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FiiO " Flagship " portable amp Mont Blanc/E12 discussing thread. - Page 17

post #241 of 3082
Thread Starter 

About the OP BUF of Mont Blanc,

 

We will choose one as the OP BUF for Mont Blanc, but not sure if you guys have special "feeling" about it.

 

BUF634, low power consume , warm sound quality. the specification will not as high as LM49600, the THD is about 0.03%

 

LM49600, special designed for audio, and need almost double power current compare with BUF634, very high specification, the THD is about 0.002%.

 

 

Any suggestion? 

 

BTW, the playtime will be about 15 hours if we use LM49600, and 20 hours if we use BUF634. the charge time is about 7 hours by USB port of PC, or 3 hours by 1.2A USB wall charger. the build battery is a 800mAh/11.1V.

post #242 of 3082

15 hours off battery to me is widely enough not to sacrifice the sound quality. But this is just my humble opinion.

post #243 of 3082
Quote:
Originally Posted by feiao View Post

About the OP BUF of Mont Blanc,

 

We will choose one as the OP BUF for Mont Blanc, but not sure if you guys have special "feeling" about it.

 

BUF634, low power consume , warm sound quality. the specification will not as high as LM49600, the THD is about 0.03%

 

LM49600, special designed for audio, and need almost double power current compare with BUF634, very high specification, the THD is about 0.002%.

 

 

Any suggestion? 

 

BTW, the playtime will be about 15 hours if we use LM49600, and 20 hours if we use BUF634. the charge time is about 7 hours by USB port of PC, or 3 hours by 1.2A USB wall charger. the build battery is a 800mAh/11.1V.

 

 

If the E12 features a socketed opamp, this is a minor decision as later it will possible to use other opamps...

post #244 of 3082
Quote:
Originally Posted by putente View Post


If the E12 features a socketed opamp, this is a minor decision as later it will possible to use other opamps...

Unfortunately, unlike BUF634 which does come in DIP8 package (or SOIC8 on a DIP8 adapter) and can be socketed , LME49600 only comes in non-socketable TO-263 surface mount. So it must be decided early on (*btw. this is just the buffer, not the main opamp).

My vote goes for the LME49600 - 15 hours is still long enough and the spec is superior.
Edited by ClieOS - 10/18/12 at 5:49am
post #245 of 3082
Quote:
Originally Posted by ClieOS View Post


Unfortunately, unlike BUF634 which does come in DIP8 package (or SOIC8 on a DIP8 adapter) and can be socketed , LME49600 only comes in non-socketable TO-263 surface mount. So it must be decided early on (*btw. this is just the buffer, not the main opamp).
My vote goes for the LME49600 - 15 hours is still long enough and the spec is superior.

 

 

Thanks for clearing that! In this case, I also vote for the LME49600...

post #246 of 3082
Thread Starter 

in term of sound quality, I am worry about people may decide by the OP AMP, BUF634 is a very good and famous op buf in the past years, even it is not designed for Audio first. personally , I will choose the LME49600 too.

 

also I had mentioned before, Mont Blanc will have two version, one is for DIY version which you can change the OP AMP by yourself but we will not provide any warranty and the quantity is limited. hope everyone can understand

 

us because our user may damage the products when they change the OP AMP.

post #247 of 3082
I vote for Obam... Err... I mean, LM49600. biggrin.gif

15 h w/ low power LED would be perfect. Better performance > longer battery life. wink.gif
post #248 of 3082
Thread Starter 
Quote:
Originally Posted by MrScratch View Post

I vote for Obam... Err... I mean, LM49600. biggrin.gif
15 h w/ low power LED would be perfect. Better performance > longer battery life. wink.gif

 

Mont Blanc came with two LED, one for power on/off and the alarm if there are any DC or over current . one for charge, includes charging, full power, low power status. 

post #249 of 3082
Quote:
Originally Posted by feiao View Post

 

Mont Blanc came with two LED, one for power on/off and the alarm if there are any DC or over current . one for charge, includes charging, full power, low power status. 

Awesome, this is a very helpful feature :) !

 

I vote for LM49600 , to me sound is number one priority, however battery and size are also very important. 15hours/charge for the LM49600 imo is a very range for all-day portable already :) .


Edited by Sherlockaled - 10/18/12 at 8:11am
post #250 of 3082
Quote:
Originally Posted by feiao View Post

Mont Blanc came with two LED, one for power on/off and the alarm if there are any DC or over current . one for charge, includes charging, full power, low power status. 

Yup, I remember you mentioning that. :-)
So the E12 "LE" will be a special DIY portable amp? Interesting!
Edited by MrScratch - 10/18/12 at 8:17am
post #251 of 3082

Ah, so you are looking at BUF634 and LME49600... you will not lack for output power then.  I think some people will be excited to be able to use the planar magnetic headphones with these amps.  As for which to choose, I think the circuit designer (you, as a compnay) knows better than us.

 

I don't have a strong feeling about it, but I also suggest LME49600.  It is cheaper, and for marketing purposes, it is better.  If you can get 15 hours runtime, that is already a lot.  If you use your phone as a player (some other devices too), you would need to charge it long before 15 hours anyway.

post #252 of 3082
Quote:
Originally Posted by feiao View Post

About the OP BUF of Mont Blanc,

 

We will choose one as the OP BUF for Mont Blanc, but not sure if you guys have special "feeling" about it.

 

BUF634, low power consume , warm sound quality. the specification will not as high as LM49600, the THD is about 0.03%

 

LM49600, special designed for audio, and need almost double power current compare with BUF634, very high specification, the THD is about 0.002%.

 

 

Any suggestion? 

 

BTW, the playtime will be about 15 hours if we use LM49600, and 20 hours if we use BUF634. the charge time is about 7 hours by USB port of PC, or 3 hours by 1.2A USB wall charger. the build battery is a 800mAh/11.1V.


Definitely prefer the higher spec LM49600, and 15 hours play time is good.

Is it possible for users to replace the 800mAh/11.1V battery with a higher rated compatible battery - say 1800 - 2200mAh (if available)?

Frank

post #253 of 3082

LM49600, quality for 15 hours will be enough.

 

:)

post #254 of 3082

FYi , the new sony's hpa-1 only last 5hrs btween charges...15hrs,it is over kill, gimme LM49600 !!

post #255 of 3082

LM49600

 

15 hours is plenty of time and SQ matters most.

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