Concentrate on improving your vinyl TT passion may benefit you more lah!.

i replaced the stock JNC 470 uF to panasonic FM 470uF 25V...

not much improvement sounds to me...

anyone tried expensive boutique input caps yet? (Mundorf...Wonder Cap, Solen, Auri?)

Contrary to popular belief, caps take time to run in. I changed lots of china capacitors in my subwoofer to Panasonic FC's and the improvement wasn't immediate. Having said that, change to boutique caps is no guarantee of improvement. Its installing the right type of cap at the important part of the circuit that'll contribute to improvement.
BTW, those brand caps you mentioned are more suitable and beneficial for tube amplifiers...not T-amp.

This post has been edited by bsl555: Nov 28 2008, 01:12 AM

I'd agree fully with Bsl’s comment above.

I replaced the stock 220uF 25V caps on my 1st board with Panasonic FM 1000uF 16V ones. First impression is not much of difference lah and what a waste of money! How wrong I was as I discovered later the bass and its weight was way too much for my liking and it overpowered the "micro details". I subsequently replaced them with Panasonic 470uF 25V ones. Moral of story, real sonics could only be realised after a while, ie. after running in the caps.

On input caps, a change from stock caps to more decent ones like Vishay MKT1813 you're having would tell the diff almost immediately. Nevertheless, if you were to do a comparison with another unit with stock caps on board now, the diff is even more pronounced. Do spend the money saved from not buying boutique caps for a better vol pot for better transparency and musicality.

My second pot from JP fail again..1 channel is louder than the other unless I really crank up the volume that both will be balance. Now the T-Amp is left aside waiting for Alps pot to be in..

Apart from the two caps, what minor mods can be done to further improve the sound? Getting bigger resistors/caps to replace those SMD will make the T-Amp look ugly

Improve the sound? .. replacing to bigger sized resistors and caps is in practice, dirtying up the sound and increasing the distortion figures.

You're one unlucky bloke! You have my sympathy ler..
I have bought many pots from JP.. so far they're ok. Guess I am lucky
You gotta be careful where you buy stuffs in JP. My stuffs mostly from NIXIE. My next alternative choice would be MAPLIN. Now that your ALPS is on the way..

SMD replacement is no minor mod. Ugly or not, its not about looks, its about SQ. Its gonna be in a box/casing anyway. You worry about how your T-Amp looks?

I guess I'm not the only one having a bad luck in JP....now a defected pot also....haiyya....manya takut wo mau shopping in JP......

FYI, NIXIE/MAPLIN is not in JP.. It's on Jalan Landak!

Errr.. you can get unlucky on other components too..like other value resistors accidently mixed up with the actual values you want. Thats why I bring my own multimeter and magnifying glass. My eyesight ain't all that good nowadays.

Mixed up parts sometimes happen..
Never brought my own DMM, but if you ask for it, they will lend you one. One shop even offered the DMM if I want to use..

Normally those cheap passive components, I will buy X2! Just for spares.. and stock up.

So far I have been lucky..

Ah..its always normal proceedure for me to check properly before paying. I would hate going there just to get a replacement. BTW, almost every shop I've been would allow you the most inaccurate or malfunctioning meter for your checking. Cheh!. Bring my own and trust it!

ok, you don't trust them or their meters!
I'll make a note on that!

A Malaysian made mentality in business.......untung first customer later...

How to trust lah?. The meters (referring to analog ones) are so inaccurate or may not deflect to full scale (due to weak batteries). You go try and you tell me. Those meters are there perhaps for formality.

I both all these pots from Jln Landak. 3 pots from RE, only 1 works. 1 from Nixie and doesn't last..ALPS is here in Malaysia but not with me

I will not get any box so soon as I have another project (CD63) that need to finish up. Therefore look is quite important when the amp is still naked. I will be bring this amp to test with my client (also hifi kaki) setup in Penang next month and I sure don't want to scare him away with all those resistor sticking out On SQ, I had my friend tested Y.C. T-Amp many weeks ago (thanks Y.C.) and he finally got 1 for himself. He is a very satisfied man now that he find our Malaysian singer Nora much livelier.

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Added on November 28, 2008, 11:11 pmGabanyayaya, instead of multimeter, we should bring bro jazzy to buy parts from JP/JL(andak)
I think for my case, it is quite difficult to measure with an analog multimeter. 50K pot and if there is a slight few hundred ohm diff, analog multimeter might not be able to detect it. The only DMM I got is Rapport and I sure won't bring it there as it will make me look like meter reading man from TNB

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Added on November 28, 2008, 11:15 pmAs mentioned before, the quality is so much diff during my college days...I wouldn't mind paying extra if the quality is good. Hope Farnell was like last time where to stock the parts locally.

This post has been edited by cyl1000: Nov 28 2008, 11:15 PM

Do they really still use those analogue multimeter(sunwa)?
Ok, maybe tomorrow I'll give it a shot! What the heck, just for fun!

cyl1000 you don't know yet...!!!! jazzy is a tour guide to JP...just hop-in to his bus and he'll be showing you site seeing all shops which sells 'jewels' in JP

jazzy i hope the pot you bought for me is A-OK

gabanyayaya,
I have a bunch of pots in my spares box.. no need to buy any ler..
What value are you looking for? 50K? 100K?

100k...maybe....hope the quality for that last.....