Speaker 'Noise'
Speaker 'Noise'
As per earlier thread, noise heard from left speaker only. Mostly evenings, but occasionally during the day. Noise remains same with DAC off and P90SA left channel volume at lowest setting (i.e. coming directly from amp). There is nothing new any where near my system; nothing electrical that isn't also by the right channel which is silent.
Captured this evening, here is a link. Will play with VLC or most other apps. What the fook is causing this? Driving me around the bend now to be fair.
Captured this evening, here is a link. Will play with VLC or most other apps. What the fook is causing this? Driving me around the bend now to be fair.
- Dr Bunsen Honeydew
- Posts: 30758
- Joined: Wed Jul 11, 2012 7:26 pm
- Location: Muppet Labs
- Has thanked: 0
- Been thanked: 48 times
Re: Speaker 'Noise'
It is common sense to find something like this, it needs to be logical. So swop speaker leads over between speakers at speaker and if it stays in same channel I would guess bad joint in speaker. if it changes channel then swop speaker leads at amps. If it stays same channel it is bad joint in speaker lead. If it stays same channel then swop input leads to power amps, if it stays same channel it is power amp fault, if it changes channel then change other ends on interconnects etc etc etc = common sense!!! until you find the thing that is causing it and get it fixed.
- Hemmo1969
- Posts: 302
- Joined: Sun Sep 24, 2017 11:57 am
- Location: South Yorkshire
- Has thanked: 17 times
- Been thanked: 7 times
Re: Speaker 'Noise'
That sounds very odd George, very like what mine sounded like when I first got my pre power whenever I turned the volume pot up or down!! Its clear now after I worked the control with nothing attached.
- Dr Bunsen Honeydew
- Posts: 30758
- Joined: Wed Jul 11, 2012 7:26 pm
- Location: Muppet Labs
- Has thanked: 0
- Been thanked: 48 times
Re: Speaker 'Noise'
Yes it could be bad joint upward to failing transistor, first you pin down WHICH item is at fault.
- Fretless
- Posts: 9327
- Joined: Wed Nov 12, 2014 12:15 pm
- Location: Somewhere in Holland
- Has thanked: 1513 times
- Been thanked: 2308 times
Re: Speaker 'Noise'
Follow Doc's advice - swap leads & channels to isolate the problem component.
Listening to your audio file it sounds a bit like one of my old amps with some dust in a switch or pot.
Listening to your audio file it sounds a bit like one of my old amps with some dust in a switch or pot.
Upstairs:
VinylPro-Ject 1.2 + Grado Sig Jr + Cambridge Alva Duo
DigiVolumio PC + Kiss DP-500 + Sabaj A20d
NVA: Cube2 - SSP - LS6+ Sabaj A10a {x2)
Little Bear MC2 + AQ NightHawk
Downstairs:
VinylLogic DM101 + Syrinx LE1 + Grado Sig MCX
DigiDenafrips Ares II + Volumio PC + Cambridge CXC
NVA: P50 & PSU - BMUAiyima A07 MAX + Arcam One
HP: Allo DigiOne + Sabaj A10d + AQ NightOwl
Office: Allo DigiOne SIG + SMSL M300se + Douk G4 (x2)
Mission 760 + Monolith 887 + German Maestro GMP 450
- Dr Bunsen Honeydew
- Posts: 30758
- Joined: Wed Jul 11, 2012 7:26 pm
- Location: Muppet Labs
- Has thanked: 0
- Been thanked: 48 times
Re: Speaker 'Noise'
It might be outside interference but we need to know which bit is letting it in. Even a bad solder joint can cause a diode effect and RF pickup, which is what it sounds like, but other things sound like that.
- Dr Bunsen Honeydew
- Posts: 30758
- Joined: Wed Jul 11, 2012 7:26 pm
- Location: Muppet Labs
- Has thanked: 0
- Been thanked: 48 times
Re: Speaker 'Noise'
Why PM we need to solve it and we are no where nearer to doing that. I don't see how I can explain it more clearly. Someone else try.