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iDSD micro Crowd-Designed! Phase 3: Show a little leg. What is "it"? (page 132) - Page 62

Poll Results: What % of your listening is Desktop vs Portable? (click on ONE answer please)

Poll expired: Apr 22, 2014  
  • 22% (30)
    Desktop (100%)
  • 36% (49)
    Desktop (75%) & Portable (25%)
  • 18% (25)
    Desktop (50%) & Portable (50%)
  • 17% (24)
    Desktop (25%) & Portable (75%)
  • 5% (7)
    Portable (100%)
135 Total Votes  
post #916 of 1987
Beat OTW! Yet. xD always like the one size fits all idea biggrin.gif

PS: I hope those switches are not too deep that we need a pin or something to adjust it? Hope big or small fingers will do the tricks biggrin.gif
post #917 of 1987
Thread Starter 
Quote:
Originally Posted by BillsonChang007 View Post

Beat OTW! Yet. xD always like the one size fits all idea biggrin.gif

PS: I hope those switches are not too deep that we need a pin or something to adjust it? Hope big or small fingers will do the tricks biggrin.gif

Hi,

 

See a few pages back about switches we chose. Very high-quality switches - we showed you pics and everything.

 

All good.

post #918 of 1987
post #919 of 1987
Quote:
Originally Posted by iFi audio View Post

Hi,

See a few pages back about switches we chose. Very high-quality switches - we showed you pics and everything.

All good.

Saw that was just making sure it wasn't too hard to play with but the last line convinced me biggrin.gif
post #920 of 1987
Quote:
Originally Posted by BillsonChang007 View Post

Beat OTW! Yet. xD always like the one size fits all idea biggrin.gif

PS: I hope those switches are not too deep that we need a pin or something to adjust it? Hope big or small fingers will do the tricks biggrin.gif
 
Quote:
Originally Posted by iFi audio View Post
 

Hi,

 

See a few pages back about switches we chose. Very high-quality switches - we showed you pics and everything.

 

All good.

 

And I'm pretty sure you've considered that this is a mobile device, so they should be resistant to possible damages when placed in a bag, or similar!

 

PS: Being Italian I won't comment on football!!!!!

post #921 of 1987
Thread Starter 
Quote:
Originally Posted by guglia72 View Post
 

 

And I'm pretty sure you've considered that this is a mobile device, so they should be resistant to possible damages when placed in a bag, or similar!

 

PS: Being Italian I won't comment on football!!!!!

 

Hi,

 

Yes, it comes with a felt pouch like the nano iDSD and iCAN.

 

It is pretty robust and the nanos have shown that they work well for the mobile user - as it has very well field tested around the world in all different climes!

 

No comment on football...win or lose after tonite. :popcorn: We shall stay mum. 

post #922 of 1987

This is brilliant!  I usually find the typical one-toggle gain switch too crude to even bother with.  I'm still catching up on the thread a bit, but am definitely on board!  How do we pre-order this thing?

 

------------------------------------------------------------------------------------------------------------------------------------------------------------

 

Outta This World #2

 

Perfect Headphone Pairing:

With Turbo/Normal/Eco + iEMatch

 

Background

In any audio system, the matching between the amplifier and the transducers is arguably the most crucial.

 

In the loudspeaker market, speaker + amplifier matching is typically well-matched.

i.e. low-powered amplifiers are paired with high-efficiency speakers and vice versa.

 

HOWEVER, in the headphone market, the gamut of headphones paired with headphone amplifiers is very inconsistent. This often leads to poor-matching from not enough power to drive headphones (typically: unimpressive sonics) to far too much power to drive in-ears (typically: unusable volume control + excessive hiss).

 

Explanation

In the headphone market, we went through virtually every current production headphone out there and what we found shocked us.

 

Running the rule over current production headphones, we found that there is a massive 53dB difference between the most efficient In-Ear-Monitors (IEMs) and the most inefficient headphones. This is an absolutely enormous range (think of this as the difference in loudness between a disco and a quiet library so this is NOT subtle.)

 

At one end of the spectrum is the HiFi Man HE-6 which is as hungry as things go. Rated at 90dB/V, this “Hummer” of a headphone needs well over 3,000mW to drive properly to good levels. Let’s categorise these as low-efficiency headphones.

 

BTW, for the K1000 die-hards out there, it is the "Mack juggernaut" as it is rated crazily low at 84dB/V!!!

 

At the other end of the spectrum are super-efficient IEMs. The Sennheiser IE800 is rated at 143dB/V and even driven by the iPhone’s paltry 15mW, you can only dial-up to 50% of its digital volume before it starts to encroach upon ear-damaging levels! Let’s categorise these as ultra-sensitive IEMs.

 

 

It is not surprising to find that we had yet to come across a headamp that can deal with this gamut let alone a DAC headamp that is portable that can deal with this full spectrum of headphones!    :regular_smile :

 

 

 

How does this benefit the listener?

OTW #2 is the perfect-match of headphones with the micro iDSD.

 

For the very first time ever, from the Sennheiser IE800 > HiFi Man HE-6, the listener is able to “dial-in” the perfect match using a combination of the micro iDSD’s Power Modes + iEMatch.

 

For example:

HE-6:                                     Power mode = Turbo     and        iEMatch = Off

IE800:                                   Power mode = Eco         and        iEMatch = Ultra-Sensitivity

 

These are of course, the two polar opposites so with any other headphone or in-ear-monitor, then adjust the different settings under Power mode + iEMatch to suit.

 

Summary Table of Power Mode + iEMatch


Technology Description  Remarks Approx Playing Time
HP Amp Power      
•         Turbo mode 8.0V/4,000mW@ 16Ohm  > 1000 mW @ 64 Ohm 6 hours
•         Normal mode 4.0V/1,000mW@16Ohm > 500 mW @ 32 Ohm 8 hours
•         Eco mode 2.0V/250mW@ 16Ohm > 250 mW @ 16 Ohm 12 hours
       
Technology Description  Remarks  
iEMatch      
  •         Ultra-Sensitivity eg Sennheiser IE800/Shure SE535  
  •         High-Sensitivity eg Ultimate Ears UE900/Sennheiser Momentum  
  •         Off eg On-Ear or Over-Ear headphones  
 

Once this has been dialled-in to suit the listener, then the analogue volume control of the micro iDSD can be cranked up to 12 o’ clock or more where it will really start to bloom and let your music shine through.

 

ps. For Kugino. If England loses today, we may not have upload OTW#2 for one week. So we thought we'd better get this Outta The Way (OTW)  :tongue_smile: 

This matching of the micro to the actual headphones/IEMs used is a REALLY nice feature.


Edited by Lookin4Treble - 6/19/14 at 7:21am
post #923 of 1987
Quote:
Originally Posted by technobear View Post


Actually the iFi post says first batch of several hundred wink.gif

My guess is that they have a stock of unobtainium components and once they're gone, the next best available equivalent will be used.



Edit: ps. what is this "World Cup" I keep hearing about? confused.gif

that makes sense as unobtainium helps increase the dynamic range in mp3s

post #924 of 1987
I'm not bothered by football. But my god is the gain implemented well!

Really hope to review one of these beauties
post #925 of 1987
Thread Starter 
Quote:
Originally Posted by pekingduck View Post
 

Couldn't be happier for us IEM users! What are the output impedances at different IEMatch settings, by the way?

 

Hi,

 

1. Not only IEMs as some headphones out there primarily designed for iPhones and such also benefit from iEMatch. Not just ultra-sensitive IEMs will be catered for.

 

2. See below:

 

iEMatch - Output Impedances
 

Off                             < 1 Ohm
High-Sensitivity      < 4 Ohm 
Ultra-Sensitivity      < 1 Ohm

 

4 Ohm is very low by any standard. And < 4 Ohm is still more than low enough for Headphones >= 16 Ohm to have less than +/-1dB response variation (usually considered inaudible).

 

Thanks.


Edited by iFi audio - 6/19/14 at 8:41am
post #926 of 1987
Bugger, England lost, we are not going to see anymore update anytime soon.
post #927 of 1987
Quote:
Originally Posted by deskmate View Post

Bugger, England lost, we are not going to see anymore update anytime soon.

I'm guessing the guys from Uruguay are going to have a harder time getting hold of iFi products for a while biggrin.gif
post #928 of 1987
Hi, I want to see under side too. smily_headphones1.gif
Edited by rickyleelee - 6/20/14 at 1:20am
post #929 of 1987
Thread Starter 
Quote:
Originally Posted by deskmate View Post

Bugger, England lost, we are not going to see anymore update anytime soon.

 

Hi,

 

Bugger is right!

 

But in the cold light of day and with a fresh pair of eyes (instead of beer goggles), we knew it wasn't meant to be.

 

Some manufacturer friends of ours have asked us to contact them "after the World Cup" so we are going to contact them today.  :D

 

Back to work - the micro iDSD is on track for early July.

 

Now that England is out, may the best team win. No sore losers here.

 

Thorsten is in a good mood so we'll see what he can do for you guys.

 

Later!

post #930 of 1987
Quote:
Originally Posted by iFi audio View Post
 

 

Hi,

 

Bugger is right!

 

But in the cold light of day and with a fresh pair of eyes (instead of beer goggles), we knew it wasn't meant to be.

 

Some manufacturer friends of ours have asked us to contact them "after the World Cup" so we are going to contact them today.  :D

 

Back to work - the micro iDSD is on track for early July.

 

Now that England is out, may the best team win. No sore losers here.

 

Thorsten is in a good mood so we'll see what he can do for you guys.

 

Later!

he might not be in such a good mood when the americans beat germany next week ;)

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