Who has tried HiFi Tuning fuses in their Bryston amps?

James Tanner · « **Reply #20 on:** 16 Sep 2010, 10:53 am »

Quote from: srb on 16 Sep 2010, 05:05 am

James,

Is the Bryston warranty still valid if boutique audio fuses are used that have no safety testing or approval with any of the electrical testing agencies (UL, CSA, TUV, CE, etc.)?

Steve

Hi Steve - yes the warranty is still valid as long as the fuses are not in fact responsible for or cause the failure or contribute more damage to the failure.

james

James Tanner · « **Reply #21 on:** 16 Sep 2010, 10:59 am »

Quote from: Waker on 16 Sep 2010, 02:04 am

Thanks James--now I want to make this tweak. Just curious, is there a history within Bryston of testing amps without the final fused path that is placed in consumer amps?

Hi Waker,

Not officially, but I have run some blind listening tests with a 4B with some of my audiophile friends and some reviewers where one 4B is hard wired and the other is fused.

james

etcarroll · « **Reply #22 on:** 16 Sep 2010, 11:02 am »

While not wanting to go crazy with money I bought a pair of Acme Audio fuses at $10 each, that doesn't strike me as too extravagant, meanwhile the fuses in the amp look like they're fairly new, I'll keep them as spares.

James Tanner · « **Reply #23 on:** 16 Sep 2010, 11:04 am »

Quote from: etcarroll on 16 Sep 2010, 11:02 am

While not wanting to go crazy with money I bought a pair of Acme Audio fuses at $10 each, that doesn't strike me as too extravagant, meanwhile the fuses in the amp look like they're fairly new, I'll keep them as spares.

Please let us know if you hear a difference.

james

James Tanner · « **Reply #24 on:** 16 Sep 2010, 02:26 pm »

Hi folks,

After further investigation:

SST SQ versions of the (4B has 1 fuse) the (7B's have NO fuses), (14B - 1 fuse), (28B's NO fuses), (3B - 1 fuse), (2B LP - 2 fuses), (2B SST - 1 fuse), (9B - 2 fuses per channel), (6B - 2 fuses per channel).

All fuses are on the AC power side only and are NOT in series with the audio circuit path.

James

drummermitchell · « **Reply #25 on:** 16 Sep 2010, 03:20 pm »

James,I imagine the 14sst-2 also no fuses,correct.

James Tanner · « **Reply #26 on:** 16 Sep 2010, 03:25 pm »

Quote from: drummermitchell on 16 Sep 2010, 03:20 pm

James,I imagine the 14sst-2 also no fuses,correct.

14B - 1 fuse.

james

drummermitchell · « **Reply #27 on:** 16 Sep 2010, 03:31 pm »

Jeez I reread the post,the 14,she was there right in front of me,must be over 40

.

James Tanner · « **Reply #28 on:** 16 Sep 2010, 03:44 pm »

Quote from: drummermitchell on 16 Sep 2010, 03:31 pm

Jeez I reread the post,the 14,she was there right in front of me,must be over 40 .

No - I cheated - I added it after you asked.

james

drummermitchell · « **Reply #29 on:** 16 Sep 2010, 03:53 pm »

,very good James.

Waker · « **Reply #30 on:** 16 Sep 2010, 05:24 pm »

Quote

(7B's have NO fuses),

I am officially announcing the cancellation of my fuse tweak project.

Anonamemouse · « **Reply #31 on:** 16 Sep 2010, 05:41 pm »

Quote from: James Tanner on 16 Sep 2010, 02:26 pm

...SST SQ versions of the (4B has 1 fuse)...

All fuses are on the AC power side only and are NOT in series with the audio circuit path.

James

Hmm... This could be interesting. I am willing to order new fuses for my 4B SST2, can you tell me what the values are for them? That way I'll only have to open my amp once. Is it one fuse for the whole amp, or one per channel? And any chance of a picture with the exact location?

James Tanner · « **Reply #32 on:** 16 Sep 2010, 06:17 pm »

Quote from: Anonamemouse on 16 Sep 2010, 05:41 pm

Hmm... This could be interesting. I am willing to order new fuses for my 4B SST2, can you tell me what the values are for them? That way I'll only have to open my amp once. Is it one fuse for the whole amp, or one per channel? And any chance of a picture with the exact location?

It's in the center right at the back of the 4B.

12 amp for 120v.

6.3A for 240v.

6.3 is slow acting and the 12 amp is fast blow.

james