Amp Internals 2 |
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Sonic the hedge
Registered User Joined: 12 May 2020 Status: Offline Points: 161 |
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Agree, my DXs are over 30 years old, the first 12 years in a club install getting ragged week in week out. But well looked after. Modern class D stuff just isn't as maintainable IMO.
Always nice to see user mods keeping these oldies useful Not much experience with Harrisons, but a K1000 was the only amp I ever managed to thermal. Again not one of mine, perhaps there was something wrong with it? And to be fair to the K1000, I was dealing with a pretty clueless FOH engineer at the time, which didn't really help Edit - well apparently the newer K series are known to be a bit rubbish but the older Harrison's are all good
Edited by Sonic the hedge - 20 May 2020 at 1:43pm |
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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"
Friend of mine has one special model which I cannot find any information, model is X1600.
It
weights about 40kg. It has two stacked toroidal transformers and 32
mosfets / channel. Rail voltage is +/- 60Volts so I think it has full
bridge circuit for each channel." Yes - I had one of those. It got left at a friends lockup - and knicked! As you say, each channel wired in bridge. |
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Earplugs Are For Wimps!
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Tonskulus
Registered User Joined: 15 September 2017 Location: Finland Status: Offline Points: 425 |
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"Special" because it seems to be pretty rare amp when it comes to google. Does someone have schematics for it btw? Would be pleasure to find it :) Edited by Tonskulus - 15 May 2020 at 10:48am |
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jjpa
Registered User Joined: 11 January 2005 Location: Wales Status: Offline Points: 176 |
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this thread just reminded me. I put a harrison x1000 in the loft around 15 years ago. used the amp for years and loved it on bass. will look tomorrow and post it's innards up. have a feeling after all these years it's not going to be pretty. I feel a restoration project coming on.
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The music is only to loud when it's distorted!!!
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JR.junior
Old Croc Joined: 14 December 2009 Location: Slovenija Status: Offline Points: 1789 |
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Repaired Crown XTi 4000. IGBT´s and driver fatals.
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Support the scoop technology, larger mouth plays louder!
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Sonic the hedge
Registered User Joined: 12 May 2020 Status: Offline Points: 161 |
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Have a looksie here Old thread but member Mhamplification does mention that they had a schematic for x1600, not been active for a while but worth trying a PM I guess
Edited by Sonic the hedge - 20 May 2020 at 1:20pm |
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kedwardsleisure
Old Croc Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4938 |
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Chinese amp with 'ICE 1400' marked inside.
Not sure it's a B & O ice power unit, mind you. |
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Kevin
North Staffordshire |
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jbl_man
Moderator Group Joined: 12 January 2005 Location: London. Status: Offline Points: 11154 |
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Nine seems an odd number of smoothing capacitors?
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Be seeing you.
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Peter Jan
Young Croc Joined: 16 December 2008 Location: Belgium Status: Offline Points: 1019 |
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I see two different groups of capacitors, maybe one set is primary and the other secondary ?
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Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
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That´s B&O for you. Hifi. An even number would upset the cosmic equilibrium! |
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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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Do you have some sort of OCD ? Like, everything needs to be in pair ? I have OCD as well but didn't notice the 9th capacitor !
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kedwardsleisure
Old Croc Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4938 |
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4 mains dc smoothers and the other 5 are the secondary. Only a single ended power supply as it's class-D full bridge.
Switched it on and something went BANG |
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Kevin
North Staffordshire |
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