ball" Subwoofer
Since a few weeks, I can hear a "craking" sound on my left speaker everytime I switch on the Power Amp. I know the problem comes from there because if I connect the speakers to the Shanling MC30 only, the problem doesn't appear.
What does it sound like ? Well, it's like if you unplug a jack from a switched on amp, you know ? This harsh sound that feels like something is tearing apart... When it happens, the speaker seems to shrink in, then out, following this noise, and the sound gets a little lower, mushy.
The noise often occurs some 5-10 minutes after the Power Amp is on, as if it came only after it had heated up. Then it happens every 5 seconds perhaps. And everytime it sounds really scary..
I've tried everything so far : I unplugged everything but it's still the same...
I don't know what to do, I didn't come accross anything like this on any forum. Is it a known issue ?
I hope someone here will have a magical answer ; I always receives great help from you guys !
All the best.
Franz
I'll try to be as precise as I can be, but I'm not a native english speaker.
First of all, here are the specs :
Power tube Amp - PrimaLuna Prologue Five
Tube Preamp - Shanling MC30
Scandyna "The Drop" Speaker + "The Ball" Subwoofer
Since a few weeks, I can hear a "craking" sound on my left speaker everytime I switch on the Power Amp. I know the problem comes from there because if I connect the speakers to the Shanling MC30 only, the problem doesn't appear.
What does it sound like ? Well, it's like if you unplug a jack from a switched on amp, you know ? This harsh sound that feels like something is tearing apart... When it happens, the speaker seems to shrink in, then out, following this noise, and the sound gets a little lower, mushy.
The noise often occurs some 5-10 minutes after the Power Amp is on, as if it came only after it had heated up. Then it happens every 5 seconds perhaps. And everytime it sounds really scary..
I've tried everything so far : I unplugged everything but it's still the same...
I don't know what to do, I didn't come accross anything like this on any forum. Is it a known issue ?
I hope someone here will have a magical answer ; I always receives great help from you guys !
All the best.
Franz