This seems old as a 20K ohm volume pot SHOULD sound louder than a 50K ohm unit; bearing in mind that P = I²R and accordingly I = √P/R. If your 20K ohm volume pot is mounted separately in another box, remember to use interconnects of short length with low capacitance value.

BTW, I will try to reschedule our meeting again sometime this week before we break for CNY holidays; my apology for failure to meet up last week.

oh yea....whats wrong with my head...hahaha, must be the lousy volume pot, it suddenly become loud when it reach 3 o'clock then all quiet again at max....wiring issue?

nice explanation...
it is in the same box, with wire no more then 10cm... or did i do something wrong on the wiring... with the knob facing up, middle is ground, right is from the input, left is to the t-amp...correct ah?

no problem bro, just come any time u free. if im going site on my own i might pay you a visit instead.



hmm just check my old post
i think the wiring is wrong.....
1st is ground, 2nd is to the amp, 3rd is from the input.


This post has been edited by xtorm: Jan 19 2009, 12:17 PM


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With the rotary knob pointing directly at us and the soldering pins pointing up, I’ve always adopted:
Left for input (from the RCA), Middle for output (to T-amp board) and Right for Earthing. You determine front row pins for Right or Left channel yourself.

haha ok got it....stupid me. gona redo it now and put in the infamous Y.C. cap and see how it goes...

taking off day today...haha, my car cant start....

Car can't start. Blessing in disguise?

hahaha why is thtlah bro

send for repair edi, waiting for a re-con starter to arrive...

No need to go to work but could get to enjoy listening to music through the T-amp mah!

haha true

the volume is working fine now

3.3uf is sweat too, the y.c. cap from jalan pasar not badmah..better then original.

Wishing all T-ampers "Happy Chinese New Year" in advance, and

instead of Gong Xi Fa Cai 恭喜发财, let us just aim for Wan Shi Ru Yi 万事如意.

Y.C.,
Is that 'Good Luck' or 'All The Best'?

Jazzy,
Direct translation of Wan Shi Ru Yi is "Smoothness in Ten Thousand Matters", hence I'd pick "All the Best" to be the better meaning.
And, all the best to you too. Have some happy holidays ahead.

kong xi fa cai to you too Y.C. and all t-amp fans....altho not much posting here

kong xi fa cai direct translation will be congratulation be rich....hahahaha

something like wishing you good fortune ahead

Since not much posting, i made one before CNY. Happy CNY to all t-amp modders.
Here is the most recent mod for my friend t-amp board. Only input cap (3.3uf+0.1uf) and power cap (220UF) replaced. No chance to audit it, as collection is immediate after mod.




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hi guys

GONG XI FAT CHAI to all that celebrate it.. success always!!

i am new to this forum. just got the pcb for arjen. just wondering if you guys have the schematic? smd desoldering and soldering is killing me. just wanna try to find alternative for soldering thx. with this pcb i would try to run a full range with 85db sensitivity. finger cross that it will be able to drive it lol...

heard you guys has success with car audio setup. this thing come to mind as well. as it draw same voltage as the car battery. just confirmation. this pcb need 0v and 12vdc right?

can we use -6vdc for the (ground) and +6vdc for the (+12v)?

anyway my car speaker is boston pro acoustic 6.53 with spec below: can this lil t-amp drive it?

http://www.sonicelectronix.com/item_10210_...3C-sup%3E-.html

Speaker Size 6-1/2"
Design 3-way
Tweeter Design Dome
Tweeter Composition Aluminum
Woofer Composition Copolymer
Woofer Surround Butyl Rubber
Peak Power Handling 500 watts
RMS Power Handling 250 watts
Sensitivity 90 dB
Frequency Response 50 - 22000 Hz
Impedance (per voice coil) 3 ohms
Top Mount Depth 2-3/8"
Bottom-mount depth N/A
Cutout Dimensions 5"
3 ohm impedance...

This post has been edited by milen007: Jan 29 2009, 02:38 PM

-6vdc? from the board?

ops maybe i should be clearer. i can ran with psu that has negative and positive regulated supply?

so -6vdc and +6vdc. thx

This post has been edited by milen007: Jan 29 2009, 02:40 PM

oh yeah.. should work!

help!!

i connect the stock module. nothing being change. the dc at the speaker terminals are 60mv and 17mv. is this safe to connect the speaker?

the unit it only power up with 12vdc and has not been connected to anything..

how to lower the dc? thx in adv

thats low.. my dc offsets are in the 100++ mV

KWW, moddin it fro your friend? are they loving it yet

milen007 are you from malaysia? those boston are 3ohm? hmm you can try, the sensitivity is good enough