Amp Internals 2 |
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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"Switched it on and something went BANG " That sounds about right for those modules as well! One company here used the 500A and 1000A modules to power a range of speakers they brought out. They never lasted very long - especially the sub cabs, that blew up very quickly. They then did a deal with RAM to manufacture modules for them, which were (marginally) better. |
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Earplugs Are For Wimps!
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kedwardsleisure
Old Croc Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4938 |
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Citronic-badged PRO3200
Not sure the quality of the fuse-changing fills me with confidence! Edited by kedwardsleisure - 25 June 2020 at 1:22pm |
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Kevin
North Staffordshire |
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HonkyJones
Registered User Joined: 14 January 2017 Location: UK Status: Offline Points: 58 |
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jbl_man
Moderator Group Joined: 12 January 2005 Location: London. Status: Offline Points: 11154 |
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Is that potting compound or just black splodge all over that driver board Kevin? How the hell is anyone spose to repair that? Edit....quite liking the heatsink though,very artistic! Edited by jbl_man - 26 June 2020 at 9:31am |
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Be seeing you.
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odc04r
Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5483 |
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Looks like potting compound, maybe the manufacturer had problems with vibration on those components or shorting due to dust, then rather then redesign everything the boards got potted to make the problem go away. Or it could be linked to temperature sensing.
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M4trix
Registered User Joined: 23 June 2009 Location: Croatia Status: Offline Points: 445 |
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Maybe to prevent or make it harder for the reverse engineers.
Edited by M4trix - 26 June 2020 at 9:07pm |
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Wikl109
Young Croc Joined: 29 April 2009 Location: Yorkshire Status: Offline Points: 968 |
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Honky Jones, can I just say you made my day by linking to this guys website. This quote regarding the Crown DC300A really made me smile: "Check out this bollocks of a switch. It's designed so that the thin metal sides cut through the soft plastic rocker every time it is operated. It is about to pop apart and spill its guts. It is mounted so that it can't be removed without taking half the works out. It is a weird shape and size so I can't replace it with a proper one. I like to imagine that the designer of it is no longer with us, having died in a bizarre accident. Fixing this is going to be the time-consuming bit of the operation." Classic. |
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Cheers, Chris.
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kedwardsleisure
Old Croc Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4938 |
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Potted with something very hard, they must've learned it from powersoft. All in the airflow so got to be for protection from dust and moisture.
Either way the thing's scrap! |
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Kevin
North Staffordshire |
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JJax
Registered User Joined: 10 April 2015 Location: Estonia Status: Offline Points: 17 |
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Tasso TD-8000
Class TD. Power amps look to be Lab.Gruppen copies. Manufacturer claims: 2x 1300W @ 8ohm 2x 2300W @ 4ohm 2x 3200W @ 2ohm 3900W @ 8 ohm bridge 4900W @ 4 ohm bridge ACM M2500 |
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When life gives you lemons, sell them and use the money to buy more audio gear.
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M4trix
Registered User Joined: 23 June 2009 Location: Croatia Status: Offline Points: 445 |
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Speaking of which, is any European country making these special heat sinks for amplifiers ? Or does someone here have these lying around and wants to get rid of them ? Of course, bare heat sinks without the PCB and stuff. Edit: Preferable 3U height Edited by M4trix - 02 July 2020 at 10:00pm |
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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I have plenty of heatsinks lying around, a couple - or more - similar to what you have posted. How many do you need? |
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Earplugs Are For Wimps!
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M4trix
Registered User Joined: 23 June 2009 Location: Croatia Status: Offline Points: 445 |
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@Earplug, check your inbox.
Edited by M4trix - 02 July 2020 at 2:18pm |
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