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Krell kav 250A blows internal fuse - Audio Players & Recorders

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It could be shorted output transistors, I fixed a unit that a small 1.1 ufarad C3 was defective and damage the output transistors as well as a couple inductors and resistors

Posted on Oct 07, 2014

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Hi please check the wiring of the output it could be short or the speaker would be short or it could be the diode at the secondary supply that had short or capacitor disconnect the power supply ans check the OHMS of the transformer .or check the transistor could be stort

Posted on Nov 17, 2009

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Hello If i wanted to refresh my Krell KAV-300i what parts should i change out? Thanks :)


Can you please provide more information about what you mean by "refresh"? Is there a performance problem or funcitonal problem with the unit?

Thanks,
Dan

Aug 16, 2010 | Krell KAV-300i 2-Channel Amplifier

1 Answer

Hello, after plugging on Ipod through my preamp hooked through my krell kav 300 integrated amp I heard a super loud noise and lost power. I examined the fuse and it looks fine. What do I do?


Sounds like the volume was way up when the iPod turned on. iPods are DC and cause a sudden thump through the speakers when they power on.
If the fuse is not blown, there may be another fuse you have not seen. Most amps have three to five fuses especially a 150watt/channel like the Krell.

Apr 17, 2010 | Krell KAV-300i 2-Channel Amplifier

1 Answer

Hi, Will the krell kav 500i work on 220v 50hz supply? Thanks


If it has a voltage selector for 220v, once configured it will work just fine Being electronic instead of mechanical the power frequency won't affect it. If it doesn't have a voltage selctor, don't plug it into 220.

Dec 26, 2009 | Krell Audio Players & Recorders

2 Answers

Krell kav300i, increasing volume by itself.


That is an extremely odd problem. I suggest finding a tech in your area who is familiar with the unit, or contacting krell directly.

Sep 21, 2008 | Krell KAV-300i 2-Channel Amplifier

1 Answer

Fuse at power cord blows


first check your speaker cabels for short circuit and speaker for  short coil .after you confirm there is no shotr of cabel wires by checking with avometer in ohm postion.connect speaker if the problem excit your speaker is guilty - change it with same configuration.about switches put it in low order and chech for sound level and you can go up after that.

Mar 05, 2008 | Krell KAV-300i 2-Channel Amplifier

1 Answer

Krell 250a power amp


Hi There WLAW,
I am in Auckland NZ and do repair work for a high quality Amplifier chain so I could have a look at yours for you....

Being Local in Auckland it will save you sending it away off shore to Australia.

Cheers From YUBEUT (09) 357 7496

Dec 26, 2007 | Krell Home Theater Standard 7.1...

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