**very important that you guys dont mess up +VE and -VE terminal on the power supply, it will burn the chip!**

check out post no 3 for modding details, and pdf file to be donwloaded

t-amp? what izit?
its a type of amp produce by tripath, basically a much refine class-d amp.
there is ta2020, ta2024, ta2022, the 1 i brought in is ta2024, bang per buck you cant beat it
some good reading abt the ta2024
sonic impact T-amp which make this chip really famous!
http://www.tnt-audio.com/ampli/t-amp_e.html
http://www.6moons.com/audioreviews/sonicimpact/t.html
http://forum.ecoustics.com/bbs/messages/1/193312.html
________________________________________________________________________________________________

since most of you guys that ordered will be getitng thier parts by today, let me start off with some of my built 1st
doing it very slowy as this is my 1st built, altho simple but not femiliar with it.

i got 2 boards with me, 1 i will mod as i build the other completely stock wana compare the difference, altho im planing to run active setup with 4 channel.

stuff you need to start for those new to DIY

for 1 board you need
solder and lead ofcos
multimeter if available, else be very carefull with what you are doinglor...
some cable. cat 5e or cat6 are easily available and easy to work with
a housing that you like
on/off switch x1
power supply terminal x1 set (male and female)
rca female x 2 (1 black 1 red)
speaker terminal x 4 (2 black 2 red)
a stereo volume port

some parts are not shown here


speaker terminal.
pretty straight forward, solder 1 wire to each terminal pin, red goes to +ve and black goes to -ve


RCA female
the middle pin will be the signal, side pin for ground.



so which is which?
middle pin is ground
right pin is the right pair
left pin is the left pair
left and right channel will share the same ground


switch
when you buy a switch measure for connectivity when you off and on it.
for mine its the middle and top pin


volume
taken from ESP, well im not too sure how it works either , didnt check it out cos im not using it, so here's wat i got form ESP

hmm...same for 2 pot? sifu please advice so i can update, newbie here....



cabling
from RCA female to board input im using rs 485 data cable,
i gounded the shiled (connect it directly to 12v -ve)

the rs 485 cable

other then that it is cat6 for all the power supply wiring, and cat5e braided for speaker terminal, wanted cat6 but i dont have much as you can see i remove all the terminal and solder directly.

capacitor power supply are cheapo jalan pasar stuff, 2x 10000uf and farnell 3 x 3,300uf.
in the middle you can see a 40amp relay use in car. i believe those transfer voltage better then the switch alone.

Attached bellow is the evaluation board by tripath, our board follows tht design minus the input coil, most ta2024 amp follow this design

This post has been edited by xtorm: Oct 2 2008, 12:26 AM


Attached File(s)
 ta2024evaluation.pdf ( 630.75k ) Number of downloads: 372

i have complete building mine with input voltage cap, seems like the unit is working hotter then before...hm...

1 of the board is modded with M-Cap 2.2uf input cap, elna for audio 1000uf on the power supply rail to the chip, the sound is quieter and not as ear piercing compare to stock unit. it sounded softer tho, should be bcos it is much quieter now. im running my mids free air, btw, the tweeter frequency seem like its been pull down. too tired to set it up in my car edi, only gona do it tomorrow, i got a bad headache today and took MC, ended up doing the amp

how should i measure the inductor impedance? just by using the multimeter? im measuring 1.3-1.5ohm for those inductor, will a lower impedance inductor improve the sound? it should right? found some nice 0.07ohm unit in farnell but ferite core tho...no air core to be found

more listening, hmm some ape file sounded really nice while others crap, this amp really do relly alot on the source, garbage in garbage out

back of my amp


internal


left with tank cap and input cap modded, right stock.


initially i tot the box is so damn big, luckily im wrong, lots fo space for me to play with.


sorry abt the quality of the image, camera phone arent good with indoor lighting

This post has been edited by xtorm: Aug 16 2008, 08:19 PM


Attached File(s)
 ta2024evaluation.pdf ( 630.75k ) Number of downloads: 165

the modding guide, sorry if the write up is not good enough, i tried

BEGINER STAGE
-the easiest modding and makes the most difference will be the input capacitors, those thing covered in black
get the best capacitor you can afford here, higher value will enhance the bass and roll off the highs, 2.2uf and 3.3uf are recomended here, non polarize.

-change the supply capacitor, those 2 small caps in the middle just beside ta2024 chip, higher value will enhance the charity and bass, low esr caps are recomended here, panasonic FM seems to fit this job well, 3300uf 16v will be enough, change both of them ofcause...
here a review from 1 of the guru here on power supply cap


these mod will probably be enough for some, but i bet most will not stop here as once you start modding it you dont wanto stop, the diferences are just amazing


ADVANCE
indetifying the component for input stage (image credit to jazzy939)



from here please refer post 1214 by jazzy939 for pictures, i cant seem to save the pics he posted
http://forum.lowyat.net/index.php?showtopi...post&p=19884882 <--direct link

-input resistor and gain resistor, smd component are never known for sounding good, the input resistor on the board are probably 5% tolerance, i measure 19.6xk to 19.8xk on them, changing to 1% metal film or better will improve the sound, espcially imaging.

-as you can see some biascap and others being change as well in the picture, not sure how much they effect the sound, jazzy939 did this mod in 1 shot and are quite surprise by it

-bypass cap for power supply, just beside the power supply cap, c6 and c7. good power supply make a noticeably difference in t-amp

-soldering copper wire directly from 12v terminal to chip, again, a good power supply is important in any amp, since the original root is quite thin in size, soldering 2 copper wire to the ta2024 pin will let the chip have plenty of power to work with, espcially with bigger panasonic FM in. sorry for the lousy pic, it is solder to pin 25,26,29 and 30



-output filter capacitors, c22, c25, c27, c28 (sorry no pictures yet), some say these are as good as changing the input caps, polyester 5% or better are recomended here.

-output filter coil, those 4 black thing, ferite coil gives dynamic and vivid signature to the t-amp, while aircore gives smooth and relax feels to it, up to the listener. other then that shielding the coil will make the amp sounding clean, haven try it tho, but good feedback from those who has done it.

bellow files belong to bro jazzy939, i upload it here for the convenient of others..

This post has been edited by xtorm: Sep 28 2008, 07:06 PM


Attached File(s)
 TA2024_mods_draft_STAGE1.pdf ( 1.35mb ) Number of downloads: 457
 TA2024_mods_draft_STAGE2.pdf ( 1.4mb ) Number of downloads: 376

haha cheapo stufflor, im not using it anyway i boguht 20k, should get 50k or so...

hmm i duno how to diy the power supply, im pretty much a newbielah...hehe

meanwell 8.5amp smps is selling for under rm100ler...

all my suff jalan pasar...haha

wan exotic 1 goto go octave

This post has been edited by xtorm: Aug 11 2008, 02:59 PM

btw you guys should have gotten the amp right?

btw for those who like open and lively sound mayb should lower value input cap, just a theory tho, mayb ill try it with the other amp

my god that volume pot is nice! TA2022, other then bass some say there is not much different? how true is tht since you have both.

i got 1 of those resistor soldering type as well...haha what you call them?

---

Added on August 11, 2008, 11:52 pmjazzy and bsod, waiting to see you guys nice casing, mine is pretty plain and simple, im more concern abt the sound

This post has been edited by xtorm: Aug 11 2008, 11:52 PM

haha good good..

litsten to it before you mod the input cap, you will be very happy with the mod

btw the packaging i send nice ah?

This post has been edited by xtorm: Aug 12 2008, 10:19 AM

guest tht is aspected from a more powerfull amp

haha eh tell lah how does it compare to your old amp...

just install in my car, my impression is wow...

the moded amp is runing my mids, tight bass, kinda suprise they are so low power

the tweeter also sweet and the soundstage...yum yum...

hm my U-dimension amp is faulty, gona cost alot to repair it, gona try my USAmp later this week to compare, tht amp is 4x25w

yea, pretty much, mayb just comparable to thier low end products, anywa gona go my friend house for a comparison when im free, gona cook them 1st

don forget ampzilla

where to get nice metal casing other then car amp

ill come up with a list of mod to be done during weekend soldering iron spoiled edilah

---

Added on August 13, 2008, 1:21 pmpm rply hope to hear from you soon

This post has been edited by xtorm: Aug 13 2008, 01:21 PM

haha im trying to forget tht im actually modding a very cheap amp with expensive parts hahaha

the board is cheap but the sound is not, and those mods bring good outcome! this board is so simple tht most of the component count

yep was planing to do tht, but my antec 480 when into anoter pc edi

get those with active pfc, put in a variable resistor to tune the voltage to 13v!!

ongbs, you very shioklah....me wan listen to proper setup also canotler, can only listen in car which is noisy like hell, goto put back my firewall sound insulation edi, also my floor carpet

then i didnt go wat for i send youlah send my ears also ah



im loving the sound in my car, it is much more compare to my old setup which cost quite abit for the amp, but tht was in an old iswara which the whole acousitc is very different compare to this car.

the soundstage is good, there is depth, and it is wide, position is kinda good and the source is my handphone, hahaha, so no time aligment.

im happy, but it really is garbage in garbage out, some mp3 file sounded nice while others not really good

the highs is abit eggy now, changing the input cap should solve tht easily.

my unit is less then few hours run, still far away from the recomended 100hours burn in, it will take me a month or 2 to get tht figure if its in my car

This post has been edited by xtorm: Aug 14 2008, 09:55 AM

wah how much u got those!!!

must be damn big cos mine 50v 1000uf edi damn big

oh man you review is supperb!!!

yea the bass is tight but it cant go low, probably bcos of its low wattage, 2.2uf cap is recomended as input cap, put in the best you can afford, tht make the most different, and be surprise as everything get wider and better also some good low esr cap at the power rail, im ordering 3300uf panasonic fm, gona make it 6600uf each side, the output filter (the coil and a cap) also make as much different as the input cap, but inductor is hard to source, make some good 1 for me jazzy? i dont have inductance meter

btw out of the box the sound will be abit edgy in the high, but it depends on speaker too..input cap solve tht problem easily

i told my friend tht this fella beats my old setup in my car he totally dont believe it, i was using a 2k++ amp b4 with same electronic crossover and speaker, the only different is the car, i dont think the car alone make so much different to the sound. and i was using blaupunkt 2nd to top of the line HU vs my current mp3 player tro handphone

thts my initial tot, and i haven even mod my tweeter amp yet, gona compare it with my cheaper but equally good USAmp (comparing to my rm2k++ amp) tis weekend if i can resist my self spending the time moding the amp

---

Added on August 15, 2008, 9:48 ambro they are coming

2nd shipment coming, doing the tt today

This post has been edited by xtorm: Aug 15 2008, 09:48 AM

yea more is beter for power rail, those 220uf is recomended to change to better unit same value, and leave the 6600uf away nvrmind cos its kinda big

the inductors are 10uh, low resistance and low capacitance will be great, eh you need 4ler for each board

smps sounded the best from what i see online

mine is runing in my car fine! sounding very good too

voltage wise..

13.8 for more power!! hahaha

and put some metal around those inductor and ground it, shielding make quite a difference i heard, gona do tht tomolo

This post has been edited by xtorm: Aug 15 2008, 11:28 AM

yea when i read the article i was like...hmm wtf, for real or not?
yes is pretty fun to play with TA10.1 basically same with our board, same evealuation board...

hopefully the item reach within 10days, previously around 8 days or so only, my suplier mention he might send it on monday. sending tomolo the stuff will be left in the office till monday, which serve no point

yea probably bcos of the wattage, but it got kickmah...no meh, no deep basslah...
haha those neutrik fake ah
saw some mondter RCA b4, the design totally look alike

ermmm, what is KISS damn those trans are sexy, ta2024? i think its a 2022 right?

cheaper and better then this..you goto kill me then, rm55 each ler

yesterday my friend try my 9 watter, then water come out from his mouth

This post has been edited by xtorm: Aug 16 2008, 12:19 PM

wow...

you should take out those original caps, 10uf is kinda too much tho