nice work!! i have the same amplifier and for sure i have to recapping.. some day, but i have to find the same caps/brand becouse if i use othe brand sound change and then is not Krell.
@nicklytras Well... Then use Sprague and Mallory for normal purpose use. Sprague in driver and output boards and Mallory in the softstart. I prefer using better quality caps when i restore electronics. Sprague is not a bad capacitor at all, but a modern design cap as Panasonic FC is well known to be a good choice for audio applications. My unit still sounds like a KRELL !
I made all the aluminum components for this amp in New Hampshire USA at a company called AAVID Thermalloy. You wouldnt believe the care that goes into making the base and heatsinks. The are handled with white cotton gloves after machining.
The capacitors are fried because there is a huge resistor almost touching them that gets to be hundreds of degrees. Stupid ass design. I had a KSA-150 that had the same resistor on the front board. They could have easily lifted it up and away from the other circuit parts to preserve them.
@ethorii I've heard of people sent there amplifier several times to krell for repair , and the part that failed are just the softstart board and the overheated resistors who kill everything around them. Very bad layout for the resistors. This problem is solved in my case.
holy crap, nice job, i was worried at first when I started watching because I did not know if you really knew what you were into! I bought a KSA 300s recently that had service done and these amps are amazing (and great space heaters as well!) Now enjoy listening!
@Menningerproperties Yes, it was many hours of work. But if you do it your self, you now every part is changed and you can spend endless time to resolder bad joints. I found more than twenty of them, and one joint that was forgotten! A little bit of loosy quality check i suppose. I think this amp will stay in my home for a long time. And to listen to it brings you to heaven !
@Menningerproperties I have a Special Addition KSA 250s and I also have the KSA 300s I love both of them!!! For different reasons!! They R Awesome Amps!!! :o)
Where can I buy those silicone pads?
gratisnepkut 2 weeks ago
@fragglan could you please tell me the name of the song that you used for this video?
Cheers.
SlayerSalamanda 3 weeks ago
@SlayerSalamanda . It's a audio swap from youtube... i don't remember the title. sorry.
fragglan 3 weeks ago
nice work!! i have the same amplifier and for sure i have to recapping.. some day, but i have to find the same caps/brand becouse if i use othe brand sound change and then is not Krell.
btw whats the name of this song?
nicklytras 1 month ago
@nicklytras Well... Then use Sprague and Mallory for normal purpose use. Sprague in driver and output boards and Mallory in the softstart. I prefer using better quality caps when i restore electronics. Sprague is not a bad capacitor at all, but a modern design cap as Panasonic FC is well known to be a good choice for audio applications. My unit still sounds like a KRELL !
fragglan 1 month ago
Can someone tell me which is better? a) Unbalanced KSA80 (passive cooled) or b) KSA100, active cooled.
Both are recently serviced and cost the same (€1250).
ThisIsSATA 3 months ago
Superb effort! Real nice and informative movie.
I had model Second Series Rowland 7's that burned their inrushcurrent resistors but there were no other components around them luckily.
BoudewijnvanHouten 3 months ago
I made all the aluminum components for this amp in New Hampshire USA at a company called AAVID Thermalloy. You wouldnt believe the care that goes into making the base and heatsinks. The are handled with white cotton gloves after machining.
kenstcyr 4 months ago
you are amazing i wish i can give you my ksa 250 to fix i got the same problem
you can make good money . maybe i can ship you my krell in parts ? all the best
MrSlk32amg 4 months ago
The capacitors are fried because there is a huge resistor almost touching them that gets to be hundreds of degrees. Stupid ass design. I had a KSA-150 that had the same resistor on the front board. They could have easily lifted it up and away from the other circuit parts to preserve them.
ethorii 6 months ago
@ethorii I've heard of people sent there amplifier several times to krell for repair , and the part that failed are just the softstart board and the overheated resistors who kill everything around them. Very bad layout for the resistors. This problem is solved in my case.
fragglan 6 months ago
holy crap, nice job, i was worried at first when I started watching because I did not know if you really knew what you were into! I bought a KSA 300s recently that had service done and these amps are amazing (and great space heaters as well!) Now enjoy listening!
Menningerproperties 7 months ago
@Menningerproperties Yes, it was many hours of work. But if you do it your self, you now every part is changed and you can spend endless time to resolder bad joints. I found more than twenty of them, and one joint that was forgotten! A little bit of loosy quality check i suppose. I think this amp will stay in my home for a long time. And to listen to it brings you to heaven !
fragglan 6 months ago
@Menningerproperties Yes they R Amazing Amps, I have both the KSA 250, KSA 300S, the 300 doesn't get nearly as hot as the 250 @ idle!!!
Sirflatch 3 months ago
@Menningerproperties I have a Special Addition KSA 250s and I also have the KSA 300s I love both of them!!! For different reasons!! They R Awesome Amps!!! :o)
Sirflatch 2 months ago
Electrical Engineer.....hmmmm.
No he is onley a electronic nerd who work as a Cable Guy at the saw mill..
And he just love to pull the cables...
PS...Fragglan I'm just kidding.
stuffeengvall 8 months ago
@stuffeengvall Hmmmmm... You'lll eat this on monday :)
fragglan 8 months ago
Are you an electrical engineer?
jRedTree85 8 months ago
@jRedTree85 Hi, electrical engineer.. not really. I work as an Industrial Electrician. But i have some knowledge about electronics as well.
fragglan 8 months ago