or Connect
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Meridian Prime Headphone Amplifier Review
New Posts  All Forums:Forum Nav:

Meridian Prime Headphone Amplifier Review - Page 11

post #151 of 287

Excellent riposte Radio_head. Particularly enjoyed the curmudgeon reference. 

 

:beerchug:

 

Quote:

Originally Posted by Radio_head View Post
 

DUDE, I think it's JUST YOU.  I have NO idea who you THINK you are, but you MUST be someone who likes POPPING balloons JUST to see them DEFLATE.

 

#overlysensitivemuch #rememberotherstuffonlybothersyoulikecenterstageissues #curmudgeonlyaudiophileiscurmudgeon

post #152 of 287
Quote:
Originally Posted by smial1966 View Post

Joke's on you, friend.
post #153 of 287

How so friend? Please explain. 

 

Quote:

Originally Posted by Maxvla View Post


Joke's on you, friend.
post #154 of 287
Thread Starter 
Quote:
Originally Posted by smial1966 View Post

How so friend? Please explain. ​
 

No, don't explain here. Do it via PM if you feel you must.

 

It's getting personal here, guys, so enough with that.

post #155 of 287

Sure thing, no offence intended. :redface:

 

Quote:

Originally Posted by jude View Post
 

No, don't explain here. Do it via PM if you feel you must.

 

It's getting personal here, guys, so enough with that.

post #156 of 287

Back on track...

 

Have any owners and/or thread contributors heard the Prime with the additional Power Supply? If so, is it worth the additional cost and what sonic attributes does it impart?

 

Thanks.  

post #157 of 287
Quote:
Originally Posted by smial1966 View Post
 

Back on track...

 

Have any owners and/or thread contributors heard the Prime with the additional Power Supply? If so, is it worth the additional cost and what sonic attributes does it impart?

 

Thanks.  

 

Since it is very expensive I doubt there are many out there who have heard it. Typically a better power supply has the biggest impact on the bass reproduction giving more precision and slam. It may also make the sound more relaxed with a more solid localization of the instruments.

 

I wonder why Meridian bothered to make this product with two different power supplies. I think they should have stuck to one product with a good power supply and left it at that. I don't think it is nice to leave the people with the standard power supply speculating on what might have been.

post #158 of 287
I'd like to listen to the Prime with the power supply but I haven't seen one that I could purchase outright.
post #159 of 287
Quote:
Originally Posted by Radio_head View Post
 

DUDE, I think it's JUST YOU.  I have NO idea who you THINK you are, but you MUST be someone who likes POPPING balloons JUST to see them DEFLATE.

 

#overlysensitivemuch #rememberotherstuffonlybothersyoulikecenterstageissues #curmudgeonlyaudiophileiscurmudgeon

Let's just say I agree, and leave it at that.


Edited by Chris J - 12/29/13 at 11:52am
post #160 of 287
Quote:
Originally Posted by ticos442 View Post
 

I agree, a direct AC cable connection with a separate box would have been my preference.  I had to get creative to plug the wall wart into my Panamax M51100-PM power conditioner, as I unfortunately have other wall warts plugged into it.  However, once I was able to find room for it, I have forgotten about it and enjoyed the sound coming out of the Prime.

 

In case you or others might be interested, I have just confirmed that Channel Islands Audio will build a custom 12V version of their VDC power supply which could be used to replace the Prime's wall wart.  I suspect that you are already getting most of the benefits of the $1250 optional Meridian power supply with your $199 iFi iUSBPower; adding the $329 Channel Islands unit should close the gap completely, although in an admittedly less elegant way.

post #161 of 287
Quote:
Originally Posted by GaryB View Post
 

 

In case you or others might be interested, I have just confirmed that Channel Islands Audio will build a custom 12V version of their VDC power supply which could be used to replace the Prime's wall wart.  I suspect that you are already getting most of the benefits of the $1250 optional Meridian power supply with your $199 iFi iUSBPower; adding the $329 Channel Islands unit should close the gap completely, although in an admittedly less elegant way.


Thanks GaryB - do you by chance happen to know when this 12 Volt power supply from Channels Islands Audio will be available?

 

I have to say that I'm very happy with the sound of the Meridian Prime - it is the best sounding product I've ever owned.   I'm comparing it with various DACs and headphone amplifiers I've owned, including Woo Audio headphone amplifiers.  I particularly love that in very quiet passages, or in transition between songs, the Prime is "pitch black", there's no noise at all, compared to the tube amplifiers I've owned in the past, where there is always a hiss or tube noise in the background.  I also use the Prime as a pre-amp 50% of the time, where the benefits of a more competent power supply would not really be that applicable.

 

As you say, I'm already enjoying the benefits of clean USB data and power by using the iFi iUSBPower box.  The only way to confirm any additional improvement is by either replacing the Prime wall wart with the unit you are recommending or with the Meridian Power Supply.  From the superb sound quality that I'm witnessing at the moment, I would suspect that any additional improvements would be fairly subtle and mostly on better bass definition when using the Prime in headphone amplification mode.

 

The major problem with the Meridian Power Supply (MPS) is the significant cost, which is caused by the fact that is over-engineered for the purpose of just feeding the Prime.  The MPS has 5 latching 3-pin mini-DIN connectors that provide the 12V DC at up to 500mA, in addition to the single USB output and data pass-through for powering external devices @ 5V DC at up to 1A.  This unit was designed to power up to 4 additional Meridian gear/devices, in addition to the Prime.   But most users (like me) that have the Prime as their only Meridian product would not need those four additional outputs at all.  I wish that they had a smaller/simpler single 5V and 12V output Power Supply unit at a cost similar to the Channel Islands Audio unit, in the range of $300-$500.
 

post #162 of 287

The unit is available now... just contact them and they'll build it for you.  It will look exactly like their current 5V and 9V units except that it will have the correct designation (VDC-12 MKII) silk-screened on the front panel.  They just need to know the diameter of the plug at the end of the wall wart's DC cable (they suspect 2.1 mm).  Cost is the same as their 5V and 9V units... $329.  I know all this because I emailed them twice earlier today and they responded promptly each time... on a Sunday.

 

Many don't seem to realize (I know you do) that the digital portion (DAC) of the Prime is powered by the USB port on your computer while the analog portions (preamp, headphone amp) are powered by the wall wart.  The optional Meridian power supply (MPS) provides very clean power to both parts with 2 separate connections to the Prime.  Your iUSBPower should be just as good as the MPS with regard to the digital portions... I suspect the Channel Islands power supply would be just as good as the MPS with regard to the analog stages.  As for what additional difference the Channel Islands unit might make... your current very positive experience does suggest that any further improvement to be had by replacing the wall wart would likely be pretty subtle, unless of course you're allergic to wall warts or inexpensive switching power supplies, as many here seem to be. ;) 


Edited by GaryB - 12/29/13 at 10:50pm
post #163 of 287
Quote:
Originally Posted by GaryB View Post
 

The unit is available now... just contact them and they'll build it for you.  It will look exactly like their current 5V and 9V units except that it will have the correct designation (VDC-12 MKII) silk-screened on the front panel.  They just need to know the diameter of the plug at the end of the wall wart's DC cable (they suspect 2.1 mm).  Cost is the same as their 5V and 9V units... $329.  I know all this because I emailed them twice earlier today and they responded promptly each time... on a Sunday.

 

Many don't seem to realize (I know you do) that the digital portion (DAC) of the Prime is powered by the USB port on your computer while the analog portions (preamp, headphone amp) are powered by the wall wart.  The optional Meridian power supply (MPS) provides very clean power to both parts with 2 separate connections to the Prime.  Your iUSBPower should be just as good as the MPS with regard to the digital portions... I suspect the Channel Islands power supply would be just as good as the MPS with regard to the analog stages.  As for what additional difference the Channel Islands unit might make... your current very positive experience does suggest that any further improvement to be had by replacing the wall wart would likely be pretty subtle, unless of course you're allergic to wall warts or inexpensive switching power supplies, as many here seem to be. ;) 

Is the Prime wall wart a Switchmode Power Supply?

post #164 of 287
Quote:
Originally Posted by Chris J View Post
 

Is the Prime wall wart a Switchmode Power Supply?

 

Not sure... maybe ticos can confirm one way or the other, although it's often not explicitly stated on the power supply.

post #165 of 287
Quote:
Originally Posted by GaryB View Post
 

 

Not sure... maybe ticos can confirm one way or the other, although it's often not explicitly stated on the power supply.


Switchmode

 

.AppleMark

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Meridian Prime Headphone Amplifier Review