White Noise / Interference ?

[Russell Spencer]

Morning,

I purchased a B2 before christmas and have been ripping plenty of CD's since then, but it was only this last weekend that I connected it up to speakers properly and listenend to it.

During quiet sections of the tracks I can hear some white noise, it is only faint but noticeable.

To test this, I turned the volume down completely, stopped the track, the noise went, started the track, the noise came back. I have tried several tracks/cds etc and this happens on them all.

If I go to bluetooth headphones, the noise dissapears, so it seems it is the speaker outputs that are of concern. I have tried swapping leads around, moving power supplies (as other thread suggests) but nothing seem to work.

Any other suggestions ?

I will be driving it through a 30w Denon amp via toslink when it arrives and I suspect this will cure the problem, however I will still have a slightly dodgy B2.

Speakers are 6 ohm, 75w QAcoustics, connected on high quality cables

cheers

[PMB]

Hi Spencerf...,

From your description it does sound like a possible fault with the power amplifier stage - it is a digital amplifier so you may be hearing some switching noise.

There will always be some noise at low level - is it audible on quiet passages or only when the B2 is paused?

Paul

Brennan Support.

[Russell Spencer]

as soon as I press play, and turn the volume to zero, its there constantly, the best I can describe it is like wind blowing through a gap in a window during a gale, if I press pause it stops. I also noticed tonight, whilst it was backing up over the wi-fi that there are static clicks, in time with the blue light on the the wi-fi arial, so I removed both usb devices (bluetooth and wi-fi) and tried again, the low level noise was there still but static clicks had gone so it is picking up some interference from the wi-fi also.

As mentioned, I have an amplifier on the way, I will see how it behaves with the Toslink connection and will re-post an update, but even if this does improve the situation I think it will still need action to resolve the problem.

cheers

Russell

[PMB]

Hi Russell,

OK let us know how it goes with the amplifier.

Paul

Brennan Support.

[Davywhizz]

Are you able to try wired headphones? That would help confirm the problem is at the power amp/speaker outputs rather than further back in the signal path.

[Michael Sneade]

I have a B2 which is approximately 4 years old. I have just noticed that I am getting white noise through my speakers at the end of tracks, just for a second or two. Nothing through head phones. 

[Russell Spencer]

I have tried wired headphones and there is no noticeable white noise when used

On Wednesday, January 5, 2022 at 12:06:13 PM UTC Davywhizz wrote:

[PMB]

Hi spencerf...,

That appears to narrow it down to the amplifier stage. Your unit can either be replaced or repaired. Please email us on -   thebrennanb2   @   gmail   .   com   - no spaces, with a brief description of the issue and we will get it sorted.

Paul

Brennan Support.

[PMB]

Hi Mike,

Does this happen on all Tracks?

Paul

Brennan Support.

[Michael Sneade]

Hi Paul. 

Yes, every track. It seems that it is only affecting one speaker. I thought I would check the speaker so I swapped over the leads and the white noise went to the other speaker. I did suspect the speaker lead so i have ordered a new set from you. 

Mike

[Davywhizz]

Good to see progress on this. I'd just thought to ask if the noise was on both channels or just one but you beat me to it.

[Michael Sneade]

Ok, I have replaced the speaker leads and swapped speakers but I am still getting a hiss/white noise from one speaker at the end of every track. Anybody?

[PMB]

Hi Mike...,

As the hiss noise is only affecting one channel I would suspect a faulty amplifier chip. Please email us on -   thebrennanb2   @   gmail   .   com   - no spaces, with a brief description of the problem and we will send the return for repair instructions.

Paul

Brennan Support.