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Need help. PA2V2 vs. Fiio E7 - Page 2

post #16 of 29
Quote:
Originally Posted by kingpage View Post




There has not been enough evidence with double-blind testing showing that 24bit is objectively distingishable from 16bit. But of course, everyone is entitled to their subjective opinion, and if you enjoy 24bit more than 16bit, no one is stopping you. Note that many companies do a better mastering job with their high definition version of the same recording.

 

This thread is great, not sure if you have read it. The OP states the there is no difference between 16bit and 24bit in theory, the extra headroom you talked about from 24bit is only useful for recording purposes, not for listening. It's been extensively discussed there already.



I did read that thread, very interesting read indeed.

 

In regard to the post, it was mainly meant to point the differences of 44.1 to 48 or 96KHz audio, and since many 96KHz content is also 24bits, I just added that. I wish I could remember which thread was it where Dan Lavry wrote an interesting insight on the ideal sample rate, which is somewhere between 48 and 96KHz, though closer to 96KHz. And that goes around what I was saying, the point being that if having the option, going for 96KHz content/hardware would be preferrable than 48, or 44.1 for that matter.

post #17 of 29
Quote:
Originally Posted by Roller View Post





I did read that thread, very interesting read indeed.

 

In regard to the post, it was mainly meant to point the differences of 44.1 to 48 or 96KHz audio, and since many 96KHz content is also 24bits, I just added that. I wish I could remember which thread was it where Dan Lavry wrote an interesting insight on the ideal sample rate, which is somewhere between 48 and 96KHz, though closer to 96KHz. And that goes around what I was saying, the point being that if having the option, going for 96KHz content/hardware would be preferrable than 48, or 44.1 for that matter.


But that is for in case someone has super human hearing ability beyond the standard 20kHz. For almost everyone else, 44.1kHz sampling rate can in theory reproduce perfectly all that is needed for every sound/frequency under 22kHz which is already over 20kHz. 96Khz was suggested to rule out the implausible situation.

post #18 of 29

No, that is for just about every single person. The way the sound reaches the listener isn't related to the human hearing threshold. 96KHz wasn't suggested at all in such context, I don't know where you got that.

post #19 of 29
Quote:
Originally Posted by swbf2cheater View Post

I can provide some insight, as I've used both a lot

 

Garys PAv2 is a pure amp, and its pretty decent for cheap headphones, as a personal rule I wouldnt use it for anything over $100.  Great for cheaper budget IEMS.  The sound quality is okay, i would not rate it good.  There are other amps out there that are better for that price, but Garys pav2 has a very transparent sounding amp, good layering so to speak, although it sounds grainy compared to the E7, for $60 or so, excellent deal

however if you want a DAC, look at the HOTSPOT AUDIO BITPERFECT, its literally identical to the pav2 in the exact same case and it is one of the nicest DACs I've ever used, has a fantastic sound to it, nice and warm, velvet like with very good sound quality.  But, its only a usb dac.  The guy who runs the site is a really nice guy and replies fast.

 

The E7 is a different beast.  It is 75% DAC and 25% Amp.  the Dac sounds excellent, definitely a little nicer than the hotspot audio dac.  Using foobar, flac and wasapi is pure win.  Its an all around great DAC.  The amp portion is lacking, but it does a great job with IEMS. When I use my Audio Technica ESW9 with rockbox clip amped with the E7, there is almost no difference than without using it and just using the sansa clip+   however, something like my 9wave Pros sound significantly nicer, much more sparkled and clean.  

 

There are a few downsides to the Fiio E7, like the bass boost, its ugly and something I never use.  Warps the bass and makes it muddish at least to the gear I have.  Also, the front face plate is easily scuffed and cracked.  For an example, look below.  This e7 was purchased just 5 days ago and its already battle damaged to no end, it happened on the first day when I forgot to put the screen cover on it and let it tumble around in my pocket with my sansa clip for 1 day.

 

to sum it up, you should get the Pav2 if you have higher impedance needs, but you will sacrifice the extra power with a decrease in sound quality if you are using a more expensive set.  If you need just a Dac, you should get the E7, if you want a much more powerful dac, get the Bitperfect, if you want something to do light dac work and something to help out lower impedance sets or iems, you cant do better than the E7

 

salutes*  Battledamaged after 1 day

 

P2250220.JPG


I drive my Pro 900 with Gary's amp and must admit I love it thus far (source is Clip+ (Rockboxed)). I'm not saying you are wrong about the PA2V2 in any way. All I care about right now is that my 'phones can be driven properly (proper impedence matching). If you are right about Gary's amp then I have a lot to look forward to in the future with my Pro 900 once I acquire new gear. :)

post #20 of 29

I dont want you to get the impression the pav is bad in any way, its fantastic and i love it.  It has its upsides and downsides.   Garys Pav2 is not really meant to drive higher quality headphones, you could be missing a lot of quality by using it.  The pav2 is powerful enough, but is it clear enough?  Sadly the answer is no if you are using an expensive set like that.  But if you are happy, dont you dare let anyone stop you from enjoying it or swaying you to get something else :) 

post #21 of 29
Quote:
Originally Posted by swbf2cheater View Post

I dont want you to get the impression the pav is bad in any way, its fantastic and i love it.  It has its upsides and downsides.   Garys Pav2 is not really meant to drive higher quality headphones, you could be missing a lot of quality by using it.  The pav2 is powerful enough, but is it clear enough?  Sadly the answer is no if you are using an expensive set like that.  But if you are happy, dont you dare let anyone stop you from enjoying it or swaying you to get something else :) 


You shouldn't be saying higher quality, you should be saying impedance levels.

post #22 of 29

No, I stand by what I said and Im not exactly sure where you are going with your comment.  The pro 900 is only 40ohms and easily driven, the Pav can amp it nicely but its overall sound quality is no where near something like the RSA SR71 or any a more expensive Ibasso.  Garys Pav2 has a nice driving ability, but again its sound quality is not something I would ever mesh with a pro 900.   

 

O.o

post #23 of 29

Oh yeah I do love it. I mean yeah it's not at it's full potential but realistically I can't get to the full potential given my finances. But I am looking forward to the future for sure! I am thinking that I am going to go with the E7/E9 combo and match it up with my laptop PC. Although, I am wondering... my dad has a Denon receiver (not sure which model but I will go look in a moment) and I was wondering if I could hook it up to my Clip+ (Rockboxed) and listen to my headphones through the receiver. Does the receiver contain a decent amp??

post #24 of 29

After A/Bing my PA2v2 with my mac it's astounding the clarity and bass thump one gets from the PA2v2. I just damped my grados, and man that bass is so prevalent! With just my mac the bass is their but it isn't as abrasive (in a good way). I love this thing.

post #25 of 29

Yeah it definitely delivers a nice bass response. Sounds nice on my Pro 900. But I do look forward to the future of hearing more of what these 'phones can do.

post #26 of 29

hey man have you heard any other ultrsones per chance?

post #27 of 29

Unfortunately I haven't. I'd love to get my hands on the Pro 2900 and compare though. I haven't heard great things about the HFI series relative to the Pro series. They are really, really detailed cans.

post #28 of 29
Quote:
Originally Posted by kingpage View Post




But that is for in case someone has super human hearing ability beyond the standard 20kHz. For almost everyone else, 44.1kHz sampling rate can in theory reproduce perfectly all that is needed for every sound/frequency under 22kHz which is already over 20kHz. 96Khz was suggested to rule out the implausible situation.



It's much more comlex than that if you look at low level noise, distorion, phase shift, ringing etc. There will always be debate about threshold of hearing but there's more to this than sample rate doubling audio band. 24/96 still filters above 20k. Above 24/96 there doesn't seem to be much to offer sonically if the DAC is well designed with the ability to oversample (not exactly the same as upsample) with use simple filters. There are those that will disagree but I suspect it's kit related. Lavry isn't a fan of of extremes but sees benefit, as I do in practice of the playing back, at 24/88 or 96. I have lots of performances in both 16 and 24 bit formats.


Edited by goodvibes - 6/11/11 at 7:10am
post #29 of 29

I was choosing with the pa2v2, e7, soundmagic a10, and e6. I will be using an HD25 with an iphone 3gs, soon to be iphone 4. I want less sibilance tight bass, maybe a little more of it, and a full sound. 

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