Nicely done..       

A few comments...

1. Why didn't u use the same DC plug for both AC Adapter & 9V battery.. and save some components ( I guess u didn't buy an extra DC jack for the 9V snap on )

2. Use single-core wires for components on the prefboard, easier to solder ( I guess you didn't have single-core wires during yr constructions stage )

3. I notice the wires leading to audio in and out is different sizes joint by heat shrink wrap... this is not good for impedance matching, just use a same type of wires across... from a thick wires to thinner wires , the signal might change a bit..

How the sound quality compared to without the amp ?

Had some problems with my Cmoy on a stripboard , so I decided to make another one using a breadboard and it worked.. Then, I soldered all the components on a new stripboard and still had problems  . After touching the circuit, shaking up and down, moving here and there, and brushed the flux off with a little bit of water; it finally worked.  I abandoned the TLE2426 as it was causing me problems too (bad soldering) and used the resistor divider instead (470uF). This Cmoy uses a TLE2072 op-amp, 0.15uF input caps, 2kΩ resistors (gain 6), 2x10kΩ Pot (each controlling one channel). My Cmoy can be powered either by battery or AC-DC adapter (controlled by switch). The AC-DC jack on the Cmoy is connected to the resistor divider through a Voltage Regulator which throws 12V as the output while the battery jack is connected straight to the resistor divider. Enjoy the photos... 

Messy wiring ...Any noise???

I like my wires    No one is gonna open and see it when listening to it haha  Actually all my problems were noises.. I manage to get rid of the noise on my final product.. I only have a slight noise (only at high volume, which i don't really reach that high) when it is powered by the ac-dc adapter.. The battery power is silent 

That means your AC/DC adapter is not regulated

Ooo.. So that's what cause the noise at high volume.. Does the voltage regulator that i built reduce the noise (all i know is it makes sure it outputs 12V)?

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Added on November 15, 2011, 11:45 pmEh bro, i just noticed something. When using AC/DC Adapter, and my source is my laptop, the noise is there when set to above listening volume. But when my source is my phone, i only hear the noise when volume is all the way up (max) on the amp. When my source is my ipod or no source, max volume also no noise  .. I'm guessing my power is not causing the noise now, but it's my source..

I'm still very happy with it as this is my first project  .. About sound quality, i don't really know how to describe  .. I think the bass and soundstage are improved .. 

I like my wires    No one is gonna open and see it when listening to it haha  Actually all my problems were noises.. I manage to get rid of the noise on my final product.. I only have a slight noise (only at high volume, which i don't really reach that high) when it is powered by the ac-dc adapter.. The battery power is silent 

Asking for directions.

Is there any bus service connecting KLCC to Jalan Pasar (or vice versa)?

the nearest LRT station is Pudu. it's 2 minute walk from there.

Metrobus might go there but I'm not sure.

for such battery 7.2V you can try....
47/100uf x5
470/1000uf x3
0.22/1uf x2

for such battery 7.2V you can try....
47/100uf x5
470/1000uf x3
0.22/1uf x2

Hi everyone. I want to ask, can anyone from here replace the loose audio jacks of my iBasso T3D? It's very loose. having hard time with headphones some times. 

loose but does it affect sound?

show me pics.