[pietcux]

THX!

 

[DrSheep]

Quote:

THX!

NP, and please give Chicco a pat on the head.

 

[Speakerphile]

Quote:

No, but Sony has the English manual online and I have it on PDF.  Here is the link (click over to "Resources".)
 
Product page: http://pro.sony.com/bbsc/ssr/cat-audio/cat-headphones/product-PHA1/
Direct English Manual link: http://pro.sony.com/bbsc/assetDownloadController?path=Asset Hierarchy$Professional$SEL-yf-generic-153707$SEL-yf-generic-153750SEL-asset-365181.pdf&id=StepID$SEL-asset-365181$original&dimension=original

 
Also, it is ridiculously simple to operate.  So the manual really isn't even necessary.  Thanks for the link though, I didn't know that was out there! 

 

[DrSheep]

Quote:

 
Also, it is ridiculously simple to operate.  So the manual really isn't even necessary.  Thanks for the link though, I didn't know that was out there! 

NP, but instead I found the block diagram most useful.

 

[Speakerphile]

Quote:

NP, but instead I found the block diagram most useful.

That is actually pretty cool that they share that info.  All of these devices should come with something like that.   

 

[Headphonejunky]

Will the verza be powerful enough for HD650?

 

[Craigster75]

Quote:

I never thought the Fiio E11 abd E17 would be in the same class as far as build quality. I could be wrong.

I'm not saying they have the same build quality, but my understanding is that, if you isolate the amp section of the E17 and compare to the E11, they are comparable.  Of course, the E17 offers much more.

 

[Craigster75]

Quote:

Will the verza be powerful enough for HD650?

IMO, probably not to drive to higher volumes.  IMO, it would pair better with a Centrance M8 where the amp has 10X the power.

 

[DrSheep]

Quote:

Will the verza be powerful enough for HD650?

It might not.  The HD650 is 300 ohms, so the VERZA will only get you 16mW max power...

 

[miceblue]

Quote:

Quote:

Will the verza be powerful enough for HD650?

It might not.  The HD650 is 300 ohms, so the VERZA will only get you 16mW max power...

Has that been confirmed? V-MODA only lists the power output at 32 Ω.
The JDS Labs C5 offers 49 mW at 300 Ω. o.0

 

[Headphonejunky]

I l

IMO, probably not to drive to higher volumes.  IMO, it would pair better with a Centrance M8 where the amp has 10X the power.

i like more power. As long as its clean.

 

[Headphonejunky]

Has that been confirmed? V-MODA only lists the power output at 32 Ω.
The JDS Labs C5 offers 49 mW at 300 Ω. o.0

Well i looked at both and Verza has 150mw x 2 out of USB and 130mw x 2 apple specific at greater than 32 ohms.

The jds labds rates in 4.146 Vrmsat 600ohms

 

[DrSheep]

Quote:

Has that been confirmed? V-MODA only lists the power output at 32 Ω.
The JDS Labs C5 offers 49 mW at 300 Ω. o.0

Are you sure it is 49mW?  I am not sure what happened and I could be wrong, but I can't get the same calculations listed on their spec list...
 
Off topic and math heavy:
 
Formulas:
 
Vrms = 0.707 x Vmax; Vmax = Vrms / 0.707
Vpp = 0.3535 x Vrms
V = IR; I = V/R
P = IV = (V/R) x V = V^2 / R
So Pmax = (Vrms/0.707)^2 / R
and Pavg = Vrms^2 /R
 
Here is what I am getting for the C5 based on their specs, and you may notice something is not right with the numbers at 150 ohms:
 

R	Vrms	Vpp	Vmax	Pmax	Pavg
32	1.010	0.357	1.429	0.064	0.032
150	3.337	1.180	4.720	0.149	0.074
600	4.146	1.466	5.864	0.057	0.029

 

[DrSheep]

Quote:

Well i looked at both and Verza has 150mw x 2 out of USB and 130mw x 2 apple specific at greater than 32 ohms.

The jds labds rates in 4.146 Vrmsat 600ohms

150 mW * 32 / 300 = 16 mW and only 9mW at 600 ohms.  Either way the C5 has way more power.

 

[miceblue]

Quote:

Quote:

Has that been confirmed? V-MODA only lists the power output at 32 Ω.
The JDS Labs C5 offers 49 mW at 300 Ω. o.0

Are you sure it is 49mW?  I am not sure what happened and I could be wrong, but I can't get the same calculations listed on their spec list...
 
Off topic and math heavy:
 
Formulas:
 
Vrms = 0.707 x Vmax; Vmax = Vrms / 0.707
Vpp = 0.3535 x Vrms
V = IR; I = V/R
P = IV = (V/R) x V = V^2 / R
So Pmax = (Vrms/0.707)^2 / R
and Pavg = Vrms^2 /R
 
Here is what I am getting for the C5 based on their specs, and you may notice something is not right with the numbers at 150 ohms:
 

R	Vrms	Vpp	Vmax	Pmax	Pavg
32	1.010	0.357	1.429	0.064	0.032
150	3.337	1.180	4.720	0.149	0.074
600	4.146	1.466	5.864	0.057	0.029

No I'm not sure, but this person might be. The calculation for the power at 32 Ω was nearly spot-on. That user is also an active poster in the sound science thread so I feel confident with the calculations. But no I'm not 100% certain.
http://www.head-fi.org/t/647838/jds-labs-c5-portable-amplifier-appreciation-discussion-thread-check-1st-post-for-review/450#post_9233131
Quote:

I get these results:

 16 ohms: V = 0.509 Vrms, Ipeak = 45.0 mA, P = 16.2 mW 32 ohms: V = 1.018 Vrms, Ipeak = 45.0 mA, P = 32.4 mW 50 ohms: V = 1.591 Vrms, Ipeak = 45.0 mA, P = 50.6 mW 62 ohms: V = 1.973 Vrms, Ipeak = 45.0 mA, P = 62.8 mW 150 ohms: V = 3.337 Vrms, Ipeak = 31.5 mA, P = 74.2 mW 300 ohms: V = 3.836 Vrms, Ipeak = 18.1 mA, P = 49.0 mW 600 ohms: V = 4.146 Vrms, Ipeak = 9.8 mA, P = 28.6 mW