Little Love To My Krell KAV-250a/3 !

[Johan K]

Dear Krell enthusiasts,

Time to give some love and affection to my 3-channel amp. I try to clean my amps and gear from time to time from dust, and make shure everything is good and up to date. If there should be anything out of order - this check will tell me, and then I will deal with the issue. No problem with the amp at this point, but as a beast, and with some years on it’s neck, it’s always good to be shure.

With Krell, as an american component, you will for shure have the right blanket to put it on while serving it?.. and ofcourse you need the swedish touch to it aswell to get it up to NASA-standard once more.

I will go through this amp very meticulously and it will probably take some time, so I think there will be an opening for a nice coffebreak with some nice buns and cookies in between the cleaning sessions. I’m getting exited already, haha!

Well I think that’s it for the moment..

All the best

/ Jk

 

[Stereophonic]

Interesting. I see you are going to use Deoxit G5.
Please, keep us update with nice pictures like last post, where and how you are going to clean it.
I clean with Deoxit g100 and d100.
Stunning results...
Regards.

 

[Johan K]

Actually it’s Deoxit D5, and I only use it for the fuses, the binding posts, and the XLR inputs.
For the the rest I only visually going through everything and just wipe off very carefully the very thin layer of dust of everything I cen get to without demount any card or heatsink and so on. But just by clean the heatsinks from even the thin layer of dust makes the airflow a more easy access to the aluminium and keeps the amps temp to a lower working point. As you can see in one of the pics, the wipes are getting quite dark from cleaning the inputs, fuses and binding posts… so it’s worth doing it sometimes.. especially on little bit older gear.

/ Jk

 

[Johan K]

Ahhh finally… a coffee break with a nice cake.

Cheers to you all’ !

/ Jk

 

[Johan K]

Here’s the final result… Cleaned - inside and out? . Tomorrow I will reinstall it in the rack and hook it up to the system again.

Hope you liked it.

/ Jk

 

[Stereophonic]

Thank you.
Why din’t you clean iec pins?

 

[Johan K]

Did you mean the power inlet iec pins?
Well I did - no pin did escape the cleaning?.

 

[Lagonda]

It might just save you a trip to Bjôrn Haglund our favorite Scandinavian audio repair guy ! I will have to bring my Io on a Swedish vacation soon !

 

[Johan K]

Yes it might. It’s no bad thing to do an overhaul ones in a while. As you said, it can save a lot of trouble. Did talk to Björn last friday, and he was happy as always . That is one h*** of a guy on electronics, wouldn’t you say!? I think Björn will fix your IO in a jiffy - no match for him. At Björns place - it’s like the ”Four Seasons Resort in BoraBora” for electronics… they will rest - get fixed - and when they leave, they are like new!

 

[Johan K]

Just hooked up my 3-channel amp in the bottom of the rack. The preamps in the middle is the volume controls for the subs. The bottom preamp is for the two Martin Logan BF-212 subs on each side of the listening position, and the preamp over that is the volyme control for the front subtowers, the six Martin Logan BF-210.
On top of that preamp is my headphone amp from Schiit Audio along with the matching headphone equalizer.
On the very top of the rack is my main preamp / processor - or the main hub - so to speak.
I also use it as my DAC, as the DAC’s inside this processor is very very good, and makes my streaming extremely joyful.

So there you go… The system is up and running again. Hope you like it guys.

All the best

Johan