Audio Research 75 SE

According to my source, the KT-150 tubes account for about 40% to 50% of the improvement in the SE amps.

On the KT-150s ... they take a good 100 hours of break-in to start sounding their best.

Hmmmm, well Obfiscation Central were hardly going to leak any other set of percentages were they? when one does the math on the residual $3000 for a handfull of resistors and capacitors, together with a meter or so of silver plated copper wire!!! Or are we being taken full circle back to ' costly proprietary Teflon ' Capacitor Gate once again?

Those ARC technicians must charge more per hour than my Wife's Orthodontist and Gynaecologist put together!

Well, all I can say to you, Tsushimal ... is that ARC, like all businesses, has expensed to meet. Your post reminded me of the old joke where a brain surgeon had to call in a plumber to fix a major leak in his home. When the plumber presented the bill to the brain surgeon, the surgeon looked at the bill, then looked totally shocked at the plumber and said: "Hey pal, I'm a brain surgeon ... and I don't make this kind of money." The plumber looked the surgeon n the eye and said ... "Neither did I when I was a brain surgeon."

I had recently changed my capacitors from white to red when one of the capacitors went bad on my REF 250s. ARC also replace the wire at that time and I later upgraded to KT 150. But did not hear much difference after all these changes.

Well Oregonpapa! Should your career in stand up comedy not work out, it would appear that you would be a shoe in with customer services over at Obviscation Central.

Should you wish to make yourself really useful, perhaps you might inquire of your 'source' as to list of the componant parts utilized within the SE upgrade service/kit, the total within your basket upon checkout at Mouser may prove most insightful.