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!

opa627 abit ex

currently using

opa 1642 i think been awhile since i rolled my opamps

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

Greetings audio gurus,

 

I'm interested in getting a pair of MDR 7506s to use with my macbook pro and electronic drumkit for recording purposes.

 

However, I've done an online search at popular local stores (e.g: Mustafa, etc) and I've not been successful in finding these cans.

 

Could someone kindly let me know where I can get these headphones in singapore at a reasonable price (hopefully below SGD$150 based on the the listed prices in US + shipping costs)

 

Thank you!

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

oh yeah lucky to have found it there

now happily rolling op amps till i need to get new batts

any gd rechargeable 9v batts?

http://www.ipowerus.com/Products/DC9V520pro/DC9V520pro.htm

http://www.batteryjunction.com/ipowerus-9v-520.html

got bored past few days so decided to make a portable cmoy based amp

ended up with a 18v monster

 

What is that cable on the right?

my 18v cmoy or O2 for portable use

 

but mostly my O2

What chip are you using for 18v cmoy? Have you tried the OPA627?

Ref.: http://nwavguy.blogspot.ca/2011/08/op-amp-measurements

???

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!

URL=http://imageshack.us/photo/my-images/580/sanstitre1svi.jpg/][/url]

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?

i guess, this is what i want after research & experiment for so long....

 

Specification:

1. L&R Channel: LM4562MA

2. Ground Channel: OPA227U

3. Q. Current: 14mA

4. Power Rail Splitter Caps: Panasonic FM 330uf//330uf//330uf per channel

5. Power Supply Reservoir Caps: Panasonic FC&FM 2200uf//470uf

6. OpAmp Decoupling Caps: Wima 0.1uf

 

 

IMPRESSIVE!

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