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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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I've got a Jolida JD1501S amp that every so often blows its fuse. It happens when powering up from standby doesn't happen on the first press and someone presses a second time in too quick succession. It's been like this for years but a technician who looked into it couldn't find what was wrong... any suggestions on the matter?
For this reason I only use cheap-ass fuses. I few months back I blew the fuse and went and got a replacement and spare. I'd read about fuse orientation here and so spent a little time switching back and forth between the two orientations. It did seem like one way sounded better than the other so I stuck with it. At the time I wasn't convinced that I wasn't imagining things, as is so often the case when I switch back and forth between things - I sort of end up trusting my gut.
So a few weeks back my girlfriend, who had just moved in and hadn't quite got acquainted with 'the rules', caused the fuse to blow. She panicked but this time I didn't yell at her - I knew how to fix it. I swapped in the spare in the same orientation as before, as judged by the writing on the ends. The sound seemed more 'brittle' than it was before the fuse blew, but I just put that down to it not being broken in. However, after a couple of weeks, when break-in must have been less of an issue, I found the sound was not as enjoyable as from the weeks before the fuse blew. In fact, it was almost unlistenable in comparison. I thought that such a major difference couldn't be caused by a fuse but some other change that I'd made along the way.
In the end I did swap it round, a couple times, and settled on one orientation that, again, 'seemed' to sound better, irrespective of what was written on the ends of the fuse (I'm pretty sure it's the other way round to what the previous fuse was). Well, lo and behold, within a couple days it became obvious that the old sound was back; almost with a vengeance. A brittle and almost irritating sound, which I was about to go on another wave of tweaking to try to improve, was replaced with a much fuller, more musical and bass-laden presentation that leaves me with *no* desire to make changes.
The change was a fundamental one and another example of how, in this bizarre hobby, the smallest, most seemingly insignificant difference can be make-or-break for the musicality of a sound system. I wonder if this mirrors anyone else's experience?
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Topic - Fuse orientation change - a real eye-opener - Japesgalore 12:03:32 04/15/10 (67)
- RE: Fuse orientation change - a real eye-opener - ToneMad 03:51:17 05/01/10 (0)
- AC Fuse orientation - stvnharr 19:52:17 04/17/10 (9)
- Consider - unclestu 18:08:18 04/18/10 (0)
- RE: AC Fuse orientation - Japesgalore 19:57:53 04/17/10 (7)
- Fuse orientation - stvnharr 01:52:20 04/18/10 (2)
- RE: Fuse orientation - Japesgalore 07:12:32 04/18/10 (1)
- RE: Fuse orientation - stvnharr 15:10:18 04/18/10 (0)
- RE: AC Fuse orientation - jbcortes 01:13:56 04/18/10 (3)
- RE: AC Fuse orientation - Japesgalore 08:29:13 04/18/10 (2)
- RE: AC Fuse orientation - Sebrof 14:52:09 04/18/10 (0)
- RE: AC Fuse orientation - jbcortes 09:19:22 04/18/10 (0)
- RE: Fuse orientation change - a real eye-opener - DaveT 07:59:43 04/16/10 (0)
- RE: Fuse orientation change - a real eye-opener - ramw 02:00:58 04/16/10 (0)
- Audiophilia nervosa... - jbcortes 01:38:07 04/16/10 (52)
- All science is based on observations. - Norm 07:26:07 04/17/10 (4)
- What most people - unclestu 14:17:56 04/21/10 (1)
- Correction - unclestu 02:00:57 04/23/10 (0)
- Hear hear! - rick_m 08:51:59 04/17/10 (1)
- RE: Hear hear! - unclestu 18:05:35 04/18/10 (0)
- RE: Audiophilia nervosa... - Sebrof 19:03:35 04/16/10 (43)
- Hah, you're on! - Japesgalore 17:13:01 04/17/10 (42)
- RE: Hah, you're on! - Sebrof 19:56:41 04/17/10 (41)
- RE: Hah, you're on! - Japesgalore 20:34:43 04/17/10 (40)
- RE: Hah, you're on! - Sebrof 07:12:23 04/18/10 (39)
- "Actually I believe it's the science of how our brains perceive the world around us, and it's very well known. - Norm 07:26:13 04/18/10 (36)
- RE: "Actually I believe it's the science of how our brains perceive the world around us, and it's very well kn - Sebrof 08:23:21 04/18/10 (35)
- Just out of curiosity... - unclestu 17:45:06 04/18/10 (21)
- RE: Just out of curiosity... - Sebrof 18:34:31 04/18/10 (20)
- Galileo. - unclestu 20:17:28 04/18/10 (19)
- Stu... - jbcortes 00:26:47 04/19/10 (6)
- Interesting - unclestu 01:56:06 04/19/10 (5)
- RE: Interesting - jbcortes 02:57:52 04/19/10 (4)
- regarding measurements - unclestu 14:33:18 04/21/10 (0)
- Everything you say up to a point I can agree with. - Norm 09:03:26 04/19/10 (2)
- RE: Everything you say up to a point I can agree with. - jbcortes 09:10:14 04/19/10 (1)
- No further comment is needed, especially after "speaks volumes!"nt - Norm 09:22:34 04/19/10 (0)
- RE: Galileo. - Sebrof 21:11:54 04/18/10 (11)
- And yet - unclestu 01:45:38 04/19/10 (10)
- Since you're mentionning wine, have you heard of the Brochet experiment? - jbcortes 06:54:55 04/19/10 (9)
- Too bad - unclestu 11:46:50 04/19/10 (8)
- We've both expressed our points, that's fine - jbcortes 13:37:16 04/19/10 (7)
- Don't know - unclestu 18:34:28 04/19/10 (6)
- RE: Don't know - jbcortes 23:34:30 04/19/10 (5)
- Sheesh! - unclestu 13:43:22 04/21/10 (4)
- Fine then! - jbcortes 13:50:06 04/21/10 (3)
- "make me believe that it does" - unclestu 15:55:53 04/21/10 (0)
- Seems to me - unclestu 15:45:19 04/21/10 (1)
- RE: Seems to me - jbcortes 00:06:05 04/22/10 (0)
- You don't know anything about science. And to state that something is impossible is evidence of this. nt - Norm 09:20:08 04/18/10 (12)
- Actually Sebrof is absolutely right (nt) - jbcortes 09:57:24 04/18/10 (11)
- Only if you want to believe we know everything about nature's laws. - Norm 15:10:17 04/18/10 (10)
- RE: Only if you want to believe we know everything about nature's laws. - Sebrof 16:33:06 04/18/10 (9)
- I stand by my posting that you are too quick to judgment about what science knows. - Norm 18:03:24 04/18/10 (8)
- The problem here... - jbcortes 00:19:05 04/19/10 (7)
- I hear a difference when I don't know which is in. What is your conclusion? - Norm 08:50:33 04/19/10 (6)
- I say it's totally meaningless unless validated by a blind test - jbcortes 09:00:29 04/19/10 (5)
- All that I can say is that your statement is totally meaningless to me & invalid. - Norm 09:19:55 04/19/10 (4)
- Pity - jbcortes 09:48:01 04/19/10 (3)
- With your condescension you should expect an angry retort. - Norm 12:54:06 04/19/10 (2)
- RE: With your condescension you should expect an angry retort. - jbcortes 13:45:46 04/19/10 (1)
- I see no value in even a "good" blind test and am surprised that you do, but hey we all do what we want. nt - Norm 10:01:38 04/21/10 (0)
- RE: Hah, you're on! - Japesgalore 07:25:08 04/18/10 (1)
- RE: Hah, you're on! - Sebrof 14:58:13 04/18/10 (0)
- RE: "I couldn't tell them apart." - 1973shovel 04:36:28 04/16/10 (2)
- RE: "I couldn't tell them apart." - jbcortes 05:26:44 04/16/10 (1)
- Thanks, that's what I thought you meant - 1973shovel 19:10:17 04/16/10 (0)
- It depends on the system and gear but... - kuma 22:08:16 04/15/10 (0)