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WOO-HOOOO... WA7 "fireflies"!!! - Page 32

post #466 of 1413

Anyone still waiting for their upgraded tubes to ship? I ordered over 3 months ago. It went out of stock for a while, but they confirmed multiple times that they received stock and they will ship soon. They haven't replied to my e-mails asking for an update. Will call soon, but slightly irritated.

post #467 of 1413
Quote:
Originally Posted by groovyd View Post

no issue with crosstalk... one interesting thing i noticed the other day however is after powering off the WA7 it continues to play at volume for a good 30 seconds.  Definitely no shortage of reserve power in those supply caps.  Is this normal for a tube amp?

Yes, it is an interesting property that tube amps are capable of running until the storage caps are depleted or the tubes cool below a useful operating temp, which ever occurs first.

post #468 of 1413

I've found it to be normal of my tube equipment.  I wonder about solid state... there might be some? 

post #469 of 1413
Quote:
Originally Posted by qbroid View Post

I doubt since their website provides driver for windows. It is said that you need to purchase a spceial license from Apple to get external DAC works for apple device

 

It is indeed possible to run an external amp that draws significant power with an iPad (dock and lightning versions), at least with some modifications.  I'm not the expert, but there are threads on this site..  I'll post if I can locate. 

 

The trick is to use an Apple Camera Adapter. There may be other ways that are non-Apple.  

 

But you have to break the power line so that the iPad is not powering it. Then supply power externally to the amp by other means. A self-powered hub has been mentioned for this. 

 

(Some products like FiiO E17 have an option to set if it will "charge through USB."  But this setting didn't make it work right on my friend's setup, Yet the E7 works).  

 

The iPhone is a different matter.  It is hobbled deliberately by Apple. That is where expensive licensing seems to be a roadblock. 


Edited by Stoney - 7/4/13 at 12:02pm
post #470 of 1413

Here is one thread with early info on an iPad working with DACs, some requiring USB hubs.  

http://www.head-fi.org/t/634555/ipad-mini-camera-connection-kit-dac/15#post_9015327

Scroll downward from this post on. One revelation is that some DACs work even if the hub is unpowered.  The E17 might be one.  The reason seems to be that two conditions must be met: the power drawn by the DAC must be below a certain threshold (NOT true of the WA7), and the reported power draw (from the device flash) must be below a certain threshold (this is why the E17 won't work, but an intervening hub will... the E17 reports more power than it actually requires, but the hub doesn't).  

 

Here is an early setup with powering details.  Not a WA7 though. 

http://www.head-fi.org/t/587912/fiio-e17-alpen-first-impression-final-thought/990#post_8108286

 

I am sure there are later threads, probably which address the WA7. 

 

Try browsing from this post onward: 

http://www.head-fi.org/t/507559/list-of-dacs-that-work-with-ipad/675#post_9439494


Edited by Stoney - 7/4/13 at 12:23pm
post #471 of 1413
Quote:
Originally Posted by Stoney View Post

Here is one thread with early info on an iPad working with DACs, some requiring USB hubs.  
http://www.head-fi.org/t/634555/ipad-mini-camera-connection-kit-dac/15#post_9015327
Scroll downward from this post on. One revelation is that some DACs work even if the hub is unpowered.  The E17 might be one.  The reason seems to be that two conditions must be met: the power drawn by the DAC must be below a certain threshold (NOT true of the WA7), and the reported power draw (from the device flash) must be below a certain threshold (this is why the E17 won't work, but an intervening hub will... the E17 reports more power than it actually requires, but the hub doesn't).  

Here is an early setup with powering details.  Not a WA7 though. 
http://www.head-fi.org/t/587912/fiio-e17-alpen-first-impression-final-thought/990#post_8108286

I am sure there are later threads, probably which address the WA7. 

Try browsing from this post onward: 
http://www.head-fi.org/t/507559/list-of-dacs-that-work-with-ipad/675#post_9439494

I am longing for a WA7 and HD 650 as an "upgrade" from the Aune T1 and HD558 I'm currently using, but I play almost everything from an iPad 3, so I need this question answered. The Aune also gives a "low power" reading if you connect the USB cable directly from the CCK to the DAC. I added a cheap Belkin powered USB hub between the CCK and the USB input of the Aune and it works with no problem. If anyone knows for sure if this will work with the WA7 Please post!
Edited by teb1013 - 7/4/13 at 12:47pm
post #472 of 1413

Is the jailbreak package for the iphone to make the CCK work possibly a remedy?

post #473 of 1413

Not needed for the iPad.  Power draw is a real consideration and jailbreaking won't help fool the hardware. 

post #474 of 1413
Quote:
Originally Posted by ariesq View Post

Anyone still waiting for their upgraded tubes to ship? I ordered over 3 months ago. It went out of stock for a while, but they confirmed multiple times that they received stock and they will ship soon. They haven't replied to my e-mails asking for an update. Will call soon, but slightly irritated.

I found this online, I believe they are the same, I order a pair and so far they sound very nice.

 

http://www.cryoset.com/catalog/product_info.php?manufacturers_id=10&products_id=280&osCsid=714a5b133caa4007bcfdfa0eb4de7e37

 

Hope it helps.

post #475 of 1413
Quote:
Originally Posted by teb1013 View Post


I am longing for a WA7 and HD 650 as an "upgrade" from the Aune T1 and HD558 I'm currently using, but I play almost everything from an iPad 3, so I need this question answered. The Aune also gives a "low power" reading if you connect the USB cable directly from the CCK to the DAC. I added a cheap Belkin powered USB hub between the CCK and the USB input of the Aune and it works with no problem. If anyone knows for sure if this will work with the WA7 Please post!

You can also use the analog input in the WA7, getting a Y cable to run from the Ipad headphone jack out to the RCA analog to the WA7, Its not digital but it will work, at least until you get all of the items you need to try to make it digital. 

 

Its an option..

post #476 of 1413
Quote:
Originally Posted by qbroid View Post

I doubt since their website provides driver for windows. It is said that you need to purchase a spceial license from Apple to get external DAC works for apple device

 

Some DACs will run just fine in this config:

 

http://www.head-fi.org/t/670662/this-apple-usb-hub-will-work-with-ipad-4-with-cck-dac

post #477 of 1413
Quote:
Originally Posted by ozz007 View Post

You can also use the analog input in the WA7, getting a Y cable to run from the Ipad headphone jack out to the RCA analog to the WA7, Its not digital but it will work, at least until you get all of the items you need to try to make it digital. 

Its an option..

I really want the DAC function of the WA7. Otherwise I could use a line out connector which would avoid "double amping" which I think using the headphone out would result in. Technically I guess could use the Aune (which works with the CCK) as a tube DAC bypass the Aune SS amp, and get a WA2 or something like that as a tube amp, but the simple elegant WA7 is what I want!
post #478 of 1413

With the iPad 3, I'm rather satisfied with the built-in DAC. However, that is with modest portable amps.  With the WA7, and no longer trying a portable setup, I too would try to get digital out from the iPad yet bypass the feature that balks if the DAC draws too much current (using the Camera Connection Kit and some modification or hub to insert power).  

post #479 of 1413
Quote:
Originally Posted by Stoney View Post

I've found it to be normal of my tube equipment.  I wonder about solid state... there might be some? 

 

The ss amps I use for my HT do this.  Same cause: big caps as part of the power supply.  I would suppose one function is to supply dynamic power for transients.

post #480 of 1413
Should the impedance switch be in the High or Low position for the LCD-2?
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