Hi all,
I tried searching the net but could not find anything on this.
Also I'm sorry if I've posted this in the wrong section. Feel free to move it to the correct section.
I have an issue with a Dayton SA 1000 Sub amplifier.
Link here: Dayton Audio SA1000 Subwoofer Amplifier Rack Mountable 300-811
I'll try to explain it as best as I can but its a weird issue.
Basically, when turned up to a moderate volume (no where near flat out) I hear a squeak sound from the sub woofer driver on the decay of a bass thump.
It only lasts a fraction of a second and follows the bass note/thump decay (this squeak is above the normal sub freq range, sounds like about the 1khz-5khz region so i assume its being produced after the low level crossover section as the sub bass is only operating below 100hz or so)
If it helps, this amp has what they call a patented tracking down-converter power supply.
After a bit of searching on this site, I found this thread: http://www.diyaudio.com/forums/solid-state/5298-carvers-tracking-downconverter-thoughts.html
Also, another clue to this issue could be that when the amp is just idling, on the main amplifier board I can just hear, very faintly a mild buzzing noise, like something is resonating. Its very soft but its there.
Then when playing bass notes (at any volume, even quite softly) the buzzing noise from the amplifier board seems to get a little louder and change in sympathy with the bass notes produce by the subwoofer driver. Maybe that's not an issue but I think its worth mentioning anyway.
But then when I turn it up enough to cause the issue mentioned at the beginning of my post, that same sounding squeak seems to come from the amplifier board, in sympathy with the subwoofer driver.
As its got one of those fancy power supplies, I'm thinking the fault must lie there somewhere?
I know for a fact its not a faulty sub driver making the squeaky noise as I've tried more than one type of driver with this amplifier, and also both those drivers are fine when driven by another amplifier.
For the record, both drivers I've tried are 8 ohms, so I'm not even using a 4 ohm load which it should handle.
Any help will be appreciated.
Thanks.
I tried searching the net but could not find anything on this.
Also I'm sorry if I've posted this in the wrong section. Feel free to move it to the correct section.
I have an issue with a Dayton SA 1000 Sub amplifier.
Link here: Dayton Audio SA1000 Subwoofer Amplifier Rack Mountable 300-811
I'll try to explain it as best as I can but its a weird issue.
Basically, when turned up to a moderate volume (no where near flat out) I hear a squeak sound from the sub woofer driver on the decay of a bass thump.
It only lasts a fraction of a second and follows the bass note/thump decay (this squeak is above the normal sub freq range, sounds like about the 1khz-5khz region so i assume its being produced after the low level crossover section as the sub bass is only operating below 100hz or so)
If it helps, this amp has what they call a patented tracking down-converter power supply.
After a bit of searching on this site, I found this thread: http://www.diyaudio.com/forums/solid-state/5298-carvers-tracking-downconverter-thoughts.html
Also, another clue to this issue could be that when the amp is just idling, on the main amplifier board I can just hear, very faintly a mild buzzing noise, like something is resonating. Its very soft but its there.
Then when playing bass notes (at any volume, even quite softly) the buzzing noise from the amplifier board seems to get a little louder and change in sympathy with the bass notes produce by the subwoofer driver. Maybe that's not an issue but I think its worth mentioning anyway.
But then when I turn it up enough to cause the issue mentioned at the beginning of my post, that same sounding squeak seems to come from the amplifier board, in sympathy with the subwoofer driver.
As its got one of those fancy power supplies, I'm thinking the fault must lie there somewhere?
I know for a fact its not a faulty sub driver making the squeaky noise as I've tried more than one type of driver with this amplifier, and also both those drivers are fine when driven by another amplifier.
For the record, both drivers I've tried are 8 ohms, so I'm not even using a 4 ohm load which it should handle.
Any help will be appreciated.
Thanks.
Does anyone have any ideas at all? Or at least a link or similar?
I am technically minded to fix gear like this, but the problem is I have no circuit diagram or service manual which makes things highly difficult.
Also, I'm in Australia, so there's not much info or knowledge out here on this amp.
Once again any help is appreciated. 🙂
I am technically minded to fix gear like this, but the problem is I have no circuit diagram or service manual which makes things highly difficult.
Also, I'm in Australia, so there's not much info or knowledge out here on this amp.
Once again any help is appreciated. 🙂
No one at all? 😕
Does anyone know of another forum I should post this in that may be able to help?
Does anyone know of another forum I should post this in that may be able to help?
I have the diagrams - on my work computer - shoot me an email and I can mail them to you tomorrow.
pbnaudio@me.ocm
Best of luck
Peter
pbnaudio@me.ocm
Best of luck
Peter
That would be fantastic, but for some reason I can't send an email to you. It rejects the above email address address. 🙁
I have a SA1000 I have been using for just under a year and have the exact same Prob just showed up last night, the buzz starts at 65Hz and down (very annoying) once the amp warms up it starts at 45Hz and down. Tonight I will troubleshoot to make sure it is not my speakers (even though I am pretty sure it is the amp from reading this forum). I will use a different amp with the speakers and use different speakers with the amp. Will keep you guys posted on what I find in the next couple of days.
Thanks
Thanks