paingod84

resistors dont as far as i know, but for metal caps (the black cylindrical one), yes it matters (but you can see the +ve & -ve on the cap itself). post a pic/link of the schematic so we know what you referring to..

oh, use a butter knife, or anything that has a flatter tip.. i think it needs even pressure all around the area you are trying to click out of position. press on it downwards, i.e in the direction to push the grille out. (not push it inwards towards the center to try and unclasp the hook, that doesn't work) hope i've explained clearly enough..

norseman, depends where you push it. some edges, i managed to do easily, some, i had trouble just like you. it's a matter of slightly adjusting and repositioning the knife to get exactly at a good point to push it out, it shouldnt need more than an ounce of strength to push it, it should just click nicely out of place.

i've done the kramer mod, it does improve clarity quite a fair bit. of course it doesn't scale up to a grado, but nevertheless, i've always enjoyed koss' performance, and i'm enjoying the sound much more now. "more/larger holes in center tend to increase treble, more towards the perimeter increases bass." i basically made 8 holes around the mid ring, and enlarged the central hole, (all as large as i could go and still maintain the structural integrity) did A/B comparison before n after with a ksc55, the mids sound much better, slightly better highs. (thinking of getting another piece when there's another MO so i can do a proper comparison tho) (and maybe another mod to replace the grille with meshing instead) ymmv however. i've always liked bright sounding cans. zeph, px200 pads, how much and get from where aye? hope you don't mind if i steal your idea - tamiya black gloss paint, sounds yummy haha. haha, just thought what if everyone who bought one recently changed their avatars like kehyi. lol.

btw feather, the kramer mod is really awesome. i basically made 8 holes around the mid ring, and enlarged the central hole, (all as large as i could go and still maintain the structural integrity) my mids and highs sound even clearer, did A/B comparison before n after with a ksc55, feels like it pushed the ksc75 to totally another level. i'll probably buy another piece next time we have another MO just to do a proper a/b comparo. haha.

http://www4.head-fi.org/forums/showthread.php?t=126234 basically you create more holes in the plastic grille covering the drivers, to lessen obstruction. more/larger holes in center tend to increase treble, more towards the perimeter increases bass. personally, i aimed for the mids tho. read on in the link, there's quite a few other useful mods you can do with this can. (such as recabling, etc)

yep, thanks dle4e. just finished the kramer mod, am enjoying them right now!

1)Dle4e_2005(paid) 2)Kai(paid) Woodlands MRT* / Tampinese / Town also can 3)leemunch(pay) 4)that dude(pay) 5)leemunch(pay) 6)Koolz(paid) 7)Koolz(paid) 8)clemo(paid) you're the boss, just tell me where in Singapore. 9)feather(paid) city hall / town party.gif 10)eSoteric(paid) preferably central 11)eSoteric(paid) 12)jack112(pay) 13)yoshiki(paid) kembangan, aljunied, tanah merah. depends on the time actually. 14)ihyr2(paid) Jaben, Tiong Bharu or Paya Lebar MRT 15)koolz(im716 paid) 16)paingod84(paid) anywhere along West line/NEL/town (i think Jaben bad idea now. bo lui. haha)

O_O we need to gang up and corner it. not gangbang tho.

i see.. must have fried the chip perhaps. thanks.

thanks guys..

anyone tried a CMOY with NJM4556AD chip before..? i had one which ended up halving my volume and hence it clip and distorted alot.. so i'm not sure whether this was due to my terrible soldering/i overheated the opamp/nature of the opamp itself.. i redid the soldering several times and i'm pretty sure it wasnt the soldering tho.. sorry but i got no pics etc.. i did this a year ago and it all ended up in the junkpile, but yeah basically i followed all the exact instructions at tangentsoft, only diff being the amp. any theories?

i know like the usual resistors and caps stuff are avail at SLT lah.. but what about the tube itself? anything else i should take note before starting off? http://www.fa-schmidt.de/YAHA/index.htm

but is it viable for our kind of purpose, or is it more for lower powered devices like remotes.. etc..?

point noted regarding the difficulties involved in using Li-ion batts, thanks guys. however, i happened to come across this, http://www.bairesrobotics.com.ar/elektor/1...p%20Battery.pdf but with no prior knowledge regarding electronics whatsoever, i'm totally lost. so what can this little gadget achieve eh?

well, yep precisely, the idea was to use the handphone as a charger. as in, all i gotta do is buy a spare batt for my current phone, one dedicated for the phone itself and the other for the amp. building on board charger, no thanks lah hehe i'm trying to keep it as simple as possible. what i've been doing of late is to hook up two wires into the back of my phone whilst i'm playing my guitar (the amp is a diy mini practise amp for my electric) haha. the phone works too at the same time tho i havent tried making calls hahaha. point noted on the issue of using caps and how the dc might not be clean and constant, thanks, but ok lah meanwhile the amp seems to work fine on the 3.6V altho it sounds cleaner with higher voltage lah of course.. so perhaps i can just carry on with one batt direct.. oh this whole project is a $0 expenditure. all parts came from junk, and should continue coming from junk and not out of my pocket. the guitar amp was made out of one of those cheapo/free gift $10 speakers (i just cut the wall power supply off and hooked it up to my old phone batt and made my own cabinet for the speakers (the plastic case is super ugly and not portable enough cos i'd like to carry it around when i meet up with my band.. maybe i'll go ask relatives n friends for old spoilt phones and collect all the batts hahaha. i'm damn cheapo lah. charging hp batts is way cheaper than buying 9v batts all the time. (or buying a proper 9v rechargeable.) (or bother waiting for a whole day for them to charge) anyone has any ideas on how to make a socket for the batt? oh btw if it provides any reference well the batteries i'm using are the white nokia batts. (older models like the 3200, 8250) (just before the gray/black ones)

i'm thinking of using old handphone batteries as power source for amp circuits, perhaps can be designed with caps as most of them are around 3+ volts to bump it up to 9v or something... anyone has any experience/thoughts on this? i was thinking.... hey i've got some old spare (dead) phones lying around, and like they charge much faster as compared to normal AA rechargeables, and are pretty compact. only problem currently is to build a proper socket (lest i figure a way of ripping the whole section out of the phone.)

which shop eh?

doh. thanks. i own the KSCs and all this while i thought they were 32ohms.

lol. there's nothing wrong with your ears. it's just natural, we tend to develop a dominant hand, leg, eye, whatever.. the dominant ear is the one you answer your phone with. if you like you can start training the other ear, like for me, i've been using my left ear more for phone conversations. i'm more confident with it now, last time i could never really hold a phone conversation on the left ear.. so i believe there must have been improvement. whether there's any scientific proof on this i have no idea tho.

username: eh, which koss ones are 60 ohm ones ah. sporta and portapro issit

the black dahlia murder - miasma between the buried and me - alaska norma jean - bless the martyr and kiss the child currently i'm experimenting with 'indier' styles of metal..

hi, welcome to the club... basically, i'm a noob as well, so perhaps some of what i'm sayin may be wrong (but i'm sure the other seniors will correct me), so ok: a portable amp uses a better quality amplifier than the typical ones common audio devices are built with, hence the better quality. of course, this also depends on your whole chain. i.e source --> amp (optional) --> phones for mp3 players, generally the built in amps are reasonable (for noobs like us), hence we look into upgrading our cans first (buy an amp first, but if your cans suck it's still good source-->good amp-->trash cans), and then optionally the amp. so mostly for noobs the bottleneck is the cans. cans come with a range of impedance, low ones (up til say 64ohms) you don't really need an additional amp to boost the signal as they can go pretty loud hooked up directly to the source. for higher impedance cans, then you really need an amp to drive 'em. this is where i'm not so sure myself, but i believe amps are not really about eq-ing the bass and trebs and all, they are there because they provide better, more even frequency response. -shrugs- i should shut up tho.

haha. i'm like viewing topgun's link, the ones where they modding the cable, with transformer's theme song playing in background. rofl. anyway, anyone has any interesting mods that they've tried that can be easily changed back to stock (cos i don't wanna void my warranty)? err... asides from changing pads, of course. haha. i didnt dare going out with socks on my ears.

err.. the... sls kind of version lah.. i kinda need to get it urgently, tried the protoolsfree version but it doesnt work on xp at all. if someone could kindly lend me a copy or something... thanks