Head-Fi.org › Forums › Equipment Forums › Computer Audio › NEWS: Meridian Releases The Explorer Pocket-Sized USB DAC
New Posts  All Forums:Forum Nav:

NEWS: Meridian Releases The Explorer Pocket-Sized USB DAC - Page 58

post #856 of 993

Hmm... I did the same thing, then rescanned after plugging back in and it confirmed the change.  BTW mine is on OSX w/ 64 steps.  I guess it doesn't affect the absolute lowest settings (in my case that maps more like 7% - 15%).  

 

EDIT: Playing with it some more, my impression is perhaps step 1 may be considerably louder than it was stock but the gradations are producing smaller changes?  I tried pushing it to my threshold of pain and it was maybe at 5 full bars on an older recordings with minimal compression applied.  (20/64 steps).  It's hard to say, but before I may have gotten away with up to more like 4 to get that volume level. 


Edited by bobeau - 5/31/13 at 11:03am
post #857 of 993

my replacement shipped and should arrive in a couple of days.  Can't wait!

Reply
post #858 of 993
Got my replacement.
First 3 hours listening, sounds metallicky on headphone out but volume level control expanded nicely, I could hear fine on 70% master volume control compared to always set for 100% on the original.

Oh we'll, more hours to listen, I guess:)

Cheers
post #859 of 993
I got my Explorer replacement unit about a month ago - the sound is superb. I've been doing comparisons with both low res and high res music on my current desktop setup, which is a Centrance Dac Mini + V-LINK 192, versus the Meridian. The Meridian is far superior in musicality and accuracy and I could not be happier with the purchase. I also have a Dragonfly and the Meridian is superior in every way in my opinion.
post #860 of 993

Anyone think of using the explorer with something like this?

 

http://www.tomshardware.com/news/acer-iconia-w3-windows-tablet,23298.html

 

8 inch windows 8 tablet could make a cool, decently portable DAP running Jriver - also gets 8 hours a charge.

 

Any reason this might not work?

post #861 of 993

Really glad I've opted for the microStreamer - this thread has gone downhill in a big way since the output impedance issue became public. Personally, I need 24/192 like I need another week of Winter here in Oz .... 

post #862 of 993

Hi all. I have been out of the game for quite a while but am slowly getting back into it. I have an Heir 8A on order, and needed have recently sold my SACD player so am looking for a DAC for use with all my FLAC files. This seems to be a great option hence considering it; the only question I would have is if you would think it would be fine using the Explorer as both a USB DAC and an amp for the 8A, or to get the Explorer as a DAC and use it with a dedicated amp like the Heir Rendition 1?

 

Cheers

X

post #863 of 993
My advice is to give it a few weeks with the onboard amp in the Explorer before you rush out and spend more money - you shouldnt allow anything in this thread to dissuade you from the reality that your own ears provide the only measurements that really matter. If you do opt for a dedicated amp further down the line, at least you will know how well the hype around a given DAC/amp matches your own experience.
post #864 of 993

How can i check if I am going to get the V2 or de V1?

Is there a way the shop where I am going to get the Meridian Explorer can check that?

post #865 of 993
Quote:
Originally Posted by xenithon View Post
I have an Heir 8A on order, and needed have recently sold my SACD player so am looking for a DAC for use with all my FLAC files. This seems to be a great option hence considering it; the only question I would have is if you would think it would be fine using the Explorer as both a USB DAC and an amp for the 8A, or to get the Explorer as a DAC and use it with a dedicated amp like the Heir Rendition 1?

 

I'm sure the Explorer would do a servicable job of amplifying your 8.A. Given the level of your investment in the 8.A, you could also justify external amplification that's superior to what's in Explorer. But if you just add another portable amp, you have to wonder how much of an improvement you're going to get while making a redundant investment, and you'll be carrying around two amps, degrading the portability of your rig. If you were talking about a higher performance, non-portable desktop amp, that might make a more distinct and worthwhile performance improvement. Not to disparage the Rendition 1 in any way. And if you really wanted a supremely simple and portable USB DAC/amp sans 192 kHz capability, the Dragonfly is still a great choice.

 

I use Explorer primarily as a DAC in a desktop rig, feeding Asgard 2 amp, driving desktop speakers and HD-650. For me, Explorer's on-board amp is a "nice to have" for the rare occasion I do some serious mobile listening (otherwise I rely on RE-400 and my iPhone for mobile, casual listening). In one sense, Explorer is just the best $300 DAC I could find. But DACs in this price range are hard to find without integrated amps, which kind of sets up your question. I guess my answer is that I think Explorer suits your IEMs, but you could justify better, but make sure you are indeed getting a substantially better amp if you go that route. Put another way, I'm not sure it makes much sense to go with separate DAC and amp for a truly mobile application, especially when the DAC already has an amp. 

post #866 of 993

Thanks very much Aerocraft - some good perspective on the situation. To be honest, I am not going to use it as a "portable" rig - just at home - so portability is not a major factor. I do like what I have read about the DAC section of the Explorer, which is what attracted me in the first place (together with the affordability for what you get). It is either that or the miniStreamer on my shortlist. So I will likely end up with one of them fulfilling both requirements (DAC/amp) at first, and if required at a later stage, getting a dedicated, appreciably better amp - desktop or otherwise.


Edited by xenithon - 7/4/13 at 10:54pm
post #867 of 993

gs1000.gif

post #868 of 993

This thread is pathetic from all points of view. The HDVD800/600 has 42 ohms output impedance.

post #869 of 993
Quote:
Originally Posted by telecaster View Post

This thread is pathetic from all points of view. The HDVD800/600 has 42 ohms output impedance.

 

And for many fullsize cans, that wont be an issue - output impedance does become an issue for the owners of sensitive IEMs, a group much more likely to buy the Explorer than the HDVD thingamajig. 

post #870 of 993

^ Yeah. Let me explain this again:

 

  1. If the impedance of a headphone or IEM is well behaved - fairly flat, then there will no changes in steady-state frequency response. However FR is not necessarily the end-all.
  2. If the nominal impedance of the headphone is well above that of the output impedance of the device (a general "rule" is transducer impedance > x5 output impedance of amp), there shouldn't be any problem. There is no requirement per-se that output impedance of amplifiers be zero or close to zero. But in general, the lower the better (for reasons which should be obvious by now: compatibility for a greater number of transducers.)
  3. The "issues" begin to arise when the output impedance gets closer to the nominal impedance of the transducer.
  4. If the transducer has a really screwy impedance curve, there will be be an effect on FR according to how screwy the impedance curve is and how poor the impedance mismatch is. For example, the UERM impedance curve is all over the place. It's nominally 16 ohms. The output impedance of the MEv1 was not even close or approaching the nominal 16 ohms of the UERM, it was over it at about 45. The resulted in an FR bump at 1kHz and severe treble roll-off. This combination was a disaster (unless one actually preferred the resulting coloration in sound.) Other IEMs with low nominal impedence, but different impedance curves may even sound brighter from the ME.
  5. Even if the transducer's impedance curve was fairly flat, as the output impedance of the device approaches or even exceeds the nominal impedance of the transducer, we will begin to heard softer transients, poor bass control, muddy bass, lushness, syrup, etc. However, this is not necessary a bad thing. Some listeners prefer this and this type of sound does tend to fit Meridian's house sound, at least for their DACs.
  6. The HDVD800 with its 42 ohm output impedance will not be an issue with the HD600/800 since those headphones have high nominal impedance over 300ohms. 300 is way more than 42x5. Not gonna be a problem. I would however hesitate to use the HDVD800 with an HE500 headphone which has a impedance of ~37 ohms.
  7. In the end, it doesn't matter if you like the resultant sonic changes (assuming impedance mismatch) even if they are not accurate. If you like how it sounds, then stick with the MEv1.

 

Hopefully, this explanation is not too pathetic.


Edited by purrin - 7/13/13 at 10:39am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Computer Audio
Head-Fi.org › Forums › Equipment Forums › Computer Audio › NEWS: Meridian Releases The Explorer Pocket-Sized USB DAC