|
Spot the deliberate mistake |
Post Reply 
|
Page <1 30313233> |
| Author | |
kedwardsleisure 
Old Croc 
Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4946 |
 Post Options
 Thanks(0)
 Quote Reply
 Posted: 26 May 2022 at 7:46pm |
Mm..been a while with me and these things. The last nightclub client that used them is now a housing estate. Loose fuse clips, arcing mosfets, leaky driver transistors will all make unwanted noises on these. Earlier versions with LCR capacitors can leak electrolyte underneath them and cause the pins to arc, though ISTR its less of a crackle and more of a bang. Yours looks fairly new as it has Samwha capacitors. (all things being in perspective) |
|
|
Kevin
North Staffordshire |
|
 |
|
|
EmPro
Young Croc 
Joined: 26 June 2020 Status: Offline Points: 766 |
Post Options
Thanks(0)
Quote Reply
Posted: 26 May 2022 at 8:55pm |
|
i changed the capacitors from old LCR to new samwha,remade all the solderings and added small heatsinks on the drivers as they get bloody hot in these things and make all sort of funny noise into speakers
 ,no problem since.
|
|
|
EmPro Audio
|
|
|
|
|
Andylaser
Registered User 
Joined: 16 April 2010 Location: Southampton Status: Offline Points: 300 |
Post Options
Thanks(0)
Quote Reply
Posted: 28 May 2022 at 2:39pm |
|
Knowing those old BK amps, something very easy to fix.
|
|
|
"music so loud, that if we move in next door to you; your lawn will die" - Lemmy
|
|
|
|
|
EmPro
Young Croc
Joined: 26 June 2020 Status: Offline Points: 766 |
Post Options
Thanks(0)
Quote Reply
Posted: 28 May 2022 at 2:54pm |
Indeed,10min if you have the parts you need,the hard part is that you need to remove the module out of the case if you need to change parts as no acces underneath because all the body case is basically heatsink for the mosfets,and that takes time
Edited by EmPro - 28 May 2022 at 2:55pm |
|
|
EmPro Audio
|
|
|
|
|
kedwardsleisure
Old Croc
Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4946 |
Post Options
Thanks(0)
Quote Reply
Posted: 28 June 2022 at 4:00pm |
|
Cloud VX-A4.
'It's been serviced regularly every 12 years.' 
|
|
|
Kevin
North Staffordshire |
|
|
|
|
EmPro
Young Croc
Joined: 26 June 2020 Status: Offline Points: 766 |
Post Options
Thanks(0)
Quote Reply
Posted: 28 June 2022 at 4:03pm |
After or before Christ?
|
|
|
EmPro Audio
|
|
|
|
|
jazomir
Old Croc
Joined: 20 November 2006 Location: Sunderland UK Status: Offline Points: 1710 |
Post Options
Thanks(0)
Quote Reply
Posted: 28 June 2022 at 4:53pm |
|
Bears an uncanny resemblance to the innards of my daughter's old laptop - keyboard crud doesn't begin to describe the carnage the PC repair guy found when he opened it up.
|
|
|
For sidefills, can we have two enormous things of a type that might be venerated as Gods by the inhabitants of Easter Island, capable of reaching volumes that would make Beelzebub soil his pants.
|
|
|
|
|
kedwardsleisure
Old Croc
Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4946 |
Post Options
Thanks(0)
Quote Reply
Posted: 10 February 2023 at 9:26am |
|
Marshall JCM800 Jubilee Special. Client reports making strange crackling noises.
 Edited by kedwardsleisure - 10 February 2023 at 9:27am |
|
|
Kevin
North Staffordshire |
|
|
|
|
MattStolton
Old Croc
Joined: 04 September 2010 Location: Walthamstow Status: Offline Points: 4234 |
Post Options
Thanks(0)
Quote Reply
Posted: 10 February 2023 at 10:02am |
|
I like my solder joints, like I like my Martinis, "Dry".
However, that isn't just "dry", more "absent"?
|
|
|
Matt Stolton - Technical Director (!!!) - Wilding Sound Ltd
"Sparkius metiretur vestra" - "Meter Your Mains" |
|
|
|
|
kedwardsleisure
Old Croc
Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4946 |
Post Options
Thanks(0)
Quote Reply
Posted: 10 February 2023 at 10:17am |
|
Can't blame the chinese this time as they're made in the UK. I suppose the girl wiring it could've had something on her mind, although you'd think QC would've picked it up. At least it wasn't an earth.
|
|
|
Kevin
North Staffordshire |
|
|
|
|
Lucasdude
Young Croc
Joined: 16 March 2013 Location: London Status: Offline Points: 796 |
Post Options
Thanks(0)
Quote Reply
Posted: 10 February 2023 at 4:48pm |
|
Didn't we cover this "wrap around the pole" termination technique last year?
|
|
|
|
|
kedwardsleisure
Old Croc
Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4946 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 October 2023 at 9:30am |
|
Haven't had one of these for a while so as it's a Friday...
Not specifically speaker related but a ubiquitous Meanwell 600W power supply. Client installed one in his enclosure and it went bang. Bought another and installed that, it went bang too. Very unusual as Meanwell are a pretty decent product in my experience. A photo of my recently made pot noodle for the correct guess. 
|
|
|
Kevin
North Staffordshire |
|
|
|
|
Post Reply
|
Page <1 30313233> |
| Tweet |
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options
Guess what fixed the crackling sound at high volumes