I'm thinking I didn't change the rectifier in my other unit either, the third unit I have already had it changed I believe.REALLY? Let me go thru mine, as it's been out of the loop for a couple years. And it's a 50000 series unit using 7247's instead of 7199's.
Steve; If you replaced the Rectifer on the others, did you put a dropping resistor in the bias line (neg lead) and what value/wattage. I think I'll pull up the X-202 thread of Dave's and see what I'm up against.. LOL! I trust Selenium Rectufriers about as far as I can throw a small block head. And it aint FAR! I've got a Table Model left over and it's going in. I'll check voltages before and after.
They have surprising power, the X-202 puts my KX-100 to shame. I think Cornwall's bring out the best in these amps, bass is crazy good.Got the tubes for the X-202, plugged them in with some DeOxit Shield on the pins. Hooked everything up, flipped the switch, waiting........Waiting......WAITING! NO SOUND! WTF? So my favorite friend(plastic poker) and I started poking around. Found C55 with a loose wire. Took apart the connection and re-configured all the leads (5 into this itty-bitty hole!), soldered it all together. Flipped the switch and it beat the KM-60, as i had the laptop running thru AUX, and switched over to FM. FM was barely there and then the KM-60 woke up.
Compared to the X-101-B 1.) Bass is a bit less but more controlled thru the Heresy's. 2.) Stereo Dimension is opposite of the 101-B, Counter clockwise for the 202, clockwise for the 101-B. )3.) No headphone jack is already missed. Will's gonna have to use the Executive once I get the room emptied. 4.) Had to go thru a couple X-202 threads to find out how to bias and balance it with the back panel mods. Tubes are running 29.8 to 30.6ma. That's as close as I could get it without breaking out the DeOxit. Balance is less than .8 mv per side. This is with Brand NEW EL-84M's that Jim matched to a gnat's ass.
I love the lights, and the front panel will get a polish this week. It's a ballsy little sucker.
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I knew you'd enjoy the X-202, wish you could get a listen to it hooked to some Cornwall's. I agree with you about the modded bias setup, the original way was just total BS.It just keeps getting better. I stuffed a quad of K42Y .047uf 630v caps in the output coupler position. They were already broke in so no waiting around for Break in. HOLY SHIT! Using the laptop for a source, I plugged in The Allman Bros. Live from A&R Studios album. I thought I had heard the whole thing withthe X-101-B. NOT! breathing into the mic, foot hitting the bass drum pedal milliseconds before the beater hit the skin, shit like that. The only thing I miss is the lack of a headphone jack.
The Bias and Balance setup's are super simple to use. Probes on both screws for one side and adjust the pot to get a zero reading (I got 0.1mv and 0.4mv) and then set for .30v by putting the black probe on th chassis and red on one screw or the other, which across a 10ohm resistor is 30ma. Then double check the balance. The pots probably need some more work with DeOxit D5 and Shield S5. If they don't improve it's gonna be new pots for all 4.
Trust me when I say I know all about the Klipsch models, I currently own two pair of Heresy's, Cornwall's, KG-4's, CF-2's, CF-3's Belle's, used to own Chorus, Forte's, Lascala. Cornwall's are better than them all!IIRC Cornwalls are just Heresy's in a larger cabinet. I'd love to get a pair of K-Horn's or LaScala's, but I'd have to buy a larger house to place them! The Heresy's are big enough for the house and the room they are in. Plus I can open the front windows and listen to them while working on the truck. I was listening to some 5th Dimension this morning and Marilyn McCoo was sounding luscious enough to wake up Willi! One of the songs had someone tapping a bell( I think it was Wedding Bell Blues), and the SOB sounded like it was right next to my ear. Never had that happen before. Laptop is going direct off the headphone jack into the AUX input on the 202. NO DAC, NO BUFFER. It sounds better than FM from the KM-60. And I'm only using 1/2 volume on the Laptop. Right now I've got Abbey Road on cd (EMI Remastered off the Original Tapes) running and it sounds as good as the LP without the noise from dust.
They have surprising power, the X-202 puts my KX-100 to shame. I think Cornwall's bring out the best in these amps, bass is crazy good.
I haven't done any comparisons with my other amps, but the 500C and and X-100-B seem to both get loud at similar settings. The difference is in the tonal quality. The 500C falls more to the neutral side,wthe X-100-B not only gets loud, but it's warmer, and more colorful. It's difficult for me to describe, but it makes everything sound more authentic, especially through the Cornwalls, then the 500C. Very much an amp I can easily listen to for hours on end.
Wish I had an X-202.
I've got the kit version of the X-100-B (a KX-100) but I can't compare it to other Fisher equipment as I don't have any other Fisher equipment functioning yet (but someday). However.... from what little I've listened so far during my ongoing refurb of the unit, it seems to sound like it has a bump in the upper bass or lower midrange which I find very pleasing.