I ask for price...and how much for LME49720? Can you test the opamp output DC offset using digital multimeter? because i read from head-fi who shorted the decoupling cap detected some DC offset from opamp output terminal....

why you removed it? you are not to use line-In anymore?

I've told you before, I take all those caps from dead soundcard or motherboard, I don't buy it. How to measure DC offset?

I'm not bothered with RMAA result anymore. that is why I don't solder them

Edit: I resolder them back just to test RMAA, here's the result

just test the left and right channel refer to ground without music playback...with coupling cap, the value should be very near to 0V....

I got negative values, -0.17V to be exact. I don't know what that means though

Anyone here knows what is the pinout for 3.5mm female gold jack on this X-Fi? I want to use RCA jack as primary out

how about real channel ST4558 DC offset? urgent men...

Absolute zero, no reading at all (maybe because I disable rear channel I think), why do you ask?

EDIT: I checked it again with 5.1 enabled, it registered 0.002V

Oops I see you are talking of the power circuit not the input circuit, Shorting these would cause the 5 volt regulator to fail & ruin your card The caps that I shorted are in the signal path from the DAC to the opamp to both the positive & negative inputs these have less than +3 volt on them which gets cancelled in the opamp. This is true D.C. coupling & there is a small D.C. offset left over. Most amps are not D.C. coupled so this is not much of an issue but be aware some high end amps ARE D.C. COUPLED as well & may have NO D.C. OFFSET PROTECTION. 30 millivolts times 16 (a typical gain for a power amp = .48 volts). THIS IS enough to cause concern about OVERHEATING such an amp. Capitals are for emphasis.

I can get away with this even though all my amps are D.C. coupled because my preamp has D.C. protection built in by using a D.C. servo so the excess D.C. is cancelled in the preamp.

wah 1 week no come in (curi view not owner) guru najmod edi bought XM & took away its virginity  

coolkwc you wanna do it?   I have xcess lm4562 & lme49720 (1 each) in da house & some panasonic FM caps... I sell you       currently test-listening to my very 1st customer's XM with lm4562 & some caps swapped anggap burn in

Be aware that the card puts out about 30millivolt D.C. with stock op amp at output with the coupling caps shorted. This may not seem like a lot & in most cases its not but if you have D.C. coupled amps upstream without D.C. offset compensation you can cause the amp to over heat & possably damage you amp & speakers.

You will also notice some popping sounds as the computer is booting up & shutting down.

How much you want to let go your LM4562 + LME49720?

you are now facing a dangerous to overheat your amplifier...
The modder who using LM4562 and shorted cap only register 10-30mV, but you get almost 170mV, too high, maybe you put back the shorted cap and measure again if you wish...

its minus 170mV, not +170 mV
EDIT:Furthermore I'm sure my Technics amplifier have DC offset protection

Actually the same...if you direct connecting your headphone/earphone onto it, your headphone/earphone diaphragm will displace from it original position depends on negative or positive DC offset...

I use 33uF tantalum caps on the 4 decoupling caps and measure the DC offset, its exactly 0.030V. Sound quality wise there is slight difference, no caps sound a bit better

Trodas said Tantalum cap is not suitable for this mod...

I wonder how's the SQ if i swap the 4 caps to Pana FM...

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