Krell KSA 200 for sale. Complete nut and bolt rebuild...
You've seen the thread, you know the work that went into this rebuild. But just in case you missed it in the DIY section, here's the link.
http://www.flickr.com/photos/59684834@N08/sets/72157634946321928/
This is a Krell KSA 200, Class A, solid state amp from Krell, built back when Krell stood for something real and was a byword for battleship build quality. This unit has been completely serviced, re-capped and benefits from a nut and bolt strip down. Here's the list of what has been done.
The unit was serviced with two output transistors and one driver stage transistor being replaced.
All parts of the output stage, driver boards and main pcb's were checked and trimmed against the original service manual specs.
The amp was then completely stripped down to the bare boards and chassis parts.
Every chassis part was cleaned, stripped and or refinished/resprayed where required.
All metal fasteners and fixings were either replaced with new metric equivalents, brass psu cap mounts, ballast resistor fittings or stripped and refinished, Imperial spec fittings, pcb mounts etc.
Every electrical contact was opened, cleaned and deoxed.
The large 24v relays were all opened, stripped, rinsed with iso, dried and then rebuilt and tested.
Every PCB was defluxed, rinsed and polished, there's not a trace that any of the pcb's are anything other than brand new parts.
All 24 of 100v electrolytic capacitors on the main boards were replaced with new 105 degree, DIN rated parts. (Were gold now blue)
All small signal and protection board electrolytic capacitors were replaced with modern equivalents with 105 degree or higher temperature rating.
All tired looking solder joints were re-flowed with new leaded solder.
The 6 main psu caps were replaced with brand new Kendeil 47,000uf 105 degree rated parts, these 6 caps cost £70 each.
All psu cap wiring was replaced with new cold crimped 4mm wire and lug fixings.
The main PSU diode bridges were replaced with new Vishay diodes to the original specifications.
All signal path wiring for the main pcb's to the output panel were replaced with new shielded wires.
The main transformer was treated to new rubber mounting washers.
Then it was all rebuilt incredibly carefully, ensuring that the placement of every part of the wiring loom for all the pcbs and parts matched the original spec precisely.
Since then it's been run in for a few days and sounds simply superb.
Long story short, this has been completely rebuilt, with every ageing component having been replaced with new parts of matching or better than original specification. I can guarantee that it is at least as good as the day it was born and should provide the lucky new owner with another 20 years of sterling service.
Obviously there's over £600 worth of new parts and consumables in this Krell KSA 200 and over 105 hours of build time have been lavished upon it. What price perfection? £2100, and I'll even deliver it within reason FOC, (North of London and South of Glasgow).
If you'd like to listen to it, then that can most definitely be arranged, weekdays or weekends in Sheffield. In fact, I think an amp of this quality demands an audition. A few interested parties have already asked to demo it so any offers to buy will be be considered in the order they were made.
Any questions please ask, the Flickr pictures are commented, you will find answers to most any question already on the images.
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