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EmPro
Young Croc Joined: 26 June 2020 Status: Offline Points: 766 |
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You will blow the amplifier useing it without a fan...he will heat and limit the outputs transistors always and this will make them weeker and weeker untill will blow up...the MT1200 is not made to be used without a proper cooling fan,as the heatsinks in these series are a joke compared to other amplifiers and are fully dependent of the fan air flow to get cooled properly. watching at that amp now i only see a timer bomb about the rubber capacitor washers,when i changed the caps i added plastic thicker washers just to be 200% sure that i will never have any problems,i made the washers from old binding posts support as there strong enaugh to tight them like hell and same screw size
Edited by EmPro - 01 July 2022 at 3:38pm |
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EmPro Audio
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shaun1264
Registered User Joined: 06 September 2013 Location: Surrey Status: Offline Points: 277 |
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As I've already mentioned I'll be putting a fan in.
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EmPro
Young Croc Joined: 26 June 2020 Status: Offline Points: 766 |
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Perfect :D but...where you planning to put it? as his space now is full with that transformer you need to find a different place for the transformer...as the fan needs to be in the same place...
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EmPro Audio
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EmPro
Young Croc Joined: 26 June 2020 Status: Offline Points: 766 |
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When driver boards blows up on Citronic Conquest V12:
I made this immortal lateral mosfet amplifier two years ago...still going strong and for sure i will die old and this amp will still play no problem not the best of my designs btw,i was just bored that time and i loved the case and heatsinks of this Citronic way to much to throw them away and yeah...the funny part is that i set the dual fan cooling sistem always on,i ask myself even today why the f_ck i even done that
Edited by EmPro - 01 July 2022 at 5:26pm |
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EmPro Audio
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EmPro
Young Croc Joined: 26 June 2020 Status: Offline Points: 766 |
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EmPro Audio
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djkeet
Registered User Joined: 26 December 2011 Location: England Status: Offline Points: 462 |
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I like how the case turned out did powder coat it or what spray did you use? |
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EmPro
Young Croc Joined: 26 June 2020 Status: Offline Points: 766 |
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Black spray for cars mate :) from B&Q.
Edited by EmPro - 20 July 2022 at 7:13am |
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EmPro Audio
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djkeet
Registered User Joined: 26 December 2011 Location: England Status: Offline Points: 462 |
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Cheers |
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Soundbite
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EmPro
Young Croc Joined: 26 June 2020 Status: Offline Points: 766 |
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Cheers
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EmPro Audio
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Seca23
New Member Joined: 08 September 2022 Location: Romania Status: Offline Points: 3 |
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Hi!
I need some help with a HH Vx1200 amp Both the clip lights stay on, one gets a little dimmer after a few seconds after turning it on. I already changed the lm339n comparator but it made no difference The amp is working ok, it doesn't sound distorted at all. Another problem is when i turn it off it makes a squeaky noise for a few seconds on both channels. These problems apeared suddenly, it was working perfectly before. I would also like to know the procedure for adjusting bias and dc offset Thank you!
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EmPro
Young Croc Joined: 26 June 2020 Status: Offline Points: 766 |
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That is a common problem caused by leaky or dryed capacitors in driver board,always replace them with new ones and your problem will dissapear 100%,for bias and dc adjustments you should have trimmers (2 for each ch) with reference points for bias values as far i remember from my old VX900.
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EmPro Audio
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Seca23
New Member Joined: 08 September 2022 Location: Romania Status: Offline Points: 3 |
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I can't find the test points and I don't know the corect value for bias
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