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V-MODA VAMP VERZA/METALLO: Discussion/Feedback, Reviews, Pics, Crowdsourcing Ideas - Page 45

post #661 of 1283
Quote:
Originally Posted by Rhauserjr View Post

Anything for us windows phone users??? The Lumia 928 is a beautiful new handset and along with its predecessors is gaining steam in the smart phone community. Seems there are currently like 4 cases for us on the market. Why not set the bar??

 

I think the problem is that it isn't compatible for Windows OS. At least that would make sense. If the Amp/DAC was compatible for Windows Phones, I'm sure Val wouldn't be adverse to making a Metallo case for it. 

post #662 of 1283
Quote:
Originally Posted by Rhauserjr View Post

Anything for us windows phone users??? The Lumia 928 is a beautiful new handset and along with its predecessors is gaining steam in the smart phone community. Seems there are currently like 4 cases for us on the market. Why not set the bar??

 

If there are only 4 cases being made for it, I would bet you are overestimating the "steam" it is building.  If sales are that strong, trust me, case manufacturers will be all over it.  For Val to be profitable, or merely break even for that matter, a phone model has to be exceedingly popular to justify the design and tooling costs associated with machining a case.  Just a guess, but would be surprised if it were not the case.  (No pun intended) :)

post #663 of 1283
Quote:
Originally Posted by Rhauserjr View Post

Anything for us windows phone users??? The Lumia 928 is a beautiful new handset and along with its predecessors is gaining steam in the smart phone community. Seems there are currently like 4 cases for us on the market. Why not set the bar??

I can't remember I posted it here or not, but I did tested my VERZA with the Lumia 920 and it won't work at all, so for the 925 or 928 they wouldn't work either.


Edited by DrSheep - 6/8/13 at 1:04pm
post #664 of 1283

Anyone able to offer a comparison between the Verza and the Sony PHA-1? Especially with sensitive iems? I need to choose one for my portable rig with the iPhone 5/JH 13 and there's just no real comparison available.

post #665 of 1283
Quote:
Originally Posted by scolaiw View Post

Anyone able to offer a comparison between the Verza and the Sony PHA-1? Especially with sensitive iems? I need to choose one for my portable rig with the iPhone 5/JH 13 and there's just no real comparison available.

I should be getting a PHA-1 shortly, but do not have any custom IEM's to test it with.  I'll be able to compare the 2 amps with standard headphones though.  Stay tuned...  

post #666 of 1283
Quote:
Originally Posted by Speakerphile View Post

I should be getting a PHA-1 shortly, but do not have any custom IEM's to test it with.  I'll be able to compare the 2 amps with standard headphones though.  Stay tuned...  

Cheers. Thanks mate! smily_headphones1.gif
post #667 of 1283

Very interested as well.  The PHA-1 will have to outperform the Verza by a substantial margin to compensate for the larger form factor and the shorter battery life.

post #668 of 1283
Quote:
Originally Posted by Iron-Buddha View Post

Very interested as well.  The PHA-1 will have to outperform the Verza by a substantial margin to compensate for the larger form factor and the shorter battery life.


Don't forget it is cheaper too. You can get it for about ~$400 so 2/3 the price of a Verza. 

post #669 of 1283

sony's new portable amp/dac has 10ohm of output impedance which will give huge distortion on most of mutipul BA type iem

post #670 of 1283
Quote:
Originally Posted by scolaiw View Post

Anyone able to offer a comparison between the Verza and the Sony PHA-1? Especially with sensitive iems? I need to choose one for my portable rig with the iPhone 5/JH 13 and there's just no real comparison available.

It has 10ohm of output impedance which will give huge distortion in most of multi-driver IEM

post #671 of 1283
But isn't the Verza's output impedance 10 Ohms too? So what you're saying is neither will be appropriate. :/
post #672 of 1283
Quote:
Originally Posted by scolaiw View Post

But isn't the Verza's output impedance 10 Ohms too? So what you're saying is neither will be appropriate. :/
Based on guideline. The 1/8th recommendation is not a hard & fast rule. I've found the 10 ohm OI works with some rather bassy IEMs where that OI's bass rolloff actually makes the IEM sound somewhat more balanced. Next is based more on OpAmp preference of Verza's OPA1612 vs PHA-1's LME49860.
post #673 of 1283
Quote:
Originally Posted by AnakChan View Post


Based on guideline. The 1/8th recommendation is not a hard & fast rule. I've found the 10 ohm OI works with some rather bassy IEMs where that OI's bass rolloff actually makes the IEM sound somewhat more balanced. Next is based more on OpAmp preference of Verza's OPA1612 vs PHA-1's LME49860.

 

Hmmm perhaps I should've gone with the JH-16 then? Too late now.... :P

But in all seriousness, all the options I have looked at are at 10 ohms. Be it the Verza, PHA-1 or HP-P1. They all have an impedance of 10.

The only two other options would be the CLAS (paired with a low impedance amp) or HiFi M8 (which offers 1, 2 or 10 ohm) and neither is exactly "portable".

If amp impedance should be as low as possible, why are portable amps continued to be produced with higher impedances?

Perhaps directly out of the iPhone 5 with and output impedance of about 3 ohms (or maybe a new DAP like the AK100) will be the way to go? I wonder if the difference is that noticeable?

Edit: Apparently the AK100 has an output impedance of 22 ohms.... so that's even worse. What's the point of a portable amp (or in this case a DAP!!) if not to be used with portable low impedance headphones? It's not like I'd take a T1 out on the daily commute! :/

This entire manufacturing process seems very counter-intuitive to me.


Edited by scolaiw - 6/10/13 at 10:28pm
post #674 of 1283
Quote:
Originally Posted by scolaiw View Post

Quote:
Originally Posted by AnakChan View Post


Based on guideline. The 1/8th recommendation is not a hard & fast rule. I've found the 10 ohm OI works with some rather bassy IEMs where that OI's bass rolloff actually makes the IEM sound somewhat more balanced. Next is based more on OpAmp preference of Verza's OPA1612 vs PHA-1's LME49860.

 

Hmmm perhaps I should've gone with the JH-16 then? Too late now.... :P

But in all seriousness, all the options I have looked at are at 10 ohms. Be it the Verza, PHA-1 or HP-P1. They all have an impedance of 10.

The only two other options would be the CLAS (paired with a low impedance amp) or HiFi M8 (which offers 1, 2 or 10 ohm) and neither is exactly "portable".

If amp impedance should be as low as possible, why are portable amps continued to be produced with higher impedances?

Perhaps directly out of the iPhone 5 with and output impedance of about 3 ohms (or maybe a new DAP like the AK100) will be the way to go? I wonder if the difference is that noticeable?

Edit: Apparently the AK100 has an output impedance of 22 ohms.... so that's even worse. What's the point of a portable amp (or in this case a DAP!!) if not to be used with portable low impedance headphones? It's not like I'd take a T1 out on the daily commute! :/

This entire manufacturing process seems very counter-intuitive to me.

Because they know people won't care and money will be thrown at the screen regardless. XD

post #675 of 1283
Quote:
Originally Posted by scolaiw View Post

 

Hmmm perhaps I should've gone with the JH-16 then? Too late now.... :P

But in all seriousness, all the options I have looked at are at 10 ohms. Be it the Verza, PHA-1 or HP-P1. They all have an impedance of 10.

The only two other options would be the CLAS (paired with a low impedance amp) or HiFi M8 (which offers 1, 2 or 10 ohm) and neither is exactly "portable".

If amp impedance should be as low as possible, why are portable amps continued to be produced with higher impedances?

Perhaps directly out of the iPhone 5 with and output impedance of about 3 ohms (or maybe a new DAP like the AK100) will be the way to go? I wonder if the difference is that noticeable?

Edit: Apparently the AK100 has an output impedance of 22 ohms.... so that's even worse. What's the point of a portable amp (or in this case a DAP!!) if not to be used with portable low impedance headphones? It's not like I'd take a T1 out on the daily commute! :/

This entire manufacturing process seems very counter-intuitive to me.

 

This was actually a big part of the design surrounding the NwAvGuy's Objective 2 amp. He focused at lowering OI to ~0.54ohms, and you can't look anywhere really and not find great reviews on that device. And there's a mod for the AK100 by RWA to bypass the final output and lower the IO to 0-2ohms, which has been reported to sound better just about everywhere. From what you read here and there there's something to it, but like a lot of the things we discuss here on head-fi, manufacturers don't care about them. Yes money will be thrown at their products, but it's too bad such little things slip by.

 

If I had a company making products I'd have sleepers watch forums and report back concerns and needs, why not? Places like head-fi provide mountains of FREE research and feedback just waiting to be implemented by the ones with the brains to read it. To a more or less degree, the V-Moda M100s buyer response in general and then the one on here can attest to this. It's amazing something like the AK100 can come out and not meet the needs of the members of a niche site like this that are going to be the ones spending ~$700 on basically a high-end iPod...

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