4B SST faceplate change

madders · « **on:** 27 Sep 2005, 07:41 pm »

Hi Guys,

I'm looking at getting a 4B SST which has the 19" rackmount faceplate with handles. I would want to change that to a 17" faceplate without handles. What sort of cost will this be approximately? (I guess I should say that I'm in the UK).

Thanks,
Steve

James Tanner · « **Reply #1 on:** 28 Sep 2005, 11:58 am »

Hi Steve,

The faceplates are $200 US.

james

freakygreek · « **Reply #2 on:** 29 Sep 2005, 02:59 am »

Thanks James for the answer can a C-Series faceplate be used and how do I go about ordering one. Do I go through my dealer or direct.

Cheers

Ron D · « **Reply #3 on:** 29 Sep 2005, 04:20 am »

There was a guy selling a used/basically new 4B-SST faceplate for around $80 US and he was located in Canada. Try Audiogon...

madders · « **Reply #4 on:** 29 Sep 2005, 08:30 am »

Thanks James,

By the way - not an easy question to answer, but how different is the 9B SST to the 9B ST? I have the option of buying either to make up 7 channels with my 4B SST, but wondered if the difference in price between the ST and SST versions (about $1,600 US between the 2 on used market) is worth it? Will the improvements of the SST over the ST be obvious?

Thanks,
Steve

James Tanner · « **Reply #5 on:** 29 Sep 2005, 10:21 am »

HI Madders,

BIG DIFFERENCE between ST and SST.
The SST uses a copletely different output stage.

james

madders · « **Reply #6 on:** 29 Sep 2005, 11:55 am »

Thanks for the reply James.

Godfather · « **Reply #7 on:** 29 Sep 2005, 12:42 pm »

Hi James,

Does the 9BSST also have the other improvements of the SST range e.g. double the capacitance?

I've being using both a 9BST and 9BSST for several months and they sound more similar than I expected. Speakers are PMC TB2+ and DB1+.

Thanks.

Henry

James Tanner · « **Reply #8 on:** 29 Sep 2005, 12:46 pm »

Correct the power supply did not change between the ST and the SST just the output section. The advanatge of the new output section is the transistors are a new type which have much lower distortion above 2K.

james'

Godfather · « **Reply #9 on:** 29 Sep 2005, 03:11 pm »

Thanks for the quick reply!

Is the output stage the only difference?

Comparing the distortion figures of the 9BST and SST as recorded in the final checkout reports: at 20K, the average THD (of all 5 channels) at full rated output power of the ST is 0.00427%, compared with 0.00336% for the SST. At 2K, the ST produced an average of 0.00289%, compared with 0.00099% from the SST.

So the 9BST already had extremely low distortion and the SST figures don't look that much better. Should this kind of difference be audible?

James Tanner · « **Reply #10 on:** 29 Sep 2005, 04:54 pm »

The advantage of these new devices besides lower distortion is that they are extremely "linear" above 2K. Usually output transistors have increasing distortion with frequency. So at 10K they have 10 times the distortion relative to 1K. The 'circuitry' and 'fixes' to reduce this effect are serious design issues.

The beauty of this new device is the 'fixes' are substantialy reduced. It is kind of like 'openloop distortion' if it is really low you do not need 'feedback' for correction.

james

Godfather · « **Reply #11 on:** 29 Sep 2005, 08:07 pm »

Thanks for the explanation. That makes a lot of sense.

nicolasb · « **Reply #12 on:** 30 Sep 2005, 09:49 am »

Most of the quoted specs of almost any audio component these days are of very little use, because they're specifically selected to look good. THD is quoted at 1kHz (or whatever) because that's a frequency at which THD is really low. Once any one manfuacturer starts doing this, no other manufacturer can afford to advertise meaningful numbers because it makes them look bad in comparison if they do.

It may, for example, be the case here, for example, that THD at 5kHz or 20kHz is substantially higher - and that the SST figure is substantially better than the ST at that frequency. Since most people don't listen to 1 or 2kHz sine wave tones on their amplifiers, the relevance of THD at that one frequency isn't great.

Godfather · « **Reply #13 on:** 14 Oct 2005, 04:58 am »

James, do you have any old style (not C-series) silver 17" faceplates for the 9BSST left? If so, how much?

Thanks!

James Tanner · « **Reply #14 on:** 14 Oct 2005, 09:12 am »

Faceplates are $200 US each.

james

Godfather · « **Reply #15 on:** 14 Oct 2005, 11:49 am »

Thanks. If they're all the same price I might as well go for a C-series plate.

_andy_ · « **Reply #16 on:** 14 Oct 2005, 03:18 pm »

...it's a nice clean look, i haven't had a chance to look close on mine, but the logo is in relief on the faceplate...i dunno if it's milled in or whether it's an insert...looks cool anyways.

Godfather · « **Reply #17 on:** 14 Oct 2005, 03:39 pm »

I would be most grateful if you could post a picture of your C-series 9BSST. Is it 17" or 19"? Black or silver?

James Tanner · « **Reply #18 on:** 14 Oct 2005, 10:32 pm »

C-Series is available in 19 inch or 17 inch faceplate.

http://www.bryston.ca/9bsst_m.html - 19 inch C-Series

james

_andy_ · « **Reply #19 on:** 15 Oct 2005, 12:01 am »

Quote from: Godfather

I would be most grateful if you could post a picture of your C-series 9BSST. Is it 17" or 19"? Black or silver?

...here's a crap quick & dirty pic of my 9B-sst-C w/ silver 19.......a bit dark but it gets the point across.....

http://www.telusplanet.net/~andys/9B.jpg