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NEWS: Meridian Releases The Explorer Pocket-Sized USB DAC - Page 37

post #541 of 992

Agreed. It seems 16 ohm plus earphones drives just fine out of the Meridian. In fact sounds great. I don't plan on sending mine back any time soon. I don't have any issue with the high impedance out at all.

post #542 of 992

Glad to hear that you found a combination to your liking, feverfive - imagine how you would have felt if you had simply sent it back to Todd only to see reports from others that they were having no issues with their phones .....  :D

post #543 of 992

And I should add, one should just sell off the headphone and buy another if does not sound right with the explorer! ;)

post #544 of 992

I hope it's okay to mention this, but I received word from Meridian, through the dealer I purchased through, that they know about and are addressing the low-impedance concern. In particular:

Quote:
... a few weeks ago we made a running change in manufacture to broaden compatibility ...

 

I don't know the specifics of what this change has been, but I've already inquired Meridian about it.

post #545 of 992

Did Meridian say anything about replacing the units already sold? 

post #546 of 992
Quote:
Originally Posted by Aerocraft67 View Post

Did Meridian say anything about replacing the units already sold? 

 

They invited customers who've bought the Explorer to contact them with the unit S/N, dealer used, etc. if they feel their experience is being affected by the headphones they're using.

 

Edit: They did not specifically mention replacements, to answer your question more directly. Not that I would expect them to publicly offer such. The product isn't "defective". But it seemed clear they want happy customers.


Edited by teofilrocks - 3/8/13 at 7:52pm
post #547 of 992
Quote:
Originally Posted by teofilrocks View Post

 

They invited customers who've bought the Explorer to contact them with the unit S/N, dealer used, etc. if they feel their experience is being affected by the headphones they're using.

 

Edit: They did not specifically mention replacements, to answer your question more directly. Not that I would expect them to publicly offer such. The product isn't "defective". But it seemed clear they want happy customers.

 

Did they specify what e-mail address or phone number to contact them at?

post #548 of 992
Quote:
Originally Posted by vrln View Post

Indeed. And it´s important to remember that quoted impedance is usually just the average. With dynamic drivers the plot is usually more stable, with BA´s it can go pretty wild. With the Explorers output impedance it´s no wonder XBA-40 sounds horrible, frequency response will be all over the place. It won´t be accurate with MDRXB90 either though, but at least better than with the XBA-40. With 250-300 ohm headphones one will finally hear the headphones as they were designed.

 

As I was the one who tested the xba-40 with the Explorer, I do have to be clear, they did not sound terrible, they sounded like they were missing their magic. The full spectrum of sound wasn't quite there. Without hearing what the xba-40 is capable of, one could be quite satisfied with what they were hearing. Granted the MDRXB90 did sound better, but not by much.

 

I still think the Explorer is a good unit, but one that is going to be very picky about what you use with it, unless you USE AN EXTERNAL AMP. 

As a DAC it seems to work flawlessly.

post #549 of 992
Yes, as a DAC it's great.
post #550 of 992
Quote:
Originally Posted by Tyll Hertsens View Post

 

Regardless of the efficiency, the damping factor will remain the same, which is to say poor. The headphones will not be as tight, clear, and impactive if the output impedance is high.

 

I'm not eager to pursue "compensation" with Meridian, since I don't feel directly impacted by the impedance issue, given my high-Z phones and plans to listen primarily through an outboard amp. And the hassle may not be worth the outcome.

 

That said, the above quote gnaws at me, implying unnecessary performance degradation at any Z. And the high output Z kerfluffle does depreciate the value of my investment considerably more than "normal,"even if its impact on my application is negligible, and we're ultimately talking about a $300 device. And maybe I'll fancy low-Z phones someday. So lots to consider.

 

Anyway, gratifying to see some responsiveness here, which reduces overall concerns about dubious implementation and integrity. Looking forward to seeing it through. 

post #551 of 992
Quote:
Originally Posted by teofilrocks View Post

I hope it's okay to mention this, but I received word from Meridian, through the dealer I purchased through, that they know about and are addressing the low-impedance concern. In particular:

 

[quote]... a few weeks ago we made a running change in manufacture to broaden compatibility ...[/quote]

 

I don't know the specifics of what this change has been, but I've already inquired Meridian about it.

 

This is what I've heard as well. Sell through at stores is very high, units in current production have the change. Next shipment through retailers should have the change.  Should be less than a month. Likely anything currently on backorder will be the new units----educated guess.

 

Don't know what return/exchange policies will be.

post #552 of 992

I'm finally using one now - after hearing it at CES briefly.

 

So far, when I got back to the HRT microStreamer (using my trust JH Audio JH-13's and Sennheiser HD 25-1 IIs) I find the microStreamer, with these cans and to my ears, far more seductive in its presentation.  Meaning: I get more of an emotional connection to the music.  The Meridian's detail retrieval is fine, but it sounds like great Hi-fi to me.  The HRT sounds more like music.

 

I'll report more soon...

post #553 of 992

With those two low impedance headphones you won´t be listening to their original voicing at all on the Meridian Explorer due to the high output impedance. The HRT on the other hand has an output impedance of 0,5 so frequency response is left as originally designed.

post #554 of 992
Quote:
Originally Posted by attilahun View Post

This is clearly the beginning of the micro dac revolution. 

Audioquest blew the doors open and now we're going to see a slew of similar products.

 

Pretty soon they might even start embedding them into the source themselves! Like, could you imagine how convenient it would be to have a DAC built directly into your laptop or iPod?

post #555 of 992
Quote:
Originally Posted by vrln View Post

With those two low impedance headphones you won´t be listening to their original voicing at all on the Meridian Explorer due to the high output impedance. The HRT on the other hand has an output impedance of 0,5 so frequency response is left as originally designed.

 

Exactly.

 

My experience with the Meridian could have been completely different with transducers other than the HE-500 or UERM. I found the Meridian quite adequate with the V-Moda M80, which has a nominal impedance of around 30ohms, but its curve is actually fairly level never rising above 35ohms throughout the band. Other headphones with highish impedance, such as the HD650 or HD800 would be less affected. The ER-4S would probably sound brighter than usual given its lowish impedance and rising curve. This is why certain people felt the Meridian was less bassy than the Dragonfly with other IEMs.

 

Using the Meridian strictly as a DAC would yield the most consistent results.

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