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

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March05
post Aug 15 2008, 08:53 AM

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Finally, I don't feel so alone anymore. The LYN T-amp club is now swinging! rclxms.gif rclxms.gif rclxms.gif

March05
post Aug 16 2008, 09:30 AM

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QUOTE(jazzy939 @ Aug 16 2008, 06:47 AM)
On top of that, it will be the cheapest way to power up the T-Amp... tongue.gif
It's the KISS principle, bro jazzy.

BTW below is my T-amp in current testing configuration. Waiting for more inspiration from you folks rclxms.gif rclxms.gif ...probably it'll go into a defunct but solid AKAI amp chassis for proper shielding, rip off the useless front facade/control panel, and voila, I guess it's something I can live with the next 10 years.

This post has been edited by March05: Aug 16 2008, 09:31 AM


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March05
post Aug 16 2008, 06:17 PM

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QUOTE(jazzy939 @ Aug 16 2008, 05:55 PM)
The blue 'gigantic' EPCOS cap was recommended by my son as he says, ....

Wah, now anak can ajar the ayah, bagus nya! notworthy.gif

Do you guyz think any of your cap mods will work on my TA2022 board....feeling so left out lah.

This post has been edited by March05: Aug 16 2008, 06:17 PM
March05
post Aug 16 2008, 06:22 PM

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QUOTE(ongbs @ Aug 16 2008, 06:17 PM)
..make sure your battery is fully charged tongue.gif
But when the battery is fully charged, the voltage can sometimes be as high as 14 volts....wouldn't that be bad? Perhaps a simple 12 v voltage regulator would be useful?
March05
post Aug 16 2008, 06:50 PM

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QUOTE(gabanyayaya @ Aug 16 2008, 06:41 PM)
but using the battery i think you have to design somehow the recharging mechanism so it will be ease every time need to recharge the battery.....
Isn't it a simple thing to have two batteries, and swap them over when the one in use starts to run down? To me, adding a charger into the system runs the risk of adding noise into the power supply.....back to square one.
March05
post Aug 16 2008, 07:14 PM

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QUOTE(jazzy939 @ Aug 16 2008, 06:56 PM)

The charger will NOT be energized when the battery is used during normal operation.. well that is what the Red Wine's unit was designed.
There is something about that logic of having an integrated charger that troubles me....if the battery runs down while you are in the midst of a nice jazz session, then you'll have to stop for an hour to recharge it, by which time the magic is broken..... whereas a spare battery is only a simple few seconds swap, and you continue merrily.

SLAs are ubiquitous items nowadays....the 7 amphours ones are going for around RM40 (local made?) - RM90 (good Japanese branded) in JP. DIN55 for your car....the maintenance free type, maybe RM400...(argggg--toothache). laugh.gif

gabanyayaya, I'm sure you can make a beautiful casing which can be opened easily, right? Even an undressed SLA can be hidden somewhere with just a gold plated (if you really want fashionable ones) cable leading to it.
March05
post Aug 16 2008, 08:22 PM

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Okay, I guess that kills my brilliant logic! doh.gif KIC wins the day!

This post has been edited by March05: Aug 16 2008, 08:25 PM
March05
post Aug 17 2008, 10:31 AM

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Ayoyo, so many gory multiple bypass procedures.....

There should be a R-rated warning from the Surgeon General's Department: "Some scenes may not be suitable for juvenile DIYers!". Like me. rclxub.gif
March05
post Sep 14 2008, 12:15 PM

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QUOTE(anima @ Sep 14 2008, 12:01 PM)
i read also confuse..so we use this with stereo passive bookshelf speaker only?
You are not confused it seems.

I first tried my T-amp with a Philips PSC805 and used it to drive my 25 year old Heybrook Bookshelf Speakers. The sound was fantabulistic, to say the least, a real eyeopener for a pc based music source, I have to say.

Hey, Najmods, have you got your own T-amp setup, or are you in Joint Venture mode with Jazzy?
March05
post Sep 14 2008, 12:42 PM

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QUOTE(Najmods @ Sep 14 2008, 12:20 PM)
....after he finishes his modding than he can build me one, which he plan to use my PC PSU to power the T-Amp smile.gif
er...that makes a great deal of sense, I guess, sort of. Although I don't know how you differentiate which stuff belongs to who, after a while. rclxub.gif
March05
post Sep 14 2008, 01:19 PM

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QUOTE(anima @ Sep 14 2008, 12:46 PM)
...but need fork money for passive speaker also...
Most ppl got a pair of old passive speakers lying about the house somewhere....how about a pair of discarded 6x9" 2 way car speakers? This is scrapping the bottom somewhat, but it works, and probably will still sound better than those off the shelf RM200-300 2.1 pc speakers. I guess you will have to DIY a bit more lah.

This post has been edited by March05: Sep 14 2008, 01:20 PM
March05
post Sep 14 2008, 04:40 PM

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QUOTE(gabanyayaya @ Sep 14 2008, 03:38 PM)
..... an active x over......you'll drooling all the way home...
Any ideas on how to DIY one or buy a simple one of the shelf? That's the last link in my system....already in biamp mode w᫦ith my T-amps...which shows a significant improvement over the previous biwire or basic monowire(?) mode.
March05
post Sep 24 2008, 01:53 PM

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QUOTE(jazzy939 @ Sep 24 2008, 01:39 PM)
grandspy,
you're most welcome! glad to help fellow forummer.. wink.gif
Man!, why are you noticing things that you're supposed NOT to see? laugh.gif
His name is grandspy, how can he not notice things he's not supposed to see? The more you hide, the more he'll want to dig. laugh.gif

This post has been edited by March05: Sep 24 2008, 01:53 PM
March05
post Sep 24 2008, 02:23 PM

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QUOTE(jazzy939 @ Sep 24 2008, 01:55 PM)
What's new bro? T-Amp no new development? biggrin.gif
My T-amps' already got toroidal trans, speaker protection, bi-amped, etc...what more to do? Haiya....bosan nya. I don't have a clue what to do next. icon_question.gif

You guys still having all the fun.....so when's the big T-amp TT session? At least that one I can join in lah.
March05
post Oct 4 2008, 01:45 PM

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Did somebody just say TT Session ? shocking.gif rclxm9.gif
March05
post Oct 4 2008, 03:39 PM

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QUOTE(xtorm @ Oct 4 2008, 01:51 PM)
...hows your t-amp?
my T-amps' been waiting forever to meet the little brothers when they finally come out of surgery.....so anxious lah. Hope every single one makes it safe, sound and in FINE tone! So far many close calls, but no terminal case yet, right?




March05
post Oct 8 2008, 04:56 PM

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QUOTE(Y.C. @ Oct 8 2008, 04:19 PM)
And summing up his analysis using figures -  Law of Diminishing Return / "Hukum Kepuasan Menurun"
Just a thought....if you extrapolate that Law the other way, you will get:-

RM5K vs RM10K, > 100% improvement
RM2.5K vs RM5K > 200% change
RM1.25K vs RM2.5K > 400% change
RM625 vs RM1.25K >800% change
RM312.5 vs RM625 >1600% change
RM156.25 vs RM312.5 > 3200% change
RM78.13 vs RM156.25 > 6400% change
do your own Maths from here....my fingers are tiring fast.

In other words, start as cheap as possible, and then double your upgrade budget for maximum improvement.




March05
post Oct 8 2008, 06:22 PM

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QUOTE(Y.C. @ Oct 8 2008, 05:35 PM)
March,
Unfortunately, the Law of Increasing Return never existed in any field which we could think of.  tongue.gif
Exactly, I was trying to point out that that `Law', just like any other, has to be qualified according to premise. I'm curious why Vincent chose to start at RM10K. Is it his opinion that anything less than RM10K is not worth starting from?

Because if I choose to start at say, RM1K, then the Law would turn out this way....
RM1K vs RM2K...50% improvement.
RM2K vs RM4K...25% change,
RM4K vs RM8K..12.5% change,
RM8K vs RM16K..6.25% change,
RM16K vs RM32K..3.13% change,

And that is using the same Law of Diminishing Returns, isn't it?

Now if you look at that reasoning, you shouldn't be spending more than RM10K on a system because you won't be hearing much difference above that. This is based on Vincent's cutoff point at around 6% in his example. Now, think if one started the Law at RM100K......

When I see you guys trying and testing various combinations of components with the TA2024....I see ppl having lots of fun and outright enjoyment. Sometimes we reinvent the wheel, but if one gets a thrill out of it, then doesn't that add to the value? I'm afraid I'm too much of a moron and a coward to join in and attempt something with my precious T-amps, but I don't doubt that the journey to improvement (via a bit of de-provements) is a reward in itself. And when the honoured sifus jump in with their advice about why this and why not that, it gets even better!


March05
post Oct 8 2008, 09:14 PM

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QUOTE(Y.C. @ Oct 8 2008, 08:26 PM)
If I had not remembered wrongly, the Law of Diminishing Return is not always linear,
.......
If you want to share our fun, just buy a RM55 board to try some soldering work. On?  icon_idea.gif
In fact, as far as I can see from my text books, most `laws' in nature are non linear, exponential ones are more common and some are downright chaotic! laugh.gif

Oh, thanks for another vote of confidence that my T-amps do not really need any modding. However, I think if bsl555 were allowed lay his hands on them it'll be a different story....anyways, he has given me his opinion of them after our weekend `shootout' against the NAD. It'll remain a secret unless he chooses to reveal it to you folks himself. sweat.gif

Okay, the depth of my DIY efforts....just in case you folks think I'm a total nincompoop with the soldering iron....a Y.C. cap now drives my Mitchell turntable PSU! (psst...bsl helped me find it, the capacitor I mean, not the turntable, at Jalan Pasar, together with a spanking new Hakko soldering gun, but honestly, I did the soldering all by meself.)

This post has been edited by March05: Oct 8 2008, 09:21 PM


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March05
post Oct 8 2008, 09:59 PM

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Oh dear, I just realised that I may have sounded like I'm against Vincent's analogy. Please let me say comprehensively that I'm not, as I do see some correctness in parts of it.

The problem is, I have this uneasy observation that Audiophilia is getting impossible to rationalize. Everyone seems to have different points of entry; some people are easy to please, while others wouldn't touch a 5 figure sound system with a ten foot pole.

Most of us (actually, speaking of meself the most), just muddle along hoping we're heading the right way! I mean, how many ppl have the opportunity to properly audition every piece of audio equipment and combination at all price levels in the market before deciding what to buy?


Added on October 8, 2008, 10:21 pm
QUOTE(wui223 @ Oct 8 2008, 09:56 PM)
March05: Bro, what model of Hakko u using? mind to tell me how much is it?
It's a Hakko Presto. Priced ~RM60. Marvellous quality....improves and upgrades my soldering to no end. Can't imagine why I was using those el cheapo made-in-china Hakko look-alikes before this.

bsl, thanks for that brutally honest opinion (sounds familiar!) of my T-amps. Yes, the new plan is to find a great chassis to put them in, and a volume pot so I can pull the Yulong DAH1 out of the system once the CA640P comes along. Now, the Law of diminishing returns means I musn't spend more than another RM800 for the chassis and v. control, so I'm kind of limited in choices, right?

This post has been edited by March05: Oct 8 2008, 10:21 PM

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