Hello all, I just stumbled into 2 nice examples of these in working condition. Not pristine, but no damage, and a cleanup will do them nice. While trying to figure out what they were I ran into some people that mentioned upgrading resistors and replacing caps. I was wondering if anyone here has messed with them and had any advice, or just wanted to take a look at the design and recommend some upgrades. I am interested in upgrading one and being able to compare it to the other. I am amateur DIY guy, can read values, unsolder and resolder well enough. I would only be looking for info on what to pluck out and replace/upgrade. Looks like it could be fun. I also always ask before I get into something like this, is there any lethal voltage I could encounter in the amp itself, not the power supply? Any thoughts folks? Here are a couple links that might inspire you to look around.
Edit, I think these are late model 1?
https://alchemisthifi.info/ranges/kraken/alchemist_kraken_apd8_power_amplifier.htm
https://www.audiog.com/en/item.aspx?item=2442
https://www.darkhorseaudio.co.uk/portfolio/alchemist (this is an upgrade of the integrated amp tht looks to have a similar build)
http://www.audioreview.com/product/amplification/amplifiers/alchemist/kraken-apd8a.html (a couple reviews mention some upgrade ideas)
Edit, I think these are late model 1?
https://alchemisthifi.info/ranges/kraken/alchemist_kraken_apd8_power_amplifier.htm
https://www.audiog.com/en/item.aspx?item=2442
https://www.darkhorseaudio.co.uk/portfolio/alchemist (this is an upgrade of the integrated amp tht looks to have a similar build)
http://www.audioreview.com/product/amplification/amplifiers/alchemist/kraken-apd8a.html (a couple reviews mention some upgrade ideas)
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One of the main questions I have is why this particular mod would be done:
Change the eight x 3 watt 0R47 resistors (four on each channel) with Vishay non-inductive RCH25 types
if possible, could someone provide me a link to this resistor that is being recommended? from what I can find they are to be surface mounted and all I can think is the OP mounted them to the heat sinks ads ran wire from there to the board
Change the eight x 3 watt 0R47 resistors (four on each channel) with Vishay non-inductive RCH25 types
if possible, could someone provide me a link to this resistor that is being recommended? from what I can find they are to be surface mounted and all I can think is the OP mounted them to the heat sinks ads ran wire from there to the board
| https://www.vishay.com/docs/50006/rch.pdf link to the type recommended? |
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