[jseaber]

Quote:

I am about to order the JDS cmoy with BB.
 
I am going to be pairing it with my RS1i and a Sandisk clip zip
 
I am uncertain if I should get the version with two 9 volt batteries or just one.
 
Also debating if I should get the rechargeable batteries....does it recharge when an ac adapter is plugged into the wall?

 
A single 9V is adequate for Grados. 18V is best for driving higher impedance sets:
 

1. Standard, Non-rechargeable, 1x9V battery. Best for most users. External DC jack can be used to power the amplifier; does not charge battery.
    
2. Standard, Non-rechargeable, 2x9V batteries (18V). Recommended for high volume listening with 120+ ohm headphones.
    
3. Rechargeable, 1x9 battery. Ideal for portable use of most headphones. Includes 1x9V Tenergy low self-discharge NiMH battery. Requires a 10V+ AC/DC adapter (not included)!
    
4. Rechargeable, 2x9 batteries. Recommended for portable use of 120+ ohm headphones. Includes 2x9V Tenergy low self-discharge NiMH batteries. Requires a 19V+ AC/DC adapter (not included)!

 
 
The non-rechargeable edition is a better value in my opinion, since an external charger is faster and about the same cost. We only build rechargeable cMoyBB's because so many people asked for them.

 

[iammbox]

anyone have experience with either the cmoy or e11 with sennheiser HD 650?

 

[jnicoara11]

the cmoybb is much better, just amazing!

 

[Th3Guardian698]

I've been looking at both of these amps for quite some time and I'm still trying to figure out which ones would best suit V-moda M-100s (I don't own them yet but I'm almost 100% those are my starting headphones) I like the idea of heart thumbing bass but I also don't want to sacrifice any of the mids/highs.

 

[zazex]

Quote:

Wow, what a great thread. I just got the E11 delivered from Amazon to compare to my beloved JDS cmoy with BB. Everything posted here makes a lot of sense and I agree with many of the observations. However, when I want to sit back and enjoy my music (hard rock/metal) the cmoy with BB on is tough to beat. I just don't hear the bass with the E11 imo. I vote for the JDS cmoy.
 
I'll be returning the fiio tomorrow. I just wish I could swap out the enclosure. The Altoids tin is pretty dented up.
 
Thanks for listening. etys rule

 
I've had both of these amps for a year or more.
 
I like the cMoy's sound better.  The E11 is very punchy and direct; the cMoy is fuller and rounder
yet still with strong dynamics. It never gets harsh as the E11 sometimes can. 
 
I like the E11's form factor more, its obviously thinner and lacks the large volume pot.
So it goes in my daily-carry shoulder bag, along with a couple of extra batteries that
I picked up on on eBay.  I keep all the batteries charged.  If I need an amp, I have the E11.
 
I guess I can say this another way - i.e. if the cMoy had the form factor of the E11, I
wouldn't bother with the E11 at all.
 
(n.b. I do have other portable and desktop amps...)

 

[lexxmexx]

Are the differences in sound very drastic between the two?

I listen to jazz, smooth jazz and bossa nova mostly, so I am wondering which is better?

 

[adamlr]

Quote:

Are the differences in sound very drastic between the two?

I listen to jazz, smooth jazz and bossa nova mostly, so I am wondering which is better?

better doesnt enter into it - thats a matter of opinion.
as for difference in sound, i personally couldnt detect any difference whatever, but others can. check this out:
http://www.head-fi.org/t/596482/the-sub-100-portable-amps-shootout-10-1-amps-compared