FiiO " Flagship " portable amp Mont Blanc/E12 discussing thread, the pre order unit arrives. - Page 79

Quote:

Originally Posted by Chris J 

 

Say what?

Then it should have been posted in reviews.

 

You did title it the "...Review and Help Thread".

 

Anyway, it's your thread and you're free to do whatever you like with it.

I prefer to have a standalone thread for reviews.

Quote:

Originally Posted by joe it 

 

 

 

 

Excuse me if I revisit the topic, but less than 0 there are negative numbers; many amps use them for greater flexibility.

 

The same  Fijo for the E6 uses a -3db.

 

With the power of the E12 would be more indicated a -6/ or -12 db.

 

I am not a technician and I cannot see what contraindications may lead. 

 

 

Can you explain me why no

 

 Thanks

I was trying to be humorous. Obviously there is no number smaller than 0 if you want to make something louder. 

I guess what you are trying to ask is if the gain's labeled are actually the true gains and not just a convenient number to use?

You would have to ask FiiO that(JAmes) but he is currently celebrating CNY as am I

Quote:

Originally Posted by joe it 

 

I understand, you're very nice

 

but despite having waited days, has not arrived no response pertinete nor by James nor by ClieOs, nor by those who wanted to..

 

I thank you, we'll have to wait .... perhaps        

It's the new year celebration and break for FiiO.

Quote:

Originally Posted by joe it 

 

 

 

 

Excuse me if I revisit the topic, but less than 0 there are negative numbers; many amps use them for greater flexibility.

 

The same  Fijo for the E6 uses a -3db.

 

With the power of the E12 would be more indicated a -6/ or -12 db.

 

I am not a technician and I cannot see what contraindications may lead. 

 

 

Can you explain me why no

 

 Thanks

Quote:

Originally Posted by joe it 

 

I understand, you're very nice

 

but despite having waited days, has not arrived no response pertinete nor by James nor by ClieOs, nor by those who wanted to..

 

I thank you, we'll have to wait .... perhaps        

Sorry, I don't check this thread regularly as there are simply too many threads around.

E6 has a -3dB gain because a full line-level signal (2V) will clip the amp section. E12 has more than enough voltage swing to avoid clipping on line signal so it isn't necessary to have negative gain. If it was up to me, I'll like a -6db / 0 / +6dB kind of setting, but you do need to remember that negative gain generally is bad news for dynamic range (as a compromise) to achieve better control on volume range for sensitive headphone / IEM.

I use E12 with IEM all the time with no problem. It might not have been designed for IEM, but most of the time it still works quite well.

Quote:

Originally Posted by JamesFiiO 

 

BTW, the LME49600 can change to another working mode which will consume even more power but the sound will be even better, but the battery life will drop to less than 10 hours. there are not secret in the analog electronics technical , the true is that usually better sound quality need more power

 

unless you choose digital amplifier which still can't compete with analog amplifier so far.

If you can make a Fiio E13 or anything that's O2 sized but with much higher audio quality and power output than E12, then I'd buy it even if it can barely reach 10 hours of battery life.

I think O2 has made a strong case that there are people willing to sacrifice ergonomics and portability for better audio quality.

That and I think a strictly USB DAC to compliment E12 would be something I'm willing to pay top dollar for. I've been a huge fan of your company's D3 for a long while (I haven't heard the revised D03K though), and I've been itching to see a USB version that has a better opamp that gives better soundstage/stereo separation.

qq - the main gripe I have with the e11 is that the output socket is too loose and my jack comes out too easily/often.  Is this fixed in the E12?

Quote:

Originally Posted by JamesFiiO 

Quote:

Originally Posted by ClieOS 

 

It depends on the gain, volume as well as what kind of load you are running the amp to. Low impedance (such as CIEM) or high impedance (such as >250ohm) load tend to suck out more power as the former demands more current while the later demands more voltage. I have ran E12 over 12 hours on two different times on typical 32ohm load on normal volume myself.

 

I am not implying BH is bad in anyway - but law of physics stated that you can't spend more energy than you have. The reason FiiO can't put 100 hours of battery life (i.e. E7) into E12 is because E12 is outputting a lot more power than almost any portable amp in the market now, and those power needs to come from somewhere. The only solution is to cut down power (which voids the design goal of a portable that is capable of driving some of the hardest load) or increase the battery size (which voids the 'portable' part of the amp). If you are getting 100 hours of battery life, then the logical question is, how is it possible to get such an exceptional battery life without compromising other aspect in the design? It is optimized for battery life or driving power? It is not an issue of right or wrong, but the designer's goal and how well it performs to the demand.

 

Thanks for the explanation, any designer have to make decision between the size, performance, battery life, cost and some other things. the battery capacity of the build in battery is equal to 2400mAh@3.7V, the output power is 850mWx2, compare with our old E7, it is 1100mAh and the battery life is

 

about 100 hours and the output power is about 150mW X 2.  

 

BTW, the LME49600 can change to another working mode which will consume even more power but the sound will be even better, but the battery life will drop to less than 10 hours. there are not secret in the analog electronics technical , the true is that usually better sound quality need more power

 

unless you choose digital amplifier which still can't compete with analog amplifier so far.

Just came across this thread. Nice specs! I have a DIY amp here that uses a similar set-up and I set to the better working mode. Would be interesting to have an amp where this could be switched in and out though I'm not sure if that could be done in a convenient way. Maybe via dip switches on the board accessible through a hole? Just throwing the thought out there. 

By the way, let me know if you're coming to the FujiyaAvic show in Tokyo in May as it'd be great to be able to say hi. 

I am wondering if anyone can compare the E12 sonically to the Headstage Arrow 12HE?
 

Quote:

Originally Posted by UprightMan 

qq - the main gripe I have with the e11 is that the output socket is too loose and my jack comes out too easily/often.  Is this fixed in the E12?

The input and output jacks both click into place. They feel really solid.

Quote:

Originally Posted by Evshrug 

Quote:

Originally Posted by Currawong 

Just came across this thread. Nice specs! I have a DIY amp here that uses a similar set-up and I set to the better working mode. Would be interesting to have an amp where this could be switched in and out though I'm not sure if that could be done in a convenient way. Maybe via dip switches on the board accessible through a hole? Just throwing the thought out there. 

By the way, let me know if you're coming to the FujiyaAvic show in Tokyo in May as it'd be great to be able to say hi. 

Maybe it could switch to this mode automatically if plugged into a wall outlet and turned on? Sort of like how laptops switch to high performance mode when plugged in to power? Maybe a lower power mode during portable use to extend battery life... Then again, I get a few days of my typical use out of the E12 as-is.

Good thinking! Poor James is going to have to get the kitchen sink built into the E12 if we keep coming up with these ideas though.