Head-Fi.org › Forums › Equipment Forums › Portable Source Gear › iBasso DX90. Dual Sabre, 1st page to reformat latest FW download & general information . . . . . . . . . .
New Posts  All Forums:Forum Nav:

iBasso DX90. Dual Sabre, 1st page to reformat latest FW download & general information . . . . .... - Page 98

post #1456 of 7275
Quote:
Originally Posted by vkalia View Post
 

 

Actually, while it is true that power is a function of voltage and current (W = V*A), the actual variables that affect power output are the load (impedance curve of the headphone) and the current that the amp can provide at that load (assuming, for a certain volume setting, that the output voltage is constant).     It isnt really possible for 2 amps to deliver the same power output and have different current levels, unless the impedance of the headphone is changing from one amp to the other - if 2 amps are providing different current, they are providing different output power.

 

A powerful amp does make a difference b/c the impedance of even sensitive headphones may not be linear - nor may it be fully resistive in nature.   As such, the ability of an amp to handle varying loads does affect the output sound.   Which is why a relatively inexpensive, low-current, high-global-feedback op-amp based unit is not going to have the same control over a difficult load (ie, varying impedance, not low sensitivity) as a beefier amp with more current capabilities.    In other words, it isnt about the amount of current - it is about ability to handle changes in current requirements due to varying loads - especially once phase issues caused by L/C components of the load enter the picture.   

 

It's more a function of the output impedance of the amp, not its horsepower as it were, that determines its ability to handle the varying input impedance of the monitor. My low impedance Merlins aren't suddenly better with a high impedance amp, just because it's powerful (ie they work better with a Clip+ than a HiFiMan 602). That's what allows an amp to handle varying loads. A sufficiently low output impedance. 

post #1457 of 7275

DELETE


Edited by Mython - 4/1/14 at 3:55pm
post #1458 of 7275
Quote:
Originally Posted by jj69 View Post

 

In my experience, the best DAP for use in the car is still the Sansa Clip+ running Rockbox.  Note that the Clip+ has a button layout that is slightly better than the layout on the (otherwise very similar) Clip Zip.  It's hard to explain, but the Clip+ buttons are just slightly better laid out, and just that much easier to manipulate with one hand without having to look at them.  The only downside of the Clip+ is its tiny screen.  You do have to take your eyes off the road for a few seconds to look at the screen if you're scrolling through folders to choose an album/song, and the Clip's tiny 1" screen is not ideal.  I would suggest using one of the simpler Rockbox themes, and a thick bold font (Nimbus is great).  The fact that the Clip+ only costs $30 doesn't hurt either. 

 

This doesn't make sense to me.  I'm looking for a higher quality option for the car as well, and it seems like the only difference between the two is that the Clip+ has a tiny screen.  The DX90 will have buttons as well...it should be easy enough to skip/backup/play/pause with it while driving.  To find something in the library you're stuck with needing to pull over to be safe either way.

 

If you're looking for hardware controls it seems like the X5 will be the way to go.  At least then you're about at the same level of an ipod, excluding perhaps the fact that most head units integrate directly with the ipod now.  


Edited by endus - 3/25/14 at 1:34pm
post #1459 of 7275
Quote:
Originally Posted by endus View Post
 

 

This doesn't make sense to me.  I'm looking for a higher quality option for the car as well, and it seems like the only difference between the two is that the Clip+ has a tiny screen.  The DX90 will have buttons as well...it should be easy enough to skip/backup/play/pause with it while driving.  To find something in the library you're stuck with needing to pull over to be safe either way.

 

If you're looking for hardware controls it seems like the X5 will be the way to go.  At least then you're about at the same level of an ipod, excluding perhaps the fact that most head units integrate directly with the ipod now.  

 

Yes you are right about most head units integrating with iPods.

 

A few things though, no one mentioned those facts but there are a few hurdles one needs to get over:

 

1 - The most bang for the buck is to acoustically insulate your car (outside ambient noise), without that you might as well inject noise in your awesome player, the road will be louder than the music (you'll loose the details very quickly).

2 - The next step; the sound system. Even if you have a very good hi-res player, if you amplifier and speakers in your car are crapy that is what you are going to get.

3 - Last using a player on the AUX input with your eyes off the road is a recipe for disaster. No amount of sophistication from your fancy player will make you happy if you crash into a tree.

 

For a decent and safe solution, you alternative is either a sound system that integrates with a popular player or an aftermarket interfacing unit that will interface with your head unit through the CD changer input and use a popular player (that is what I did in my case having no choice with the dealer installed system).

 

If you are going to play a long shuffle list and you do not intend to change tunes at any moment except when you are on park, then the AUX solution is acceptable.


Edited by musicheaven - 3/25/14 at 4:09pm
post #1460 of 7275

Apple CarPlay may be an option in the future.

That's if you have an iphone may be the safest option I've seen.

http://www.cnet.com/products/apple-carplay/

post #1461 of 7275

https://www.facebook.com/MingoHeadphone

preoder start on hong kong side

post #1462 of 7275

The pre-order price is quoted as $2900, surely not USD ?!? Or is this a typo and the price more likely to be $290 ? 

 

Quote:

Originally Posted by sslim3883 View Post
 

https://www.facebook.com/MingoHeadphone

preoder start on hong kong side

post #1463 of 7275
Isn't this 2,900 of Hong Kong Dollars equivalent of ca. USD 375?
post #1464 of 7275
Quote:
Originally Posted by smial1966 View Post
 

looks like HKD (equi to approx 230gbp or 375usd)

post #1465 of 7275
Quote:
Originally Posted by smial1966 View Post


This is not a typo and really $2900 "Hong Kong Dollars" which is around 300+ US Dollar if im not mistaken..
post #1466 of 7275
Quote:
Originally Posted by sslim3883 View Post
 

https://www.facebook.com/MingoHeadphone

preoder start on hong kong side

 

Just curious what'sthe correlation of that headphone with DX90?

post #1467 of 7275
Quote:
Originally Posted by headwhacker View Post
 

 

Just curious what'sthe correlation of that headphone with DX90?


Mingo is a headphone shop

Mingo, Jaben and DMA are all taking preorders if I am not mistaken.. the estimated delivery date is mid-April...

 

....

 

there are too many DAPs gonna come out soon... so confusing...

post #1468 of 7275

For the UK people. I got in touch with advancedmp3 and they said that it is highly likely that they will be stocking the DX90 (because of the success of DX50) but they don't have an official date yet. But having said that, they used to get 100 of the 500 DX50 batches in the past, so hopefully they will be able to get hope of some from the 1000 first batch DX90 soon! I rather not deal with custom/EMS myself...

post #1469 of 7275
Advancedmp3players aren't cheap. When I got my dx50 I bought directly from ibasso and chose EMS shipping. I didn't have to pay any import duties at all.
post #1470 of 7275
Quote:
Originally Posted by Dumbleroar View Post

Advancedmp3players aren't cheap. When I got my dx50 I bought directly from ibasso and chose EMS shipping. I didn't have to pay any import duties at all.

Thanks for the headsup :)

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Source Gear
Head-Fi.org › Forums › Equipment Forums › Portable Source Gear › iBasso DX90. Dual Sabre, 1st page to reformat latest FW download & general information . . . . . . . . . .