[Laundrew]

To update....

I've been talking to Mike Pickett via email & phone (as well as doing a little research myself on the net) and the popping may be caused by a small amount of DC voltage on the outputs.

There is a DC Offset adjustment that can be done on the amps, if required. I tested all three (3) outputs on my 6B and they tested +/- 0.000 volts...perfect.

The 14B SST tested +0.005 & 0.011 volts on outputs. So, we'll do a little adjustment to bring them down to zero (which is where they are targeted to be) and hopefully that takes care of the popping 

Keith

Quick adjustment to DC Offset (+/- 0.000s across the board) but the amp is still popping like a banshee. Funny, even my wife noticed yesterday that the speakers were popping when the stereo was being turned off.

So, I'll send it off to Bryston next week for a look-see.

Keith

Please keep us posted

[KeithA]

Actually, over the weekend I spent a bit more time with the amp and a significant amount of the popping is now gone. Every now and then I'll get a static pop...but mostly it appears that the DC Offset adjustment made a  big improvement.

It's funny becuase after the adjustment the other night I tried a few times and kept getting the pops. However, over the next two days it seems to be a lot better.

We are not talkin about the 'click' of the relays here...these were static 'pops' coming out of the tweeters.

Keith

[KeithA]

Actually, over the weekend I spent a bit more time with the amp and a significant amount of the popping is now gone. Every now and then I'll get a static pop...but mostly it appears that the DC Offset adjustment made a  big improvement.

It's funny becuase after the adjustment the other night I tried a few times and kept getting the pops. However, over the next two days it seems to be a lot better.

We are not talkin about the 'click' of the relays here...these were static 'pops' coming out of the tweeters.

Keith

UPDATE

Last weekend I let the 14B warm up for a couple hours and then measured the DC Offset again. I was still showing some DC on the binding posts, so I did another adjustment.

Now there 'popping' has all but gone. So, I'm pretty sure the problem was a bit of drift I had gotten from the DC Offset.

All is good 

Keith