Speakerplans.com Homepage
Forum Home Forum Home > General > General Forum
  New Posts New Posts RSS Feed - amp fuses,quick blow or slow blow?
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

amp fuses,quick blow or slow blow?

 Post Reply Post Reply
Author
Message
lickweed View Drop Down
Old Croc
Old Croc


Joined: 02 May 2009
Location: leyton
Status: Offline
Points: 2187
Post Options Post Options   Thanks (0) Thanks(0)   Quote lickweed Quote  Post ReplyReply Direct Link To This Post Topic: amp fuses,quick blow or slow blow?
    Posted: 10 December 2009 at 3:47pm
Hi
I need to replace a fuse in mine mackie m1400 amp,its a 32mm,ceramic, 8 amp fuse.
 which one i should use-quick blow or slow blow.
Many thanks for your adviceSmile
Back to Top
djstefanos View Drop Down
Old Croc
Old Croc


Joined: 18 November 2005
Status: Offline
Points: 2356
Post Options Post Options   Thanks (0) Thanks(0)   Quote djstefanos Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 3:50pm
your topic sounds very dodgyLOL
Back to Top
Stray-Sounds View Drop Down
Old Croc
Old Croc


Joined: 13 March 2008
Location: Wales
Status: Offline
Points: 2426
Post Options Post Options   Thanks (0) Thanks(0)   Quote Stray-Sounds Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 4:02pm
I did this once and the amp caught fire inside next time i switched it on
that was a slow blow fuse.. i just thought an 8 amp fuse would blow at 8 amps.. knows

<a href="http://www.soundhirewales.co.uk/">PA & Lighting - Sound Hire Wales</a>

Back to Top
DjMidKnight View Drop Down
Registered User
Registered User


Joined: 31 August 2009
Location: Abq NM
Status: Offline
Points: 298
Post Options Post Options   Thanks (0) Thanks(0)   Quote DjMidKnight Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 4:20pm
its a quick blow fuse, idk about mackie spacificaly but all of the ones i use are type ACG.
reality is meerly a compilation of what our limited sences precieve as being fact therefore there is no true universal reality and as such i propose that space and time can be bent twisted and altered
Back to Top
lickweed View Drop Down
Old Croc
Old Croc


Joined: 02 May 2009
Location: leyton
Status: Offline
Points: 2187
Post Options Post Options   Thanks (0) Thanks(0)   Quote lickweed Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 5:01pm
Thanks guys for infoWink
Im not an electrician and i thought that there are just one kind of fuses,but there are many.
So quick blow it is.
Thanks once moreSmile
Back to Top
Wrighty View Drop Down
Old Croc
Old Croc


Joined: 17 April 2004
Location: Devon
Status: Offline
Points: 1801
Post Options Post Options   Thanks (0) Thanks(0)   Quote Wrighty Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 5:07pm
You can tell by the letters which are usually stamped into one or both end caps on the fuse. 5AT or T5A is anti-surge 5A, for example. 5AF or F5A is fast blow 5A. The same lettering code is often printed next to the fuse holder.
ALL YOUR BASS ARE BELONG TO US.
Back to Top
Saul View Drop Down
Old Croc
Old Croc


Joined: 15 June 2007
Status: Offline
Points: 5912
Post Options Post Options   Thanks (0) Thanks(0)   Quote Saul Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 5:28pm
Originally posted by djstefanos djstefanos wrote:

your topic sounds very dodgyLOL

LOL maybe it's just you 
Back to Top
djstefanos View Drop Down
Old Croc
Old Croc


Joined: 18 November 2005
Status: Offline
Points: 2356
Post Options Post Options   Thanks (0) Thanks(0)   Quote djstefanos Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 6:12pm
Originally posted by Saul Saul wrote:

Originally posted by djstefanos djstefanos wrote:

your topic sounds very dodgyLOL

LOL maybe it's just you 

maybe it is LOL
Back to Top
Centauri View Drop Down
Old Croc
Old Croc


Joined: 29 November 2004
Location: Newcastle Aus
Status: Offline
Points: 1792
Post Options Post Options   Thanks (0) Thanks(0)   Quote Centauri Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 10:32pm
According to the Mackie service manual, the fuse should be an 8A SLOW BLOW type.

Usually the mains fuse on an amp is the slow blow type due to the filter capacitors initial inrush current which can pop a fast blow fuse.
Back to Top
lickweed View Drop Down
Old Croc
Old Croc


Joined: 02 May 2009
Location: leyton
Status: Offline
Points: 2187
Post Options Post Options   Thanks (0) Thanks(0)   Quote lickweed Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2009 at 11:30pm
Thanks again for your replies.
Some say slow some say quick.
In service manual its a 8a sb fuse which i presume is slow blow(sb).
So looks like slow blow.
I will email them just to be 100% sure.
Thanks everyoneSmile
Back to Top
_djk_ View Drop Down
Old Croc
Old Croc


Joined: 23 November 2004
Location: United States
Status: Offline
Points: 5975
Post Options Post Options   Thanks (0) Thanks(0)   Quote _djk_ Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2009 at 12:16am

Make sure it is a ceramic type, they have powder in them to quench the arc that forms when they blow.

djk
Back to Top
brokenjoe View Drop Down
Old Croc
Old Croc


Joined: 31 May 2009
Location: Birmingham
Status: Offline
Points: 3626
Post Options Post Options   Thanks (0) Thanks(0)   Quote brokenjoe Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2009 at 10:11am
i prefer slow blow... depending on the situation and location 
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.078 seconds.