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DIY T-Amp user/diyer come here :), TA2024 complete build board diy

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ongbs
post Sep 4 2008, 02:27 PM

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QUOTE(jazzy939 @ Sep 4 2008, 02:18 PM)
Hehe.. tongue.gif

I doubt it if there would be any sonic differences detectable.. unless you have super duper hearing capabilities..  laugh.gif

Anyway, do report in if there is any..

Have you completed the assembly of the whole kit?
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Yes, all installed.
It does sound diff from patient 1 but since input caps and coils all different for both patient so still hard to tell with the coils alone how the SQ affected. rolleyes.gif
ongbs
post Sep 4 2008, 03:41 PM

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xtorm, better not as t-amp design not suitable for driving headphone.
you can't use normal 3.5mm stereo jack as T-amp output can't share common.


Added on September 4, 2008, 3:43 pm
QUOTE(jazzy939 @ Sep 4 2008, 02:29 PM)
That’s a fair statement!

But important thing is, how's the sound now?
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The SQ suit me and match my FS spk more tongue.gif
With new mini donuts and my custom input caps, it sounds more "airly" (more stereo effect/spacious) ...whatever you call it tongue.gif

This post has been edited by ongbs: Sep 4 2008, 03:43 PM
ongbs
post Sep 4 2008, 04:40 PM

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QUOTE(jazzy939 @ Sep 4 2008, 03:57 PM)
Oh yes.. this is true. T-Amp NOT suitable for driving headphones... tongue.gif

Customs? As in?  hmm.gif
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hehe...yes custom mod by connect 2 caps each side, 2uf together with 0.33uf for each ch.
It is more like tuning th sound...well it sound nice to my ears, but doesn't mean it suit other as well hmm.gif

This post has been edited by ongbs: Sep 4 2008, 04:40 PM
ongbs
post Sep 4 2008, 05:15 PM

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Jazzy, how's your findings on donuts now?
Any new improvement?

I found that if the uH too low the output totally gone (no switching?) sweat.gif
Sounds like >90% distortion or those burnt amp stage sounding... shocking.gif

My current donuts only need 5 windings...anything more will have the higher end detail missing..
ongbs
post Sep 4 2008, 07:16 PM

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QUOTE(jazzy939 @ Sep 4 2008, 06:14 PM)
ongbs,
my donuts that I wound seems to be performing terribly well. rclxms.gif The airiness is excellent! On my 'teeny weenie' donuts, I need about 14 windings to get it right. wink.gif
I guess the type of materials of the donut have direct influence over the inductance, hence the final audio output.
Will be a permanent feature on my first board, on my second board, I want to use a heavier wire gauge or an air core.. coming, next change wink.gif

Only 5 huh? Lets see some pix!! tongue.gif
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yes, 5 only tongue.gif

Inductors design more complex than capacitors.
Yes, the core material really affect the results/values a lot!

Wait till I snap pics then will upload...together with my input caps brows.gif brows.gif brows.gif


ongbs
post Sep 5 2008, 10:30 AM

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QUOTE(MANKiND @ Sep 5 2008, 08:54 AM)
never notice that i already have this great amp...nearly sold few month back...i'm so lucky then...here my yulong t-amp internal pic...

» Click to show Spoiler - click again to hide... «


but will start shopping for diy part tomorrow...hopefully nothing goes wrong as i'm super noob in diy blush.gif
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hehe sell it to me tongue.gif
ongbs
post Sep 5 2008, 12:30 PM

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QUOTE(jazzy939 @ Sep 5 2008, 11:03 AM)
hello! Berapa banyak T-Amp you mau? tongue.gif
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hehe...this one look "solid", put in my sub ok kah?
ongbs
post Sep 5 2008, 01:50 PM

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QUOTE(Y.C. @ Sep 5 2008, 01:23 PM)
Probably this is already stale news but here’s my own experience with the T-amp kit:

I helped my colleague (one of the guys I managed to poison) to solder an el-cheapo RM3.00 volume potentiometer to the T-amp using JP’s 40sen per metre multistrands wire and plugged it into and bypassing the built-in amp of a JVC UX-5000 midi compo in my office.

When the sound comes about after ridding off some initial hums, viola, it sang so well. I had never heard my JVC midi to sound so complete before – the clarity, details, tone of instruments, macro dynamics, decay, the emotion factor, PRaT and not forgetting the bass I am now hearing through the 3” paper-cone speakers are awesome. I was also able to notice the recording of a particular CD was made from aged master tape, yes, the T-amp is that transparent! And all these from a RM55 kit amp? Hard to believe but it’s definitely true. So much so, when we finally took out the T-amp from the JVC midi, it was rendered not listenable anymore – blur by comparison.

The day proceeded with both guys I poisoned calling /sms-ing me at my mobile even at wee hours of the night. Boy, both are badly poisoned and excited by the unbelievable sound they are getting from their T-amps.

A finding by my friend (the other guy poisoned by me) – he has been following comments made by forumers of this thread and he experimented with some input caps himself before finally settled for my extra pieces of made-in-Portugal Vishay 2.2uF 63V polypropylene caps. He noticed that the slight pop sound to loudspeakers after changing input caps are still there even with these caps and thought perhaps the offending small caps which came standard with the T-amp kit are more to discharge off the extra charge stored in the caps and so to take care of pop sound rather than to enhance the sound quality. He felt with Vishay 2.2uF, the highs are more apparent, sweeter-sounding and more ‘flesh’ to vocals. Hmmm, ……

As for my own T-amp, I shall be fixing a 24-steps 50K ohm discreet attenuator to it and commence work after office today after having double-confirmed the input/output soldering points to it. And at rate things are progressing, I reckon I will spend my entire weekend with my T-amp.  tongue.gif
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Y.C,

Good jobs you did for poisoning others tongue.gif

Well, some web did high-lighted this Vishay caps before, you may goggle around.
ongbs
post Sep 5 2008, 02:17 PM

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QUOTE(xtorm @ Sep 5 2008, 01:55 PM)
hahah bro great to hear that wink.gif

btw got your sms, im totally not free tis weekend, my friend also bugging me abt the t-amp for his car,try once edi kena very deep tongue.gif

so probably meet u up next week at working hours or see howlor...h
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working hours ...hehe...I smell some "snake" flesh! rolleyes.gif tongue.gif
ongbs
post Sep 5 2008, 02:45 PM

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QUOTE(xtorm @ Sep 5 2008, 02:19 PM)
hahaha

canot ah tongue.gif tea timemah....tongue.gif

wei u got alot of support wor...hehehe i mean the other side biggrin.gif
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brows.gif brows.gif brows.gif notworthy.gif
ongbs
post Sep 5 2008, 02:55 PM

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QUOTE(jazzy939 @ Sep 5 2008, 02:47 PM)
Heyy. What you guys talking about ler...  shakehead.gif
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hehe, out topic a bit...a "dispute" thread against me shakehead.gif tongue.gif
http://forum.lowyat.net/topic/783595
ongbs
post Sep 5 2008, 08:11 PM

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walao, so many ppl got their T-amp but still this few are replying threads?
How come?


Added on September 5, 2008, 8:20 pm
QUOTE(jazzy939 @ Sep 5 2008, 04:42 PM)
Oh yes.. we're always on the look out for 'gems'.. tongue.gif
Personally I have NOT used any Vishays. This would be the first time. No doubt we have read all the good words, in the end, the proof in the pudding is in the eating, and we'll know soon enogh! biggrin.gif I don't think it will disappoint our expectations biggrin.gif

We're gonna be busy this weekend, huh? wink.gif

BTW, do caps need to be 'burned in' too?  hmm.gif
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I think so tongue.gif
Kasi burn in till the material stable in its structure?

This post has been edited by ongbs: Sep 5 2008, 08:20 PM
ongbs
post Sep 6 2008, 12:06 AM

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QUOTE(jazzy939 @ Sep 5 2008, 11:52 PM)
some people are not bothered. as long as they have what they wanted, thats all it matters. don't want to share anything.
isn't that selfish?
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hehe...jazzy then be nice here...poto mali (again).... rolleyes.gif
ongbs
post Sep 6 2008, 12:55 AM

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QUOTE(jazzy939 @ Sep 6 2008, 12:35 AM)
aik. where are they?
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eh...what "where are they"?
i ask you to post your progress pics lah...what you expect huh? whistling.gif
ongbs
post Sep 6 2008, 02:09 AM

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QUOTE(jazzy939 @ Sep 6 2008, 01:12 AM)
doh.gif  and I was referring it to you!
Hey.. pics of your post- 'King donuts' are sopposed to be uploaded tongue.gif
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walau eh...you didn't update lah bro...
no more "king donuts", they've been replaced to "mini donuts" tongue.gif

Pics? Not today, not in a good mood for this blush.gif
ongbs
post Sep 6 2008, 07:01 PM

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bro Y.C,

Another "nice" review tongue.gif

Wow, look at the giant size 24-steps attenuator drool.gif drool.gif drool.gif
ongbs
post Sep 6 2008, 10:42 PM

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QUOTE(Y.C. @ Sep 6 2008, 09:28 PM)

Thanks on compliment on wooden casing. I like natural woods but most people will actually look at the issue here as it is people like me who caused more trees to be felled.  smile.gif
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Hehe, not an issue as the box already there tongue.gif
You are not cutting a tree to make this box doh.gif whistling.gif
ongbs
post Sep 7 2008, 12:59 AM

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QUOTE(jazzy939 @ Sep 6 2008, 11:51 PM)
Y.C.,
You're most welcome biggrin.gif
True to the words, we're doing this, ie sharing and learning at the same time because of our passion. Yes.. time for me tocontribute after all this while just reading and learning all those great stuffs from the forums all over  laugh.gif

Local mag? Engaging us? Would you accept the offer?  I would!  laugh.gif  I got to play with the TOYS!  rclxm9.gif

Nah NOT the Cerafine, just a 'normal' one.. wink.gif Will put up some pictures later.. I am 'not at home' this moment..

Can't wait to get my other stuffs for the 'upgrade'.. looks like more reviews coming up... tongue.gif
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walau bro, after read you guy's review, I am a bit "photo-shy" and "comment-shy" liau doh.gif sad.gif
ongbs
post Sep 7 2008, 01:28 AM

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QUOTE(jazzy939 @ Sep 7 2008, 01:14 AM)
Eh, don't la like that bro..
We're here to share mah... incl. pix! tongue.gif
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Ya kah? Then my pics will come very soon liau! doh.gif tongue.gif (nah jazzy, you knew that I really like to talk nonsense right, forgive me pls?)

"Got to meet the leng-lui (Cherry) today, she's few months pregnant! hahahaha "

Nah nah....your bad jazzy, at least give some 'hope" to bro xtorm.... whistling.gif
ongbs
post Sep 7 2008, 02:08 AM

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QUOTE(gabanyayaya @ Sep 7 2008, 02:05 AM)
what's leng lui?????????

joint....will give answer tomorrow
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"Got to meet the leng-lui (Cherry) today, she's few months pregnant! hahahaha "

walau bro, only previous post lah... doh.gif tongue.gif
you ignore those thread without "T-Amp" words ah? whistling.gif

This post has been edited by ongbs: Sep 7 2008, 02:10 AM

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