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How is Khozmo Stepped Attenuators? - Page 29

post #421 of 433

Hi all,

 

Any more inputs about this topic? 

 

On partsconnexion there is a MK 2 version of the Khozmos. Anyone tried it so far?

post #422 of 433

Trying to advertise something... ??

post #423 of 433

What a nice welcome. :)

 

But no, trying to learn something. That was my first post but you can search my user name in Agon, Asylum, diyaudio and even in ebay to have your own impression about me.

 

Regards


Edited by Firochromis - 12/25/13 at 6:36am
post #424 of 433

Maybe it was a mistake, but your link is pointing to an Ebay auction... therefore my reaction.

post #425 of 433

I managed to stuff a used first gen (square) Khozmo 50K stereo ladder into my Crack.... amp. :tongue_smile: 

 

It had a bit of clicking, but I think it was just the result of neglect.  Good snaps actually. Right in the ear. Ouch.  

A few quick turns through the usable range seemed to clear it up.  Otherwise, its an amazing piece.  

post #426 of 433

i didn't realize the khozmo is a shunt type attenuator :redface:

 

what value should it be to replace the stock attenuator in a stock conductor?

 

how do i connect it?

post #427 of 433

hi, i did the upgrade, replaced the stock burson's attenuator with the Khozmo shunt type 48 steps

 

ultra smooth and precise, very noticeable gain in soundstage immediateness and transparency, got rid of the pops and clicks, as well as of the noise with sensible cans, the default one exhibited

 

used the stock patch cable that connected the default attenuator

 

removed the Caddock mk132 series resistors (since the conductor has them on the pcb, one can upgrade those too with the ones that come with the 10k khozmo or equivalent, should be 10k but i'm not 100% sure, still awaiting confirmation from burson), bridged the GND terminals on the khozmo with a ohno silver wire and soldered the black wire on it, the red and white wires were soldered on the khozmo's OUT terminals

 

i got the Khozmo directly from http://www.khozmo.com/ (EU Poland)

 

http://www.partsconnexion.com/ (Canada) sells upgrade parts and burson's gear and does this and other upgrades, you can send them in your own gear for upgrades too

 

cheers

 


Edited by roskodan - 6/12/14 at 4:37pm
post #428 of 433

I recently built an Audio Note (kit) pre-amp, 'The Mentor'. It uses 2 mono Khozmo attenuators, one for each channel. The right channel Khozmo crackled like crazy, when I say 'crackled' I mean my speakers tried to spit the cones across the room, I needed ear protection to change volume. Arek sent me 2 of his newly designed attenuators with double wipers and I have to say theu are awesome, so much better than the old version, (however one advantage the old ones had was you could change it to any resistance by simply swapping out the Caddock resistor, the new ones are 'set' at manufacture, the new ones do not have an external resistor). I'm not sure if it's the extra contact but the whole system is much more alive and 'full'. I realy cannot recommend these new double wiper Khozmo's enough.

post #429 of 433

did you get the standard resistors pot or the upgraded one? do you have some photos to show the new design? i sold mine, the one pictured in the post above yours, btw never had any issues with it on my conductor, i'll probably be ordering again cos all the others brands come with 24 steps max, didn't find any with more than that, do anyone know of any?

Quote:
Originally Posted by Insomnus View Post
post #430 of 433
Quote:
Originally Posted by roskodan View Post
 

did you get the standard resistors pot or the upgraded one? do you have some photos to show the new design? i sold mine, the one pictured in the post above yours, btw never had any issues with it on my conductor, i'll probably be ordering again cos all the others brands come with 24 steps max, didn't find any with more than that, do anyone know of any?

I got the standard one, Resistors: Vishay/Dale RN55 1% 100ppm , 1/8W, low noise. They are tiny SMD type. They look identical to the old apart from there is no room for the Caddock (it had IN/OUT/GND/ connections and 2 for the caddock. Also the fastening posts are slightly larger on the new, so you will need a slightly larger hole in the facia. I cannot post the only photo I have because I do not seem to have permision for that on this forum.

post #431 of 433

If you go on the Khozmo website they show a stepped attenuator using all naked vishay z foil resistors. What pot is this one?

post #432 of 433

How about a stepped attenuator using path audio resistors. Now that would be something.

post #433 of 433
Quote:
Originally Posted by Jwm48324 View Post
 

If you go on the Khozmo website they show a stepped attenuator using all naked vishay z foil resistors. What pot is this one?

The naked z foil resistors are better quality than the vishay dale, they also cost more. If you want the ultimate set try Charcroft resistors at £10-£25 each (you will need 48 per channel). Although I think I would buy a Seiden switch if I was paying that much.

 

http://www.hificollective.co.uk/components/car_resistors.html

 

http://www.hificollective.co.uk/catalog/seiden-switch-pole-switch-62005-p-9283.html

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