sashaw said:

I am selling my Lear FSM-01 at the moment. Like to see what you think about it. 

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My FSM-01 impression is here: http://www.head-fi.org/t/574826/impression-lear-fsm-01

As an amp, better sounding than almost all the amps in this shootout except for the 3 Channels Amp. I think the two is close to be on par.

Thanks for the reviews it gives a great summary of some great products in this category. I think Fred_fred_2004's 3 Channels Headphone Amp is great sounding - For anyone in the market in this price range Also worth considering is The Ultimate Cmoy Rechargeable also made by Fred_fred_2004 and is similar price to the 3 channel heaphone amp in the review above (picture above). This has transformed my listening from my cowon J3 and S9 players amd works well with my IEM (IE7 triple fi and shure SE520) along with full sized cans.

Thanks for the review!

I just received the PA2V2. I don't hear any difference yet, I use easy to drive headphones (AKG K240 and Audio Technica D40fs) so I'll give it a week with the amp and see if I notice any difference.
 
What I did notice from the first minute was pretty noticeable EMI when I plugged it into my Android.

The EMI was gone after I re-seated the batteries. I still can't tell a difference between listening with or without the PA2V2.
 
However, I got the Fred_fred_2004's rechargeable cMoy (Same one tony posted above). It actually has an impact on the sound. The lows sound just as big but less muddy.
 
The problem however is that it's not really rechargeable. It works from the DC charger but once I unplug it, it dies after 5-15 minutes. I'm currently speaking to Howard via eBay and trying to resolve this issue...

Howard truly takes care of his customers. Awesome amps from an awesome Aussie!
 

... so I got the JDS Labs cMoy BB 2.03 2x9V [the most expensive one they sell] how do I know which opamp is in it? You mentioned the AD8620 and another one...
 
My main question is seeing as I have the best one they sold, how will it compare to an E11 [which is still 8 days out for me]
 
My issue with the cMoy is I'd like a tiny bit more bass boost in the sub region, for mids it's wonderful and at about 20 horus burn in, it's as good [bass wise] as my E6 on the Blue LED setting [which btw the Blue LED setting E6 sounds horriably dark and almost muddy compared to the cMoy]
 
I got the E11 simply because I saw the words "Colored" and well I want an ENTIRELY transparent amp for my Dt 880 so I can use them for pure Refrance... so of the two the E11 and the 2x9V cMoy BB 2.03, which is more Transparent?
 
[I do how ever like the cMoy, it brings more detail and MUCH more width in sound stage to me than the E6]
 
Looking at the Ultimate cMoy Rechargable by Fred_Fred_2004, I noticed buying from him can drop u about $120 if ur in the states... $20 more than my JDS <.< I hope his isn't to much better than mine q.Q' [Can't complain about mine though]

Stock cmoyBB comes with OPA2227. You can check by looking on the opamp (the big black chip with 4 pins on two sides), it will say '2227' on it. If it is AD8620, it will be very small and on adapter, since it only comes in SOIC package. AD8620 is far more expensive than OPA2227, so you will have buy it on your own (unless you specified when ordering).

If you are looking for a very transparent portable amp, I think you will need to move up to the $200 category and beyond, especially since DT880-250 isn't the easiest of cans to drive for most sub-$100 amp.

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clieos said:

Stock cmoyBB comes with OPA2227. You can check by looking on the opamp (the big black chip with 4 pins on two sides), it will say '2227' on it. If it is AD8620, it will be very small and on adapter, since it only comes in SOIC package. AD8620 is far more expensive than OPA2227, so you will have buy it on your own (unless you specified when ordering).
If you are looking for a very transparent portable amp, I think you will need to move up to the $200 category and beyond, especially since DT880-250 isn't the easiest of cans to drive for most sub-$100 amp.

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well the cMoy I have has enough power to drive them without any distortion [I tired my Fiio E6 it sounded like some one was throwing rocks at my ears] and bwah it is that 2227 hunka junka <.<,
 
Which my cMoy Dt 880 hifiman hm 601 Combo sounds fine [much better than Zune Xb 700 Fiio E6] but yea a better Amp is needed, I'm actually selling my Nintedo DS's soon so that Should Bring in the money I need to get that new Amp! There is actually one set of songs that sounds much cleaner with the cMoy when the bass Boost is off so... $189 amp here comes I e.e [Should not have gotten that E11 xD Oh well no biggie <3]

Great comparison, I was thinking in the FiiO E11 for an IPod Classic whit a Sennheiser HD 595.
Thanks for the review

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h3ndrix said:

Great comparison, I was thinking in the FiiO E11 for an IPod Classic whit a Sennheiser HD 595.
Thanks for the review

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Glad you liked it! The cMoy imo is a GREAT portable SS amp for Transparent cans like the Dt 880 pro 250 ohm. It has a nice subtle warm sound with rich mids and smooth highs. More V shaped and fun cans will benifit from the E11 much more since it's significantly less colored 

Very concise and helpful review, its obvious a lot of time went into it.  Thanks for the help

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jham1496 said:

Very concise and helpful review, its obvious a lot of time went into it.  Thanks for the help

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Yea all of us here, listen and compare our amps alot!
 
One I think maybe should be added are the Bravo V2 and Indeed G3 [it's around $119 but that's cuz it's the holidays] they are both Intro Tube Hybrid amps... I've been looking at them my self... and I might add a review of them here since they are Sub $100! If CeliIos let's me :3
 
still glad you guys are enjoying this thread communites combined listening! 

Mshenay,
Two things, first, ClieOS is reviewing portable amps here, mainly targeting those most suitable for use with sensitive IEMs. The O2 is probably as large as he'll include. Second, posting your review in the comments thread here will get buried in a day or two, the review would be more useful if you write it in the regular Reviews section so that your rating is added to others and people will see your review if they go looking for information on the amp. Make sense? I really ought to write my review on my class-A tube amp, but I keep getting delayed from really sitting down and thinking it through.

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evshrug said:

Mshenay,
Two things, first, ClieOS is reviewing portable amps here, mainly targeting those most suitable for use with sensitive IEMs. The O2 is probably as large as he'll include. Second, posting your review in the comments thread here will get buried in a day or two, the review would be more useful if you write it in the regular Reviews section so that your rating is added to others and people will see your review if they go looking for information on the amp. Make sense? I really ought to write my review on my class-A tube amp, but I keep getting delayed from really sitting down and thinking it through.

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Yea good point, I just love this thread so much I figured "LETS ADD TO IT MAN!" but that's a good point you make. I... don't own iems so I wouldn't be helping to much lol
 
Still... the Hybrid Tube I have is smaller than the O2 [it's TINY]  but mines comes in tommorow... you and I outa review them at the same time! Makes it more fun I would think
 
Also ... OMG the Fiio E6 is the #1 best selling headphone amp at Amazon right now... wow... xD that's a real shame. But hey I started on the Fiio E6 my self. so Hopefully ALL THOSE E6 owners will mature into E11 or JDS lab amps one day lol