ElephantAudio

Thanks, the think is at $340 CDN for UM PRO 20, is there some inear dual or triple driver EIM as good if not better at much decent price price?

I own a pair of UM PRO 10, with foam tips, I love the sound, the over the ear aspect and don't think an IEM with changing cables would do a significant difference! Would it be worth upgrading to double driver UM PRO 20 for the price, would there be a significant sound change? Or should I look elsewhere for sound upgrade?

These little earphones ''sounds'' great, but if you consider investing for long time, pass by, their cable is very bad. Had to return mine afetr 6 months (thanks they were on warranty at that time, but the sent as replacement brock after 12 months

Finally I'm trying it actually. Standard mCoy amp is 9v battery.

Any thoughts on the OPA 2111 Dual Low Noise Precision Difet Operational Amplifier audio chip? OPA2111 I'm not a technician at all and wish to know if can be use on cMoy v2.03?

so it's strickly a marketing ftool since it's a fact for all audio cables?

Ok ,which applies only on changeable earphone-headphone cables! What's those specs we often find on premium cables "Ultra Pure Silver Plated Oxygen Free Copper (UP SPOFC) and Ultra Pure Oxygen Free Copper (UPOFC)" as these:http://www.audiovisualonline.co.uk/product/1516/van-damme-stereo-3.5mm-jack-to-jack-cable/?source=aw&utm_source=AffiliateWindow&awc=3586_1343354986_887cd275f986ed48220c26b040c9ac67

Can you elaborate on this''most obvious difference comes when different material is used'', would it be worth to invest in a different cable then Fiio L2 for better sound or useless with equipment I have?

You seem at ease with DIY cables, does it really make a difference? I'm Fiio L2 10cm to connect my Zune HD to cMoy portable and was looking at this Hisoundaudio 3.5mm to 3.5mm Golden Inter Cable (24K golden plated jack) http://www.cafr.ebay.ca/itm/380384971382?s...984.m1423.l2649, when someone told me not spent money for nothing since cooper is cooper!

I've tried the opa627BP on both cMoy v02 standard and rechargeble 9v, using power adapter but no sound at all and chip is put on correctly, don't know why! By the way, to bad this opa 1642 can't just be put in like other chips, I would have tried it!

They're was none here, found on eBay, but even cheaper on Amazon Japan, $66 US: http://www.amazon.co.jp/gp/switch-language...&language=en_JP

About $150US... http://www.amazon.co.jp/%E3%82%BD%E3%83%8B...43267571&sr=1-3 but eBay is cheaper...http://www.ebay.ca/itm/Band-new-for-SONY-MDR-7506HD-Professional-Studio-Headphone-in-box-/190701610616?pt=US_Headphones&hash=item2c66b3a678

http://www.ipowerus.com/Products/DC9V520pro/DC9V520pro.htm http://www.batteryjunction.com/ipowerus-9v-520.html What is that cable on the right?

What chip are you using for 18v cmoy? Have you tried the OPA627? Ref.: http://nwavguy.blogspot.ca/2011/08/op-amp-measurements

???

http://www.ebay.com/itm/JVC-HA-FXD80-Z-Inn...=item1e6f9f9b1d

Yep!

As a matter of fact, lack of mids for me but I'm using it with a mCoy portable amp and 4456 chip, so very good sound after all, clear, large. Better than my Sony MDR-EX600!

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Yep...http://www.geekstuff4u.com/jvc-ha-fxd80-z.html JVC HA FXD80_Z Press release

As anyone tried these Carbon Nanotube technology earphones?

as anyone as tried some different chip upgrade on this amp? I'm actually trying a NE5532P chip! Good clear sound on my Atrio 5 Pro or Sony Sony MDR-EX600, but hesitation on M-Audio AV40 speakers!

mCoyBB 2.03 using 2268/4456 chip with Atrio 5 or Sony MDR-EX600 or JVC HA-FXD80-Z earphone Objective2 or mCoyBB 2.03 (using 5532 chip) with Ultrasone Pro 900 at home

Just got mine and great, I'm only wondering if I should upgrade NJM2068D amp chip for NE5532AP, been told at standard gains it has lower distortion but since I'm not at all an electro technician, need feed back. I'm basically using the amp with Ultrazone Pro 900. Since I also have two cMoy v2.03, I'm thinking of upgrading actual chip on one with NE5532AP if it fits and sound...better?

Wish U could do the same with mine, not satisfied with my actual Mini3 and hesitate to change to O2 amp!