Best Aplifier for AKG K-1000 Headphones

I have seen lots of information, perfect match stories and many suggestions about this topic and I have gone through most possible combinations. The most interesting combinations for me were:

1- Pass Aleph designs because of the detailed mids and good bass tonality
2- Pioneer SA-810 because of the soft and warm tonality while keeping the atackness and reality at a great level
3- The Fisher KX-90 Control Amplifier for the laid back mid and highs and nice tonality

However, before naming the best amplifier, I must tell you how I came accross to a AKG K-1000 at the first place. I am a vintage calculator or computer collector. For this reason, one has to wake up early and head to the flea market before every other hunter does. All the stands at the flea market has to be scanned with great attention to all the items which are there to be sold. Like many calculators, computers, I have came across to my many high-end equipment for a fraction of their sales price. It was a great Sunday morning in June 2002, I have bought my two AKG K-1000s for 2.5Euro from a Turkish flea market, which was held in Istanbul, Kadikoy. Both of them had the label "Engineering Sample" on them and the lead wires were intentionally broken for preventing them to make sound. Such things are easy to repair if you have the right tools and skills. Without the circuit in the cans, the sound was very special from the first note. Those cans were not like the ones in mass production. For example, the plastic material which was holding the magnet in its' place was made of 4 sections. They didn't have a serial number, instead, on both sides there were the shiny K 1000 logo. Yet again, the sound was amazing. So, time passed by, my teenage years ended and money became one of the key issues in my life, therefore I had to part with them one by one. However, in the mean time, I could be able to listen a lot of amplifiers with them, Conrad Johnsons, Rotels, Luxman, Bryston, Yamaha, Jadis, Mal Valve, McIntosh and others.

Now that the things have changed, I could be able to lay my hands on another pair with a 030xx serial number. I was very glad to find out that the sound quality of the Engineering samples and these headphones were exactly the same. I assume this has to do with the serial number being low. Anyway, I hooked them up to my Radford STA 25 Series III amplifier, which I also found at a flea market for less than 10Euros and the search was over at the first note.

The best was so far Radford STA-25 Series 3 (speaker terminals at 16Ohm position) where everything sit into their places so nicely that sound becomes a part of the reality that you are in.

For those who are interested:
Pioneer SA-810: Acquired for 0(zero) Euro
The Fisher KX-90 Control Amplifier: Acquired for 20 Euro in working order from the same flea market in Turkey, Istanbul