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Matrix M-Stage amp review: simple, cheap, and excellent. - Page 293

post #4381 of 4888
Quote:
Originally Posted by Redshift Rider View Post
 

----LME49720HA is a dual "metal can" opamp and it sounds different than the plastic dual versions. 
----Single version of LME49720HA is LME49710HA. They sound different according to other people when used in various different applications. I will know for myself as i ordered another 2xLME49710HA+Adaptor to use and compare in the soundcard and also compare them in m-stage.

 

 

Let us know if the metal can thing really makes a difference over the plastic LM4562.  I'm still skeptical.

post #4382 of 4888

@Chicolom 

I have already posted in this thread that my impressions are in line with Chodi's. 2x49710HA > LM4562

 

What i'm interested in, specifically, is the difference between going 2x singles vs 1 dual of the same opamp. 

What i could gather reading is that 2 singles are usually favoured over dual version (for any opamp, but in different applications) and what people often describe is clearer stereo image.

When i wrote "i will know for myself" i had 2x49710HA vs 49720HA battle in mind :)


Edited by Redshift Rider - 9/21/13 at 6:38pm
post #4383 of 4888
Quote:
Originally Posted by Redshift Rider View Post
 

What i'm interested in, specifically, is the difference between going 2x singles vs 1 dual of the same opamp. 

What i could gather reading is that 2 singles are usually favoured over dual version (for any opamp, but in different applications) and what people often describe is clearer stereo image.

 

For whatever it's worth I've tried 2x OPA602BP on an adapter and didn't hear much difference compared to the stock OPA2134.

 

It's the one on the left here.

 

 

 

 

I know it's not a comparison of the same op-amp, but it's still 2 opamps vs a similar single dual opamp and I didn't hear much difference.  That's why I'm skeptical about the 2x LME49710 being such an improvement, unless for whatever reason the "metal can" is somehow improving things...  :confused: 


Edited by chicolom - 9/21/13 at 6:53pm
post #4384 of 4888
Quote:
Originally Posted by chicolom View Post
 

 

 

 

 

I know it's not a comparison of the same op-amp, but it's still 2 opamps vs a similar single dual opamp and I didn't hear much difference.  That's why I'm skeptical about the 2x LME49710 being such an improvement, unless for whatever reason the "metal can" is somehow improving things...  :confused: 

We've already had this discussion. Just reference the mod I bought and then look at your photo. The difference in the mounting method alone should be obvious. For less than $30 you could put this big decision to rest instead of trying to get conformation from someone else who made this huge investment. Since your associated equipment is different than mine I think it would be impossible to predict your results.

post #4385 of 4888
Quote:
Originally Posted by Chodi View Post
 

We've already had this discussion. Just reference the mod I bought and then look at your photo. The difference in the mounting method alone should be obvious.

 

 

I'm well aware that the 2x OPA602BP pic I posted is completely different from the premade 2x LME49710 opamp you got off eBay.  I was saying that in my experience 2 single opamps isn't necessarily better than a single dual opamp. 

post #4386 of 4888
Quote:
Originally Posted by chicolom View Post


I'm well aware that the 2x OPA602BP pic I posted is completely different from the premade 2x LME49710 opamp you got off eBay.  I was saying that in my experience 2 single opamps isn't necessarily better than a single dual opamp. 

I would also argue that anyone who wants to go down this path of thinking may as well say this cable sounds different than that cable, etc. etc.
Edited by Chris J - 9/21/13 at 11:54pm
post #4387 of 4888

Just so I'm clear from the various posts:

 

LME49710 is a single opamp so you need two.

LME49720 is the same opamp as LME49710 except it is dual

AND LME49720 = LM4562?

 

So 2x LME49710 =1x LME49720 = 1x LM4562?

 

Yet the LME49710/LME49720 are metal compared to the plastic LM4562 which some say changes the sound.

 

And some say that having 2x single opamp on a board has a different sound than 1x dual opamp.  (Note I said different...not better or worse :) )

 

Does that about sum it up?

post #4388 of 4888
Quote:
Originally Posted by DaemonSire View Post

Just so I'm clear from the various posts:

LME49710 is a single opamp so you need two.
LME49720 is the same opamp as LME49710 except it is dual
AND LME49720 = LM4562?

So 2x LME49710 =1x LME49720 = 1x LM4562?

Yet the LME49710/LME49720 are metal compared to the plastic LM4562 which some say changes the sound.

And some say that having 2x single opamp on a board has a different sound than 1x dual opamp.  (Note I said different...not better or worse smily_headphones1.gif )

Does that about sum it up?

That basically sums it up, but you can get almost any of those in a metal can or in the various plastic cases: SMD or 8 DIP.
post #4389 of 4888
Quote:
Originally Posted by DaemonSire View Post
 

Just so I'm clear from the various posts:

 

LME49710 is a single opamp so you need two. Correct. LME49710NA (dip8, plastic) or LME49710HA (TO99, metal)

 

 

LME49720 is the same opamp as LME49710 except it is dual Corrrect.  "Same" in the sense that it is a dual version of that chip. 

   

              duals                                                          singles

LME49720NA  (dip8, plastic)                       LME49710NA  (dip8, plastic)

LME49720HA  (TO99, metal)                       LME49710HA  (TO99, metal)                    

 

AND LME49720NA = LM4562? Yes :)

 

 

So 2x LME49710 = 1x LME49720 = 1x LM4562? No. Only LME49720NA = LM4562 (same opamp, same sound, just renamed)

 

 

And some say that having 2x single opamp on a board has a different sound than 1x dual opamp.  (Note I said different...not better or worse :) )  Correct :)

 

Does that about sum it up? 


Edited by Redshift Rider - 9/22/13 at 5:02pm
post #4390 of 4888

Just bought this :3
http://tamaudio.com/store/index.php?route=product/product&product_id=111

 

also my LM4562 is going to be pickup tomorrow :D 

will test the M-Stage with OPA627 1st cause i know how does it sound, just wana see the fsotex TH600 with it, using Yulong D100 MKII as the DAC here, i really hate the sound of D100's amp -.-''

then i will go and test the LM4562 when i am ready to do so.

post #4391 of 4888
Quote:
Originally Posted by Shini44 View Post
 

Just bought this :3
http://tamaudio.com/store/index.php?route=product/product&product_id=111

 

also my LM4562 is going to be pickup tomorrow :D 

will test the M-Stage with OPA627 1st cause i know how does it sound, just wana see the fsotex TH600 with it, using Yulong D100 MKII as the DAC here, i really hate the sound of D100's amp -.-''

then i will go and test the LM4562 when i am ready to do so.

 

That is exactly what I bought from Tam. I will be interested in your comments. I've already posted my comments. Before I changed out the class "A" mod supplied I was not happy.

post #4392 of 4888

got everything but the M-stage  will be here in 6 days :/ i got one question though, the opa627 is warm right? where the LM4562 is bright, i know that both has nice treble though, for me i hate the brightness cause it is fatiguing, and i already using TH600 here :P which is bright :/ but i love the treble/highs the most so i will make sure i test the LM4562 one i finish testing opa627

post #4393 of 4888

I just ordered a Burson ha-160 to replace my M-stage as my bedtime amplifier. I hope a get a signifiant difference, otherwise the m-stage can stack up to a 800$ amplifier

post #4394 of 4888
Quote:
Originally Posted by Xprime4 View Post
 

I just ordered a Burson ha-160 to replace my M-stage as my bedtime amplifier. I hope a get a signifiant difference, otherwise the m-stage can stack up to a 800$ amplifier

 

If you have been listening to the M Stage with the opa627 the Burson will surely be different, but will it be better is the real question. Interested to hear your results.

post #4395 of 4888
Quote:
Originally Posted by Shini44 View Post
 

got everything but the M-stage  will be here in 6 days :/ i got one question though, the opa627 is warm right? where the LM4562 is bright, i know that both has nice treble though, for me i hate the brightness cause it is fatiguing, and i already using TH600 here :P which is bright :/ but i love the treble/highs the most so i will make sure i test the LM4562 one i finish testing opa627

 

The difference in sound between the '627 and the '4562 is very, very slight.

 

Whatever Op Amp you use, the M Stage still sounds like the M Stage.

I wouldn't be afraid of the LM4562 if you don't like brightness.

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