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

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zzzxtreme
post Aug 19 2008, 02:32 PM

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hey modder, u build one, then i pay you double the cost lah can?
order from internet would costs me almost $500.

jazzy939
post Aug 19 2008, 02:49 PM

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Anyone interested to make a 'quick' buck here? tongue.gif
zzzxtreme, you're taking the fun out of this la.. biggrin.gif
Whats your budget then?
Y.C.
post Aug 19 2008, 03:10 PM

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While waiting for my T-amp to arrive, I worked on the casing for it - a Rosewood jewellery box box measuring 8" x 5". I manually drilled some holes to fit in the speaker binding posts and RCA connectors and all this without proper tools, just using screw drivers of various sizes. I Would need another hole to fit in the DC current connector at one of the corner on the same side as these holes.

Attached Image
jazzy939
post Aug 19 2008, 03:18 PM

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Y.C.
You certainly don't waste time ya! biggrin.gif
I like your approach! Simplicity and resourceful! thumbup.gif
Now it makes waiting for your T-Amp more unbearable.. shakehead.gif
laugh.gif
zzzxtreme
post Aug 19 2008, 03:20 PM

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QUOTE(jazzy939 @ Aug 19 2008, 02:49 PM)
Anyone interested to make a 'quick' buck here? tongue.gif
zzzxtreme, you're taking the fun out of this la.. biggrin.gif
Whats your budget then?
*
hi jazzy

on ebay, i could buy a t-amp for about USD$30, but has no volume control. So i'm quite confused. do i need to use pre-amp as volume control?

reviewers says T2024 amps sounds as good as $10,000 amps, so I think $300-$400 is decent price kua.....


Added on August 19, 2008, 3:27 pmOh, if i get those t-amps without volume control, i can just hook up with a audio mixer ?

(like those 4 channel mixers with sliders)

This post has been edited by zzzxtreme: Aug 19 2008, 03:27 PM
jazzy939
post Aug 19 2008, 03:49 PM

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The volume control is served by using a 20K,50K even 100K potentiometer.
I use a dedicated hi-fi preamp! tongue.gif

Yes, an audio mixer should be able to feed the T-Amp. My only concerned will be quality of output from the mixer.

As good as $10,000 amps? Are you sure? hmm.gif

QUOTE(zzzxtreme @ Aug 19 2008, 03:20 PM)
hi jazzy

on ebay, i could buy a t-amp for about USD$30, but has no volume control. So i'm quite confused. do i need to use pre-amp as volume control?

reviewers says T2024 amps sounds as good as $10,000 amps, so I think $300-$400 is decent price kua.....


Added on August 19, 2008, 3:27 pmOh, if i get those t-amps without volume control, i can just hook up with a audio mixer ?

(like those 4 channel mixers with sliders)
*
zzzxtreme
post Aug 19 2008, 04:03 PM

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that's what audiophile reviewers said about the USD$30 sonicimpact t-amp

so jazzy, a preamp will amplify audio source ? yours have a volumne knob?

i dunno what's a potentiometer and wish not to do any soldering. i'm a coward sad.gif
jazzy939
post Aug 19 2008, 04:34 PM

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a preamp is a voltage amplifier.
a potentiometer in this case will act as a 'volume' control, controlling the amount of signal/current coming into the T-Amp. You do the same with your four channel mixer too! biggrin.gif

My volume control is on my pre-amp. It's a commercial pre-amp. Any pre-amp will do.

There will be some minor soldering required if you're using a potentiometer.
Even more if you want to house the T-Amp and then the hardware connections to the speakers terminal, RCA inputs, power supply connections etc tongue.gif

Easy way out is to buy ready made.. wink.gif

Soldering skills can be learned laugh.gif

QUOTE(zzzxtreme @ Aug 19 2008, 04:03 PM)
that's what audiophile reviewers said about the USD$30 sonicimpact t-amp

so jazzy, a preamp will amplify audio source ? yours have a volumne knob?

i dunno what's a potentiometer and wish not to do any soldering. i'm a coward sad.gif
*
TSxtorm
post Aug 19 2008, 05:43 PM

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QUOTE(wui223 @ Aug 19 2008, 10:03 AM)
Quite tempting, i been looking for the T-amp chip for long time. gonna hold my desire first, need to save up some money before getting crazy into DIYing again.

Jazzy939: inductance meter is not cheap toy, if u consider china brand is different issue. but why not consider getting a digital scope?
*
rm55 is complete unit, get a 1amp adapter you are ready to go...tongue.gif but no you wont stop there once you know every little thing makes a different! rclxms.gif

QUOTE(ongbs @ Aug 19 2008, 11:04 AM)
bro ah....not many ppl here got their t-amp kits on hand....that's why most of the time we are running "3 men show" tongue.gif
you faster sell more amp then here will look like "share market" liau  laugh.gif
*
more shra market coming...hahaha

QUOTE(jazzy939 @ Aug 19 2008, 02:29 PM)
bro wui223,
the inductance meter would be a whole lot cheaper than the digital scope, yes? tongue.gif

the T-Amp is an almost ready product. Just plug(PSU/battery,input and speakers) and play..  laugh.gif

Found this LC meter kit... interesting..  drool.gif USD59.95 +12 shpg.
*
wah tht cool, accurate ah? shocking.gif

QUOTE(zzzxtreme @ Aug 19 2008, 02:32 PM)
hey modder, u build one, then i pay you double the cost lah can?
order from internet would costs me almost $500.
*
bro serious? rm500 i can build you a nice 4 channel with upgrade edi biggrin.gif

QUOTE(Y.C. @ Aug 19 2008, 03:10 PM)
While waiting for my T-amp to arrive, I worked on the casing for it - a Rosewood jewellery box box measuring 8" x 5". I manually drilled some holes to fit in the speaker binding posts and RCA connectors and all this without proper tools, just using screw drivers of various sizes. I Would need another hole to fit in the DC current connector at one of the corner on the same side as these holes.

Attached Image
*
wow thts nice...where did you get those speaker terminal? how much are they per pair?
jazzy939
post Aug 19 2008, 06:10 PM

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xtorm,
I found a better unit online.
NOT DIY, complete unit. biggrin.gif
However, NOT in the rush yet.. the air-core inductor will be the last upgrade due to test equipment investment. wink.gif

TSxtorm
post Aug 19 2008, 06:13 PM

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my father was winding some coil himself...

or was it transformer, hmm duno, mayb he got 1 hidding some where..hahha
Y.C.
post Aug 19 2008, 06:50 PM

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jazzy,

Thanks for the compliment. I actually got inspiration to house my T-amp in a wooden jewellery box from diyparadise website under the "Honey I bought you a jewellery box" series. I thought if the volume pot, toggle on-off switch, led light and all connectors are fitted properly with holes drilled carefully and meticulously, the finished product will look cool and unassuming amongst my stacks of books and magazines instead of housing it in a high-priced metal box. And it is very inexpensive considering I only paid RM35 for the solid Rosewood box with beautiful floral carvings.

You are quite right, waiting for the arrival of my T-amp now is more unbearable. I guess I need to proceed at a slower pace.


zzzxtreme,

The cheapest T-amp completely built up is a Zero-Channel T-amp from Hong Kong, at US$49.98 or RM170 thereabout with shipping costs included. See link here: T-amp It is without a volume control and purely a power amp, so you will need either an active or passive pre-amplifier to go along with it. A passive pre-amp does not boost up signal of the power amp and is basically a 10k ohm / 20k ohm / 50k ohm / 100k ohm resistor with variable resistance with you turning the volume control.

There are many rave reviews on T-amps out there but do treat them only as a guide instead of absolute truth. I would think the sonics of T-amp would easily surpass many entry level amps from NAD, Cambridge Audio, Marantz and the likes but amps costing $10k? I seriously have my doubts because if really so, many amp makers would be out of business by now as everybody would be rushing to buy T-amps. It probably could but you will need to engage in > 90dB sensitive loudspeakers (horn-typed, line-transmission, crossover-less full range drivers, ...), battery powered T-amp, matching input impedance of T-amp with output impendance of cd player and other sources and so forth.... Question is, are you willing to go all the way?

And as jazzy has put it, when you buy a ready built T-amp, half the literal fun of listening, testing and tweaking the sound to suit your taste will be taken away from you and what you are getting is only the other half - the finished product. It is actually about the journey (work involved) too rather than the destination (finished T-amp) alone.


xtorm,

The WBT style connectors are at RM33 per pair, from internet when I picked up other items earlier on.




This post has been edited by Y.C.: Aug 20 2008, 02:07 AM
gabanyayaya
post Aug 19 2008, 07:40 PM

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OMG....there's a Tripath groupie building its territory here........


guys...you think you can make a homemade toroidal tranny here...???? hmm.gif
mysghooi
post Aug 19 2008, 09:23 PM

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Hi, yesterday I also get the last 2 pairs of WBT style connectors in the electronic shop same as the picture show by Y.C. it cost me RM12.60 per pair.
TSxtorm
post Aug 19 2008, 10:17 PM

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wow mysghooi you bought it at jalan pasar? cheap man!! my supplier got those, but when it reach here its edi rm20 er pair!

12.60 per pair is kinda nice!
ongbs
post Aug 19 2008, 10:34 PM

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QUOTE(xtorm @ Aug 19 2008, 10:17 PM)
wow mysghooi you bought it at jalan pasar? cheap man!! my supplier got those, but when it reach here its edi rm20 er pair!

12.60 per pair is kinda nice!
*
I only manage to find those plastic knob type in Ipoh (like xtorm one in 1st page) sad.gif
jazzy939
post Aug 20 2008, 07:55 AM

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gabanyayaya,
It's too much effort to make one ler..
I even try coaxing my tranny manufacturer to make one for me but he said too much investment for a low demand item.. ohmy.gif mad.gif

My other online source would be rsmalaysia.. the price will definitely set you back.. tongue.gif

QUOTE(gabanyayaya @ Aug 19 2008, 07:40 PM)
OMG....there's a Tripath groupie building its territory here........
guys...you think you can make a homemade toroidal tranny here...????   hmm.gif
*
This post has been edited by jazzy939: Aug 20 2008, 08:24 AM
jazzy939
post Aug 20 2008, 08:23 AM

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That price is a STEAL! thumbup.gif
Last two pairs you say? mad.gif I am going hunting in JP this week, will buy ALL available pairs.. hahaha laugh.gif

I would normally use this:

user posted image

This is also quite nice on the bantam kit:

user posted image

the dualbinding is not bad too....

user posted image

I would opt for these too! .. tongue.gif

user posted image

choices.. choices.. doh.gif


QUOTE(mysghooi @ Aug 19 2008, 09:23 PM)
Hi, yesterday I also get the last 2 pairs of WBT style connectors in the electronic shop same as the picture show by Y.C. it cost me RM12.60 per pair.
*

Added on August 20, 2008, 8:32 amY.C.,
You're most welcome! You reminded me of a guy you built his gainclone using a square cooking pan:

user posted image

Very original! thumbup.gif Maybe this might trigger something to the others! brows.gif

On my side I already have the casing, but keeping it under wrap and out of sight! Do not wanna rush until I am done with the necessary 'testing' laugh.gif

Say, when will the second batch coming in? I bought another two.. wink.gif



QUOTE(Y.C. @ Aug 19 2008, 06:50 PM)
jazzy,

Thanks for the compliment. I actually got inspiration to house my T-amp in a wooden jewellery box from diyparadise website under the "Honey I bought you a jewellery box" series. I thought if the volume pot, toggle on-off switch, led light and all connectors are fitted properly with holes drilled carefully and meticulously, the finished product will look cool and unassuming amongst my stacks of books and magazines instead of housing it in a high-priced metal box. And it is very inexpensive considering I only paid RM35 for the solid Rosewood box with beautiful floral carvings.

You are quite right, waiting for the arrival of my T-amp now is more unbearable. I guess I need to proceed at a slower pace.
zzzxtreme,

..snip..
*
This post has been edited by jazzy939: Aug 20 2008, 12:31 PM
mysghooi
post Aug 20 2008, 08:41 AM

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Hi ong you sure cannot get the binding post in Ipoh ah? I get it in Ipoh leh. But now I already buy the last two pair from that shop. May be we can share share the experience when I get my T-amp.


Added on August 20, 2008, 8:42 amHi sifu here. which type of wire is recommended to build up this T-amp. The 12V and speaker wire?

This post has been edited by mysghooi: Aug 20 2008, 08:42 AM
ongbs
post Aug 20 2008, 09:51 AM

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QUOTE(mysghooi @ Aug 20 2008, 08:41 AM)
Hi ong you sure cannot get the binding post in Ipoh ah? I get it in Ipoh leh. But now I already buy the last two pair from that shop. May be we can share share the experience when I get my T-amp.


Added on August 20, 2008, 8:42 amHi sifu here. which type of wire is recommended to build up this T-amp. The 12V and speaker wire?
*
Walau, no wonder I can't find, you sapu all doh.gif tongue.gif
Sure, pm me when you get your T-Amp brows.gif


This post has been edited by ongbs: Aug 20 2008, 09:53 AM

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