You didn't say what it would be used in. The answer commonly would be yes, but it's hard to say without knowing the equipment and maybe how the developer has rated the fuse requirement -- most but not all way overrate to account for different situations. And it's not just the value but also slow or fast blow type (most use slow-blow). I have a tube preamp that is rated for 2A, but the developer suggested 3.15A to be safe, but when I plugged in a second set of output ICs for subs, even though the subs weren't on, the fuse blew right off. So I went to an 4A Orange.
Audiophile Fuses
- Thread starter MylesBAstor
- Start date
Clayton M-300 amps, fast blow. I haven’t inquired to the developer yet, but I was generally wondering if using 10A fuses where 6A are recommended would harm the amps.
The M-300 manual online, p.11, says it takes three 5A fast blow fuses (and should be replaced by the same value). Is that not up to date? It's tricky asking a developer, especially when you're talking about more or less doubling the value (vs. maybe 1.25-1.5x as much. Maybe someone here can explain why a manufacturer might use fast blow fuses, and the implications for your application. Also, a search for "Clayton M300 forum" shows a few Clayton threads on Audiogon where you might ask very specifically if anyone has used SR Oranges in theirs (I would ignore those who say never change recommended fuse values, unless they give a reason specific to Clayton or fast blows).
The problem with asking the developer is that they are apt to say NO!, no matter what. I would think they have to be very careful for legal and financial/warranty reasons. You could pose it this way: "I'm interested in using SR Orange fuses, but because they are not made to industry standards, they've been known to blow at spec. So it's common for people to use the next size up." Then see what they say. But it's hard to imagine them saying OK to 10A. That's why I suggest searching out other owners first to get the lay of the land.
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Understood. That’s why I hesitated to begin with. I haven’t found any discussion regarding the M-300 and aftermarket fuses, which is why I posted here. Thanks for the suggestions. The amps are not in warranty so no problem there. Another reason I reached out to the developer.
I also went down this fuse rabbit hole-I have a PSU input at T3.15A (Slo)-thought to try the following all at correctT rating for the unit
AMR --all blew on turnon lost $
Synergistic Research --all blew on turnon lost $$'s
Hif Fi supreme --all blew on turnon lost $$$'s
Furutech --all blew on turnon lost $$$$'s
Restored factory supplied same ratingT Fuse 3.15A--startup immediate-- checked same procedure all fine.
My thoughts are those fancy wallet drainers above do not have any surge capabilities--or am I missing something.
Anyway lost enough on that palaver--
Caveat Emptor
BruceD
AMR --all blew on turnon lost $
Synergistic Research --all blew on turnon lost $$'s
Hif Fi supreme --all blew on turnon lost $$$'s
Furutech --all blew on turnon lost $$$$'s
Restored factory supplied same ratingT Fuse 3.15A--startup immediate-- checked same procedure all fine.
My thoughts are those fancy wallet drainers above do not have any surge capabilities--or am I missing something.
Anyway lost enough on that palaver--
Caveat Emptor
BruceD
Thanks for posting.I also went down this fuse rabbit hole-I have a PSU input at T3.15A (Slo)-thought to try the following all at correctT rating for the unit
AMR --all blew on turnon lost $
Synergistic Research --all blew on turnon lost $$'s
Hif Fi supreme --all blew on turnon lost $$$'s
Furutech --all blew on turnon lost $$$$'s
Restored factory supplied same ratingT Fuse 3.15A--startup immediate-- checked same procedure all fine.
My thoughts are those fancy wallet drainers above do not have any surge capabilities--or am I missing something.
Anyway lost enough on that palaver--
Caveat Emptor
BruceD
The developer of the M-300 said this:
“M300 shipped with 6A fuses, you can use up to 8A or even 10A if the unit is stable for a while for some end user say use higher amps. fuse will make the unit sound better. But must use the FB fast burn type fuse. the slow burn fuse structured with a small coil which will caused high frequency distortion. Any electronics device need to follow the NEC code to have fuse for protection from any accident.”
So 10A would theoretically work. Now if my friend could find his 10A Oranges...
Hi, I just began to use my EAR 890 again, now on a granite slab with SR Mig-Sx footer in the warm position, ECTs and GCTs as well. It sounds fabulous with the stock fuse. I ordered an SR Orange fuse. I had great success on a highly modded Dynaco ST70 and a pair of tubed 125w. monoblocks using the SR Blue fuse (incredibly superior than the stock fuse). My friend did not like the SR Blue fuse on his EAR 864 pre-amp. Is it possible that the EAR line only likes stock fuses?
Recently replaced stock with SR Orange fuse in my CAT JL7 SE. Initial several hours sound was muffled before opening up nicely. Overall I like the changes ... adds a level of refinement to the sound. I had similar positive results with ARC and VAC using SR fuse.
Some gears, ie: Hegel H30, various ModWrights ... heard no differences. I think SR offers a 30 days free trial so no risk checking it out.
Some gears, ie: Hegel H30, various ModWrights ... heard no differences. I think SR offers a 30 days free trial so no risk checking it out.
I had the same experience in combination with my Spectral amp.I also went down this fuse rabbit hole-I have a PSU input at T3.15A (Slo)-thought to try the following all at correctT rating for the unit
AMR --all blew on turnon lost $
Synergistic Research --all blew on turnon lost $$'s
Hif Fi supreme --all blew on turnon lost $$$'s
Furutech --all blew on turnon lost $$$$'s
Restored factory supplied same ratingT Fuse 3.15A--startup immediate-- checked same procedure all fine.
My thoughts are those fancy wallet drainers above do not have any surge capabilities--or am I missing something.
Anyway lost enough on that palaver--
Caveat Emptor
BruceD
The fuse blow during power-on.
The ampere rating was already higher than the stock fuse.
After some research i found that:
Synergistic Research blue fuse
S 2,5A 500V
I2t = 19
Stock fuse Spectral Power Amp:
BUSSMANN MDL-1-1/4
S 1,25A 250V
I2t = 86,2 !!!
The inrush current is too high for the SR fuse.
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I use the fuse my amp manufacturer delivers with the amplifier , i never have had a fuse blow.
Happy listening
Happy listening
;-) I was just curious on the SR fusesI use the fuse my amp manufacturer delivers with the amplifier , i never have had a fuse blow.
Happy listening
Yeah , but if something in your amp snaps as well , their aint no manufacturer who s gonna repair it as far as guarantee is concerned
Risky business all this fiddling afaik
I don’t like fiddling with after market fuses either, but when I sent my McCormack amp in for the rebuild, they recommended the SR Blue fuse which they had already installed for testing before shipping it back to me. So, I figured it was OK. No problems in almost 2 years.
I did have to reset the home installation circuit breaker quit often in my appartment in amsterdam when i started the 100 watts CAT though .
The power bank in that amp draws so much current /electricity on start up its unreal , here in brussels where i live now , the amp starts flawless luckily
Never had this problem at start up with my Boulder 1060 or Krell evo 400 monos i used to own .
But i also never had a fuse break in either of them , i think easy to drive speakers helps a lot , putting much less strain on the amp .
The power bank in that amp draws so much current /electricity on start up its unreal , here in brussels where i live now , the amp starts flawless luckily
Never had this problem at start up with my Boulder 1060 or Krell evo 400 monos i used to own .
But i also never had a fuse break in either of them , i think easy to drive speakers helps a lot , putting much less strain on the amp .
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Well, IMHO when we have such problems it is due to a poor option in the amplifier design or a faulty circuit breaker. Manufacturers can easily include a soft start that has no effect in sound quality.
Are you addressing power circuit breaker or the differential breaker?
I think it was the circuit breaker which limits the max amount of current for a certain device .
I think the huge Capacitators in the power bank of the CAT just need to fill up at start up .
Nothing bad i just flip the circuit breaker switch up again and voila , power .
And when you listen its easily forgotten , and as i said here in belgium the circuit breaker has likely more headroom as i never have had to restart it.
It has major advantages regarding dynamics though , i have never heard any amp as authoritive as a CAT , it beats the 300 watts Boulder and 400 watts krell evo s by a large margin, so no complaints
I think the huge Capacitators in the power bank of the CAT just need to fill up at start up .
Nothing bad i just flip the circuit breaker switch up again and voila , power .
And when you listen its easily forgotten , and as i said here in belgium the circuit breaker has likely more headroom as i never have had to restart it.
It has major advantages regarding dynamics though , i have never heard any amp as authoritive as a CAT , it beats the 300 watts Boulder and 400 watts krell evo s by a large margin, so no complaints
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