Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 3 1 2 3
Fuses for EP sub??
#168444 05/19/07 06:23 PM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
I found 2 blown 5 x 20mm 250mA fuses on my EP500 today and no one in town has 'em. Short of contacting Axiom, any suggestions? Tried Home Depot and Radio Shack...

Thanks,

Scott


Scott

My HT
Re: Fuses for EP sub??
a401classic #168445 05/19/07 08:30 PM
Joined: Jan 2004
Posts: 13,840
Likes: 13
shareholder in the making
Offline
shareholder in the making
Joined: Jan 2004
Posts: 13,840
Likes: 13
You might want to call Axiom, as it may be a warranty issue. Strange, your the first person I've heard of having blown fuses since the EP's came out.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: Fuses for EP sub??
SirQuack #168446 05/19/07 08:53 PM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
Quote:

You might want to call Axiom, as it may be a warranty issue. Strange, your the first person I've heard of having blown fuses since the EP's came out.




What can I say, I'm special I've got an email out to the folks at Axiom. Just bummed cause we had a movie set for tonight - just Shrek II, but I'll miss the effects just the same.


Scott

My HT
Re: Fuses for EP sub??
a401classic #168447 05/19/07 09:41 PM
Joined: Jan 2007
Posts: 10,490
Likes: 116
M
shareholder in the making
Offline
shareholder in the making
M
Joined: Jan 2007
Posts: 10,490
Likes: 116
Why did the fuse blow?

Re: Fuses for EP sub??
Mojo #168448 05/19/07 11:06 PM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
Good question. I know we had a brown-out earlier in the week and I had to hit the power button on my amp (12v triggered from pre-pro) to get it running again - I guess there's a fail-off built in on power out. I've got a reasonable volume limit set on my pre-pro (-20) which is still 105dB give or take and the sug gain at the 7:30-ish position. I think if my kids had cranked it up the wife would have known. Must have been related to the brown-out. But why the secondary, 250mA fuses and not the 15A main fuse?? I found some 0.315A fast blow at RS, but I'm not willing to risk the warranty. The sub is also the only piece of audio equipment not plugged into a Brickwall box. Time to ditch the "surge" suppressor and run a cord to one of the Brickwall units.

Scott


Scott

My HT
Re: Fuses for EP sub??
a401classic #168449 05/19/07 11:36 PM
Joined: Jan 2007
Posts: 10,490
Likes: 116
M
shareholder in the making
Offline
shareholder in the making
M
Joined: Jan 2007
Posts: 10,490
Likes: 116
A brown-out would have certainly caused the power supply to draw more current. The main fuse may be slo-blo and these secondary fuses may be fast blow. This could be the reason.

Do you know what the purpose of these secondary fuses is (ie. what are they protecting)? I have them on my EP600 but they are not described in the manual.

Re: Fuses for EP sub??
Mojo #168450 05/20/07 06:20 AM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
Not sure. At 250mA I'm guessing some sort of ground fault protection?? They are slo-blo, as well. Found a cross-reference to a gibson guitar amp, so I'll call the local guitar shop and see if they can help me.
To the best of my knowledge, the system was in stand-by mode during the brown-out, so not sure why they would have popped.

Last edited by a401classic; 05/20/07 06:23 AM.

Scott

My HT
Re: Fuses for EP sub??
a401classic #168451 05/21/07 02:13 AM
Joined: Sep 2005
Posts: 50
buff
Offline
buff
Joined: Sep 2005
Posts: 50
Out of curiosity, where are the fuses you are talking about?
I have the EP500. I only see the fuse near the power switch.


maphiker
Re: Fuses for EP sub??
maphiker #168452 05/21/07 02:54 AM
Joined: Jan 2007
Posts: 10,490
Likes: 116
M
shareholder in the making
Offline
shareholder in the making
M
Joined: Jan 2007
Posts: 10,490
Likes: 116
You may not have these fuses. They were added in a later version of the amplifier.

Re: Fuses for EP sub??
maphiker #168453 05/21/07 05:59 AM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
The ones to the right of m in Axiom on the back panel
[image]http://www.axiomaudio.com/gallery_disp.html?image=amp.jpg&title=EP500[/image]

Edit: Boy! I just can't seem to post an image to save my self... if I cut and paste the link, I get the image. What gives??

Last edited by a401classic; 05/21/07 06:02 AM.

Scott

My HT
Re: Fuses for EP sub??
a401classic #168454 05/21/07 11:40 AM
Joined: Apr 2003
Posts: 16,441
shareholder in the making
Offline
shareholder in the making
Joined: Apr 2003
Posts: 16,441
All linked image need to end in .jpg or .gif or similar. I peeked at the html source and found the direct link.



Re: Fuses for EP sub??
pmbuko #168455 05/21/07 11:53 AM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
Thanks, Peter. So all I needed to do was remove the "&title=EP500" from the end? The things I miss at 2AM

Scott


Scott

My HT
Re: Fuses for EP sub??
a401classic #168456 05/21/07 02:39 PM
Joined: Apr 2003
Posts: 16,441
shareholder in the making
Offline
shareholder in the making
Joined: Apr 2003
Posts: 16,441
That's not what I did. (just tried it and it doesn't work). On your original link, I went to my View menu and chose View Source. This shows me the page's raw HTML code. If you know html, it's easy to pick out the line that tells you where on the webserver the image is hiding. From there, it was just a copy and paste operation.

Re: Fuses for EP sub??
pmbuko #168457 05/21/07 06:07 PM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
Ahhhhhh! Think I got it now... I had to piece it together ... "http://www.axiomaudio.com/global" from the source definition plus "/images/products/large/amp.jpg" from the click-box to get "http://www.axiomaudio.com/global/images/products/large/amp.jpg" then bracketed between image tags. Right?

Scott

PS: I found fuses at mcmaster.com, should be here tomorrow!!

Last edited by a401classic; 05/21/07 06:08 PM.

Scott

My HT
Re: Fuses for EP sub??
a401classic #168458 05/21/07 06:43 PM
Joined: Jan 2004
Posts: 13,840
Likes: 13
shareholder in the making
Offline
shareholder in the making
Joined: Jan 2004
Posts: 13,840
Likes: 13
img /img


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: Fuses for EP sub... Got 'em!!
SirQuack #168459 05/23/07 01:34 AM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
That part I think I got

Mc Master delivered as scheduled and I'm rumbling away again!!

Scott


Scott

My HT
Re: Fuses for EP sub... Got 'em!!
a401classic #168460 05/23/07 01:53 AM
Joined: Jan 2007
Posts: 10,490
Likes: 116
M
shareholder in the making
Offline
shareholder in the making
M
Joined: Jan 2007
Posts: 10,490
Likes: 116
Rumbling...until the next brown-out.

Re: Fuses for EP sub... Got 'em!!
Mojo #168461 05/24/07 02:19 AM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
Gonna see if the Brick Wall surge protectors help. Everything else is plugged into them and I haven't seen a dip, fade, flicker, crackle, nothing.

Scott


Scott

My HT
Re: Fuses for EP sub... Got 'em!!
a401classic #168462 05/24/07 04:39 AM
Joined: Jan 2007
Posts: 10,490
Likes: 116
M
shareholder in the making
Offline
shareholder in the making
M
Joined: Jan 2007
Posts: 10,490
Likes: 116
They won't help with a brown-out. Your best bet for that is a diesel generator with a sub-cycle under-voltage relay .

Re: Fuses for EP sub??
Mojo #168463 05/25/07 03:27 PM
Joined: Sep 2005
Posts: 50
buff
Offline
buff
Joined: Sep 2005
Posts: 50
I have an older version of the EP500 without the fuses on the back panel. I had to return the unit to Axiom twice. On one of these occassions the Axiom technicians told me that the problem was a blown "internal fuse." I wonder if this had become an issue and is the reason Axiom now places these fuses on the back panel to make them accessible to the consumer.

My question (if anyone knows): If may EP500 dies again, can I access the fuses without returning the unit to Axiom?
Thanks for your help.


maphiker
Re: Fuses for EP sub??
maphiker #168464 05/25/07 03:32 PM
Joined: Jul 2006
Posts: 2,102
connoisseur
Offline
connoisseur
Joined: Jul 2006
Posts: 2,102
Quote:

I have an older version of the EP500 without the fuses on the back panel. I had to return the unit to Axiom twice. On one of these occassions the Axiom technicians told me that the problem was a blown "internal fuse." I wonder if this had become an issue and is the reason Axiom now places these fuses on the back panel to make them accessible to the consumer.

My question (if anyone knows): If may EP500 dies again, can I access the fuses without returning the unit to Axiom?
Thanks for your help.




I think this question would best be answered by an Axiom Rep. I would assume you could though.


Producer | Composer
www.robbhutzal.com
Re: Fuses for EP sub??
maphiker #168465 05/25/07 03:41 PM
Joined: Jan 2007
Posts: 10,490
Likes: 116
M
shareholder in the making
Offline
shareholder in the making
M
Joined: Jan 2007
Posts: 10,490
Likes: 116
JC told me that they made the fuses user-accessible so that the amps don't have to be returned to the factory. If yours are now accessible (ie. you have the newer amp) then you can just change them when they blow. I sure would like to know what those fuses protect.

Re: Fuses for EP sub??
Mojo #168466 05/25/07 04:02 PM
Joined: Jul 2006
Posts: 2,102
connoisseur
Offline
connoisseur
Joined: Jul 2006
Posts: 2,102
Since the EP400-600 have a digital DSP amp, I am assuming that they need those fuses to protect the inner electronics of the amp. whereas a normal sub doesn't have the digital DSP.


Producer | Composer
www.robbhutzal.com
Re: Fuses for EP sub??
a401classic #168467 05/25/07 10:12 PM
Joined: Mar 2001
Posts: 1,387
Likes: 8
Ian Offline
President
connoisseur
Offline
President
connoisseur
Joined: Mar 2001
Posts: 1,387
Likes: 8
Hi a401classic,

These fuses are not required for the amp to work properly or to avoid damaging the amp. In fact I don’t think they are even required for either CSA or UL but CAS wanted them in there because we also have a CE rating on the amplifier. Originally they were internal because they are very difficult to blow; you would need a drop below 90 volts followed by a spike to blow them. Since this actually happened in a few instances we moved them to the panel for easy replacement. Two of my EP600s are the original prototype amps and they do not even have these fuses inside or out and I have never damaged my amps; and living in rural Canada big voltage swings are a fact of life. We can certainly send you some fuses for them if you like on Monday. Recently we started including spare fuses with every EP400/500/600 sub just in case. We did not realize they were a bit tough to find until we out-boarded them on the panel. I hope this helps you out a bit with your current blown fuse issue.


Ian Colquhoun
President & Chief Engineer
Re: Fuses for EP sub??
Ian #168468 05/27/07 02:48 PM
Joined: Nov 2006
Posts: 1,333
connoisseur
OP Offline
connoisseur
Joined: Nov 2006
Posts: 1,333
Thanks Ian. I've got plenty of back up fuses now. I live in an area that is prone to heavy lightning activity, which I'm sure now is what happened, in addition to being at the end of the power line. We've never lost an appliance, even after a direct hit... so far. Actually we did lose a UPS once, but the computer attached to it was fine.

Thanks a again,

Scott


Scott

My HT
Re: Fuses for EP sub??
a401classic #168469 05/27/07 07:56 PM
Joined: Jan 2006
Posts: 683
aficionado
Offline
aficionado
Joined: Jan 2006
Posts: 683
Hi... just to be clear that's 5mm X 20mm 250Ma fuses, correct? McMaster's fuse selection is huge. What type fuse is it?

Thx!



Will Axiom also send extra fuses on request?



Epic 80 / SVS PB13 Ultra
Denon 3805 / M2200 Outlaw Monos /
Sammy 55" LED
Page 1 of 3 1 2 3

Moderated by  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Link Copied to Clipboard

Need Help Graphic

Forum Statistics
Forums16
Topics24,939
Posts442,452
Members15,615
Most Online2,082
Jan 22nd, 2020
Top Posters
Ken.C 18,044
pmbuko 16,441
SirQuack 13,840
CV 12,077
MarkSJohnson 11,458
Who's Online Now
1 members (BBIBH), 226 guests, and 1 robot.
Key: Admin, Global Mod, Mod
Newsletter Signup
Powered by UBB.threads™ PHP Forum Software 7.7.4