o, i have plenty of confidence dweller, don't worry about that its the $600 i'm thinking about spending and not getting much results. |
brf, i dont think my amp will work with el34's. i did think of them because i hear they shine on midrange and my speakers have that in spades. I have heard though that the new 502 amps can. maybe down the road when its time to change out amps going with something that uses the el34's. i thank you all for your input on this and will let you know how it all works out |
I hear you jed. thanks for the input. im leaning that way. just wanted a few audiogoners to lean me that way. such a shame, only 200 hrs on the 120's |
ok, now that wolf has spoken i guess i will just have to spend the dough. what the hell, whats with another set of tubes hanging around |
The Fusion 3502P is reworked version of the JD502P. It has upgraded clarity caps and resistors and diodes. Also with a flick of a switch, you can set your amplifier up to operate 6550, KT 88, KT 120, KT 150 or EL34 Vacuum Tubes. The circuit has been redesigned and placed the same venerable steel chassis. Parts of the unit have been upgraded to include ESA clarity coupling caps, high speed diodes and DC voltage to the preamplifier tubes which lowers the noise floor and enhances clarity, air and dimensionality. You choose the tubes you want with your order. And for the best part, a clear, smooth sound with the 3 dimensional air that vacuum tubes can deliver. Fusion series amps have the level one upgrade components- ESA clarity caps, Hexfred diodes, and Vishay resistors. Can be upgraded with Rike Audio caps. Ask for price. just got this off the net. the new 502p amp. sounds interesting $1,400 ... |
i have a novel idea!! since i have two amps in mono i can buy one set of 150's and run one amp 150 tubes and the other amp 120 tubes. then i can compare the difference of the left and right speaker 's sound. that is of course after the 150'a break in. just a thought |
tubegroover, im going to do it. just wanted some feedback on the subject. going to order some today. thanks |
wise guy, the 150's were more money two years ago. now that i have more time to listen i will get my moneys worth |
you know everybody before you know it the kt 180's will be out and all us suckers that went out and spent good money on 150's are going to plunk down $100 plus a tube for them. in the mean time the 150's are ordered. will let you know how they work out |
just to let you all know i did pick up the 150's. not in yet but going in tomorrow. i will let you all know how it works out. now about the remarks on the not yet here kt 180's,, kt200's, kt250's and so on. i did mention in the past that since we have the kt 90,kt100,kt120 and now the kt150, we would all assume somewhere in the works is a new tube. why not?? why stop at kt150. just a conversation piece for now. sort of a joke if you know what i mean. but lets just imagine. all of a sudden there it is, the new kt200 capable of 100 watts per tube. all yours for $150 each. i can see it down the road. and we are all going to run out and buy them. just the nature of the beast. technology doesn't stop, we all know that. so who's first for the new future tube. |
well, i installed the 150's today. had both amps running for an hour before one amp shut down!!!. usually when that happens its for a reason. it happened to me once before when a 120 blew and took out the fuse with it. so i was expecting a blown 150 for some reason. i started the amp back up and it stayed on. after 20 minutes i reset two of the tubes bias. was below 500mv. all are at about 550mv. so i shut her down after about a half hour. we will see what happens tomorrow when i want to run them again. so i will say with the one hour i have on the tubes they do sound good right out of the box. cant say they blow away the 120's right now. that will need some time for break in. right now i would just like to see the amps stay on for more then an hour without shutting down. since others are running 150's in their jolida's why shouldent i be able too. dont worry, the 120's will go right back in if there seems to be a problem here. |
want to be more specific on that dweller. you said i need more confidence. well i spent the big bucks and installed a set of the big and fancy kt150's. one amp shut down in an hour. so now what am i supposed to do?? hope for the best and its never going to happen again. a friend of mine said to me a few years back when i was asking about getting a tube amp tube trouble. you know, i think he's right. had about 10 different ss amp's over the past 30 years, never any problems. now i have problem's, go figure. ok, so the jolida is not $10,000 bucks but it should be good enough to work without shutting down every hour. tomorrow is another day. the amps go on in the morning, the bias will be checked on all 8 tubes to 500mv like they want. throwing in a cd, crank it up and let see what it could do. i dare it to shut down again. so there, big tom here |
folk's, amps ran for 3 hours today. all ok. so with 4 hours on the kt 150 tubes all i can say for now is they sound good. nothing spectacular here. its a funny thing but when i change out gear to me there are always little improvements here and there. not the big changes i read about in just about every post on audio sites. i think its just a little to much bs on most peoples part. yes, everything sounds different but to hear huge amounts of differences???? maybe folks want to hear a big difference because of the money spent. to me, it just seems to almost sound the same. something different here and there but no big WOW the bass is tighter, the mids are smother,, the high's are higher. my amp came with 6550's they sounded good. put in 120's they sounded good. maybe a little better,hard to really hear. now 150's, they sound good also. can i say they sound twice as good as the 120's? no, not right now anyway. am i expecting a big improvment down the road. according to everybody who has 150's i am. we'll just wait and see. to me you want a change in sound, change out your speakers. that will do it. |
i hear you wolf. 750 hours to go. i have my amps (four of them) on a dedicated 30 amp line (no problems with power here). bias held good today, no adjusting. you know i spoke to mike and another feller at jolida about bias levels and was told you can go 600mv's no problem if you want to. thats with the 150's. said it wouldent hurt a thing, just give them a little more kick. i tend to run a little over the 500mv level. all at about 550. i can sure say the 150's look nice. not sure why one amp shut down the other day after a hour but if it dosent happen again that would be great. |
thanks everyone for chiming in. all seems to be good now. everything working ok. 8 hours on the 150's now and the mid/tweeter panels seem to be singing. my cd player just lost its right channel, go figure. a cambridge 840. good player when it was working. but i guess their all good when working. looking at the net I see they have problems that have popped up and i guess mine has some of them. and that what happens when you buy a $1,200 cd player, they shit the bed like everything else. and getting it fixed is not going to be cheap. o well |
