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Sonic Impact Tripath amp-->AkG K1000? - Page 6

post #76 of 86
1/27/05 at 2:56am
Quote:
Originally Posted by RonD2
Has anybody ever asked AKG what the pcb does? I like the sound better without it.
i too wanted to know since i also thought they sounded better without the PCB's


Quote:
From: Frank Echanique
Sent: Tuesday, November 02, 2004 11:25 PM
To: Zucha, Mark
Subject: PCB in K1000's



I was wondering if it would be possible to explain the function of the little PCB inside the K1000 drivers and what it is supposed to do… and also if removing it would somehow be bad?



Thanks

-Frank
Quote:
RLC network is necessary for some kind of fine tuning of the frequency response. Without these components the K1000 will show a slight irregularity in the otherwise flat response.

Kind regards



Karl





Mark Zucha

Technical Services Rep.

AKG, USA
well whatever the irregularity is, it sounds better to me

anywho, ive been using my t-amp with my k1k's for a while and had no issues... i would test for HF and stuff, but there is no way im hooking my radio's output to my t-amp lol

*looks at t-amp*

"i wonder if this thing will do VHF"

lol
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post #77 of 86
1/27/05 at 5:25am
Quote:
Originally Posted by flecom
well whatever the irregularity is, it sounds better to me
Flatter response graphs look good, but phase changes and component quality may have detracted something from the sound. Then again, it's just a tone control...

Quote:
*looks at t-amp*

"i wonder if this thing will do VHF"
The switching frequency varies from 100kHz to 1MHz using an (undocumented) adaptive algorithm. The harmonics are surely VHF. Keep your ears open on the 2 meter band for replies from Mars.
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post #78 of 86
1/27/05 at 6:42pm
i'll hook it up to my 2m antenna outside and play some music for the martians
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post #79 of 86
1/28/05 at 11:22pm
Quote:
Originally Posted by jung
Would anyone try Sennheiser HD580 without a common ground, maybe by cutting the cable and sticking the bare wires into the amp output?

I tried it with a common ground. The result has no bass.

I don't know if this has been done, but I took my HD600 stock cable and snipped off the 1/4" jack, and plugged the bare wires into the T-amp. It sounds pretty good. Maybe with a better cable it would sound even better. Maybe my imagination but it does sound somewhat edgey on the top end so I went to Radio Shack and bought a pair of 10ohm 10W resistors. It was either this or stringing 4 or 6 1ohm resistors in series. Anyway, the top end calmed down some but am eager to try a 4 or 6ohm resistor.
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post #80 of 86
1/29/05 at 3:57am
Reiner,

Do you know the upper limit of the frequency response of the meter you used to make your measurements?

- Eric
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post #81 of 86
2/10/05 at 3:57am
I just purchased a K1000 and a Teac T-amp.

Any updates on the HF peak issue?
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post #82 of 86
2/10/05 at 5:15am
Quote:
Originally Posted by doobooloo
I just purchased a K1000 and a Teac T-amp. Any updates on the HF peak issue?
Get your scope out, doobooloo! We kicked around some ideas about how to rule out the problem with a scope and a small series resistor.

Do you have a schematic of the Teac amp's chip and filter? Maybe you could model it for us.
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post #83 of 86
2/10/05 at 5:27am
Quote:
Originally Posted by doobooloo
I just purchased a K1000 and a Teac T-amp.

Any updates on the HF peak issue?
Teac makes one now?

-Ed
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post #84 of 86
2/10/05 at 8:17pm
Quote:
Originally Posted by Edwood
Teac makes one now?

-Ed

Yup. For not much more ($99), you get a three-channel (four channels available but only three used), 30W/channel Tripath amp.

Here is an interesting site: http://www.tommytube.com/Teac-tripat...the_teac_a.htm
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post #85 of 86
2/10/05 at 9:29pm
Quote:
Originally Posted by doobooloo
Yup. For not much more ($99), you get a three-channel (four channels available but only three used), 30W/channel Tripath amp.
I got the Sonic Impact because it takes AA batteries.
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post #86 of 86
2/11/05 at 11:45am
Quote:
Originally Posted by doobooloo
Yup. For not much more ($99), you get a three-channel (four channels available but only three used), 30W/channel Tripath amp.
As usual this amp is a bit more expensive here.
At least $300.
Europe sucks.
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