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K1000 OMG!! - Page 3

post #31 of 41
Quote:
Originally Posted by Trogdor
Has Mr. Mardis tried this and experienced these issues for himself or is this just theory? No offense to Michael, but many many people have used the T-Amp with the K1000 with no problems so I have a hard time understanding the real issue (DC leakage, c'mon...).

Don't get me wrong, I'm not intending to use the T-Amp with my AKG K1000 but I have not seen a real reason not too if you really want too (taking the right precautions)!

I think I'm between the Clari-T and the m902 at this point (at least for my purposes).
Because of the potential for death by DC offset, Michael Mardis always uses a filtering device with a large DC blocking capacitor when he uses the T amp. So, the answer to your question would probably be that his warning is based upon a theoretical tragedy. The thing to remember is that if DC leakage is damaging your drivers, the final results may not show up right away. All I'm saying is that this warning is something to consider. If you want to trust a $30 Chinese amp for the purpose of driving your soon-to-be-discontinued/expensive-to-repair $1300 earspeakers, then please be my guest. As for myself, I would not do it. I'd go for the 902 if possible. At the very least, you'll end up with a lot more to take pride in...
post #32 of 41
Quote:
Originally Posted by Michael G.
Because of the potential for death by DC offset, Michael Mardis always uses a filtering device with a large DC blocking capacitor when he uses the T amp. So, the answer to your question would probably be that his warning is based upon a theoretical tragedy. The thing to remember is that if DC leakage is damaging your drivers, the final results may not show up right away. All I'm saying is that this warning is something to consider. If you want to trust a $30 Chinese amp for the purpose of driving your soon-to-be-discontinued/expensive-to-repair $1300 earspeakers, then please be my guest. As for myself, I would not do it. I'd go for the 902 if possible. At the very least, you'll end up with a lot more to take pride in...
Michael, understood, I was stating that the DC leakage issue is really theory and has not been verified (thankfully I guess).

I have no idea what I'm going to do for SS amplification at this point (I suppose the m902 might fit the bill (my wallet is dead)).
post #33 of 41
Quote:
Originally Posted by kin0kin
DC offset = 8mW
did I read something wrong here?
Nope. It was also posted as 100 mV, which is what I should have posted, but I remembered the mW number, which is what I compared to the AKG spec.

http://www6.head-fi.org/forums/showthread.php?t=146533&
post #34 of 41
Quote:
Originally Posted by Trogdor
)I have no idea what I'm going to do for SS amplification at this point (I suppose the m902 might fit the bill (my wallet is dead)).
Hey, you've obviously got to do something so go for the T amp! At the very least it'll hold you over until you can get something else. I did own a T amp once. First off, I was amazed that the tiny thing even fired up and took off running. It sounded pretty good with my K-1000's - for all of about 1 minute. Then, after a final crescendo of crackling sounds, it suddenly died. So, I buried it. It turned out that the capacitors had become... incapacitated. Hip, Hip Hooray for the cheap labor and parts that makes certain "bargains" possible! All I remember about the little amp now was that it was clear, detailed, and sorta sharp sounding. Probably would have been a little fatiguing with time. By contrast, my Bryston 2B LP is a very fulsome and warm sounding amp that I can listen to for hours on end without ear fatigue. No trace of the thinness or shrillness that lesser amps impart. So, I wish you the luck that scores of other T amp owners have had so far. I was not one of the "lucky" ones, I guess.
post #35 of 41
Quote:
Originally Posted by Hirsch
Nope. It was also posted as 100 mV, which is what I should have posted, but I remembered the mW number, which is what I compared to the AKG spec.

http://www6.head-fi.org/forums/showthread.php?t=146533&
I see, you wouldn't wanna refer DC to W, it just confuses people sometimes. anyway, it's true that approximately 8.3 mW becomes heat though.
post #36 of 41
Quote:
Originally Posted by Michael G.
Hey, you've obviously got to do something so go for the T amp! At the very least it'll hold you over until you can get something else. I did own a T amp once. First off, I was amazed that the tiny thing even fired up and took off running. It sounded pretty good with my K-1000's - for all of about 1 minute. Then, after a final crescendo of crackling sounds, it suddenly died. So, I buried it. It turned out that the capacitors had become... incapacitated. Hip, Hip Hooray for the cheap labor and parts that makes certain "bargains" possible! All I remember about the little amp now was that it was clear, detailed, and sorta sharp sounding. Probably would have been a little fatiguing with time. By contrast, my Bryston 2B LP is a very fulsome and warm sounding amp that I can listen to for hours on end without ear fatigue. No trace of the thinness or shrillness that lesser amps impart. So, I wish you the luck that scores of other T amp owners have had so far. I was not one of the "lucky" ones, I guess.
Thanks Michael, no worries. I'm not so sure I'm going to use the T-Amp. So do you need to put a resistor on it or something or can I just use it as it? I'm still not positive about this....
post #37 of 41
Quote:
Originally Posted by Trogdor
Thanks Michael, no worries. I'm not so sure I'm going to use the T-Amp. So do you need to put a resistor on it or something or can I just use it as it? I'm still not positive about this....
Back when I was still searching for an amp to drive my K-1000's, I bought a T amp. I took note of Michael Mardis' warnings that the noise filters in the T amp may not work correctly if you use the amp to drive headphones. Next, I asked Vinni Rossi (of Red Wine Audio/Clari-T amp fame) about the noise issues that Michael Mardis was warning us about. Vinnie seemed to be aware of the problem, because he advised me to connect 6 ohm resistors across the speaker outputs if too much background noise was present. It seems that the noise problem is present on some, but not all, T amps (yet another indication of bad quality-control standards?). So you'll just have to try a T amp out and decide if your particular sample needs the resistors. Have fun, whatever you do...
post #38 of 41
Quote:
Originally Posted by Trogdor
That pic is just so funny!

Well I need to find a SS amp for the K1000 and I'm not sure what is really out there (and funny enough all of the previous threads aren't that useful, i.e. the focus on a lot of tube stuff). I think the T-Amp would do the trick but as I stated in another thread (I think), the other option, though a little bit more expensive, but in the same vain, is the Red Wine Audio Clari-T. I have talked with Vinnie and this seems like a great option (I still haven't decided yet).

The other possibility is the Grace Design m902 which apparently has enough juice to power the AKG K1000 (I think?).


malos sha-1
post #39 of 41
Quote:
Originally Posted by Trogdor
That pic is just so funny!

Well I need to find a SS amp for the K1000 and I'm not sure what is really out there (and funny enough all of the previous threads aren't that useful, i.e. the focus on a lot of tube stuff). I think the T-Amp would do the trick but as I stated in another thread (I think), the other option, though a little bit more expensive, but in the same vain, is the Red Wine Audio Clari-T. I have talked with Vinnie and this seems like a great option (I still haven't decided yet).

The other possibility is the Grace Design m902 which apparently has enough juice to power the AKG K1000 (I think?).


melos sha-1 but it does use 2 tubes.
post #40 of 41
Quote:
Originally Posted by flecom
welcome to team K1k... they are truly a unique and beautiful headphone, enjoy it
flecom,

i know you know better. the k1k is ear speakers not really a headhone. now, the K701, that is a headphone!!!!!! ain't it?
post #41 of 41
Quote:
Originally Posted by Trogdor
Well I need to find a SS amp for the K1000 and I'm not sure what is really out there (and funny enough all of the previous threads aren't that useful, i.e. the focus on a lot of tube stuff). I think the T-Amp would do the trick but as I stated in another thread (I think), the other option, though a little bit more expensive, but in the same vain, is the Red Wine Audio Clari-T. I have talked with Vinnie and this seems like a great option (I still haven't decided yet).

The other possibility is the Grace Design m902 which apparently has enough juice to power the AKG K1000 (I think?).

I would suggest the FirstWatt F1 by Nelson Pass - Pure Class A Current Source Amplifier 10 Watts per channel. A perfect match for the K1000s.
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