IF I can get that casing to be manufactured here, how much would you guys be willing to pay for it?
heyy.. don't be too observant lah.. I normally sleep around 2 and wide awake by 6.. has been routine for so many years..

car amp.. lets wait until we know whats the value of 'less'

power hungry guys may want to move to ta2022..

Basically there are two types, linear and switched mode. Do a 'google', there's a wealth of information with regards to these two in terms of design and applications.

This is an extract from wikipedia:

"Linear power supply

An AC powered linear power supply usually uses a transformer to convert the voltage from the wall outlet (mains) to a different, usually a lower voltage. If it is used to produce DC, a rectifier is used. A capacitor is used to smooth the pulsating current from the rectifier."

In other words, it's the normal AC to DC converter. Is this clear enough for you?



This post has been edited by jazzy939: Aug 18 2008, 12:53 PM

For all intents and purposes,if you take the trouble to search and read the applicable links ( which was provided in some of the postings in this thread), you can draw your own conclusion whether it is 'audiophile' or not. My review in the earlier postings, included.
BTW, What is "car power sound"? Don't under estimate some of the current car audio systems as they are really in the audiophile league.

In the end of the day, its your money and your ears. A basic RM55 amp against a RM5K amp. You decide!
As you can see it is not only the cost factor that is involved here, its the SOUND QUALITY, hence the modding and upgrade activities.

This post has been edited by jazzy939: Aug 18 2008, 12:51 PM

xtorm,
I believe so.. ie you're the one to use the TA2024 in the car!
Who would believe a puny little amp would be capable of doing what big amps sometime fail to do
BTW, has Tripath gone out of business?

Well put najmods. And thats about it gabanyayaya
Actually by changing the values of the input caps, you're changing the 'filter network' either to become low pass filter, also called high cut/treble cut filter OR high pass filter. In this case its a low pass filter.
A low-pass filter is a filter that passes low-frequency signals but attenuates (reduces the amplitude of) signals with frequencies higher than the cutoff frequency.
Read here for more info: low pass filters

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Added on August 19, 2008, 8:09 amIt is sad and disheartening to know such a news.
Is this the end of Class D/Class T?
Conspiracy from other manufacturers?

Will other manufacturer able to license the technology for the manufacturing of such chips?

If not, we're dealing with a technology thats going to be obsolete.. Might as well grab as much chips as possible

Chip amps will never be and sound the same again


This post has been edited by jazzy939: Aug 19 2008, 08:09 AM

Ya lor.. why so quiet nowadys?
You guys have to excuse me as on weekdays I have no access to internet at night due to my location, however during office hours is not a problem

Anyway, the toroid inductor I checked with farnell, they costs about RM5+ EACH. We need four that close to half the price of the T-Amp itself!
You guys wanna buy ready made?
I'm going to wound it myself! No big deal.. The cost may be half of that. Just that I don't have the time right now until weekends.. Let me do it first k. Then if anyone else wants it, I'll make more..

Now waiting for another pair to arrive..

after some reading about inductors(as usual)
the air core will be the 'ultimate upgrade'. I think it's gonna be 'huge'.. so i'll test out with the ferrite ring first if it is worthwhile.. as it is now.. I am satisfied and comfortable with what I heard.

now.. trying to either get an inductance meter, make or making an 'adaptor' to be used with my DMM..

full balance bi-amp.. sheesh.. don't tempt me!

bro wui223,
the inductance meter would be a whole lot cheaper than the digital scope, yes?

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

Found this LC meter kit... interesting.. USD59.95 +12 shpg.

This post has been edited by jazzy939: Aug 19 2008, 02:47 PM


Attached image(s)

Anyone interested to make a 'quick' buck here?
zzzxtreme, you're taking the fun out of this la..
Whats your budget then?

Y.C.
You certainly don't waste time ya!
I like your approach! Simplicity and resourceful!
Now it makes waiting for your T-Amp more unbearable..

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

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?

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!

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

Easy way out is to buy ready made..

Soldering skills can be learned

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

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..

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

This post has been edited by jazzy939: Aug 20 2008, 08:24 AM

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

I would normally use this:



This is also quite nice on the bantam kit:



the dualbinding is not bad too....



I would opt for these too! ..



choices.. choices..

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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:



Very original! Maybe this might trigger something to the others!

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'

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



This post has been edited by jazzy939: Aug 20 2008, 12:31 PM

mysghooi,
I am using a 3A power supply to feed the T-Amp, so the cable that I am using is rated at 5A.
Speaker cables, I am using my existing QED79 speaker cable and a set of TRANSPARENT speaker cables.
Do not sacrifice the quality of the speaker cables here. It would help in tapping all the T-Amp capabilities!

Found this MONO class D module over the internet with the following spec.:

300W@8Ω

THD+N: 0.05%

SNR: 100dB

BW: 20Hz~45kHz@10W

η：92%@8Ω；88%@4Ω

Over load protect

Offset adjustable

Soft start

Ada orang minat?

Minimum power for a stereo module is 200W@8Ω!

No price was quoted/given...




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Agreed. ie Tripath used the existing so called Class D and make it 'better'

If it's 'cheap' enough, I might give it a shot, ie the non-Tripath class D amplifier..

yes. the 2024 is more 'audiophile' than 2020, if that really mean anything..

xtorm, anything new on your side?

gabanyayaya,
I am currently in contact with someone from the company trying to get a price quotation. They apparently do not have a pricelist. All prices are subject to curent cost and the quantity at the time of order/manufacture. They however entertain a minimum order of one, which is a good thing!

It does NOT use Tripath chip but use discretes based on Class D amplification system, which is what Tripath chip is based on. If you need to know the basics of Class D do a 'google', there's a wealth of information about it, good and bad! I have done the reading part! It's time to play!

Wow! 20uF poly! What would it be used for? No lah.. haven't a clue about the price..
Whats the working voltage like for the poly? A quick check with farnell, with minimum WV of 250VDC, the cheapest is RM39.66!

ongbs,
yes. one of the application for this Class D is as a sub woofer amplifier, pro amplifier and mixer amplifier.
Let me get an initial price quote. If its low enough for us to 'play play' may I'll do a bulk, yes?