Amp Internals 2 |
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jbl_man
Moderator Group Joined: 12 January 2005 Location: London. Status: Offline Points: 11154 |
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What's so special about this? Other than the board on the end of the ribbon cable,it looks fairly normal ?
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Be seeing you.
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APW
Young Croc Joined: 13 November 2012 Location: Kent, UK Status: Offline Points: 1173 |
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Looks like Andy Hunt's work
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csg
Old Croc Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086 |
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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csg
Old Croc Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086 |
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Saw plenty of these around 20 years back, Matrix made. Not bad, nothing remarkable either.
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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csg
Old Croc Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086 |
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This weekend’s project is re-capping both of these, electrolytics only naturally. The pre-amp is 28 years old, the power amp 27. Both are heavily biased into class A so run very warm. Around 110w pc at 8R.
Everything arrived from Farnell yesterday, just need to find my roll of silver solder now, as that is what these are made with. |
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“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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APW
Young Croc Joined: 13 November 2012 Location: Kent, UK Status: Offline Points: 1173 |
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20 years ago would be about the correct era.... It seems to share a lot with the UKP1300 / STR1200 amps, except the daughter board the internals look like a mirrored UKP1300. |
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Sunday162
New Member Joined: 03 February 2021 Location: Nigeria Status: Offline Points: 1 |
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Please I need mp1800 panel
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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Just had this monster on the workbench. Mackie Fusion 3000 amp panel. Bottom-end, a basic Class G. Mid and top, Class AB, MOSFETs on the o/p, with transformer coupling to speakers. Very odd choice for the design. I really don't see any advantage doing this. Maybe with valves, ok - but with transistors? I guess it was looked on as a marketing thing for the cabs. |
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Earplugs Are For Wimps!
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Bams
Young Croc Joined: 08 April 2009 Status: Offline Points: 622 |
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Devine MA-800, bought for bass duties in a no-budget system, 2x400@4ohm. based on ttc5200/tta1943 so hard to belive but its only running a beyma 15g300 in a scoop for garden parties so won't be an issue. tried it on my home stereo and was remarkably "warm" sounding so quite a happy camper.
Devine is the instore brand of BAX shop and their budget gear has a good price/quality comparison. Bought this one for 80 euros' but still sells new for 220 euro. Edited by Bams - 21 February 2021 at 8:47pm |
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jbl_man
Moderator Group Joined: 12 January 2005 Location: London. Status: Offline Points: 11154 |
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Apart from the single fan, looks exactly the same as a Dare DJ900 i bought a few years back. |
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Be seeing you.
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kedwardsleisure
Old Croc Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4938 |
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and stageline STA-700
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Kevin
North Staffordshire |
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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And down here, RAM made some that look the same as well. Obviously a common design - with a horrible design fault. The RAM one's I've seen have slots above the fan. Cover that and they overheat - and go POP! One company here installed those in a few bars - where it can get really hot anyway. In the end - and after several repairs, I just swapped out for other amps. Really stupid. |
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Earplugs Are For Wimps!
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