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Matrix M-Stage amp review: simple, cheap, and excellent. - Page 308

post #4606 of 4904
Quote:
Originally Posted by conquerator2 View Post

So is the OPA2134 utter crap or what?
Should I just order the TA/LM op amps or should I give the stock one a try first?

 

OPA2134 is fine. 

 

Try some others if you want, but I wouldn't go crazy on op-amp rolling unless you can actually hear a difference between them (not think you can).

post #4607 of 4904
Quote:
Originally Posted by conquerator2 View Post

Another one to try then
If I am not entirely happy I'll probly buy both and see which is better.
Anyway, just curious, why did you remove the in caps of your Matrix?

The input caps:
Just an experiment.
I verified that the DACs I use have no DC offset at their outputs (they are probably capacitively coupled) so I wanted to see if I could hear a difference.
I think the M Stage sounds better without them, but I can't be really sure.
It took me about an hour to take the M Stage out of my headphone system, take the caps out, put in jumpers, and put the M Stage back in my system, etc.
If it does sound different or better, then the difference is very subtle.
post #4608 of 4904
Quote:
Originally Posted by chicolom View Post

OPA2134 is fine. 

Try some others if you want, but I wouldn't go crazy on op-amp rolling unless you can actually hear a difference between them (not think you can).

Yep, that's a big if xP
post #4609 of 4904

Got the amp/dac module.

Burning it in now and I gotta say, I am pretty impressed.

Running hot like class A amps do - check

Plenty of volume play for harder to drive headphones left [K612 currently] - check

Neutral with lots of details and dynamics - check

 

Really liking it so far :]

post #4610 of 4904

^ Agreed with everything you've said thus far. It does run quite hot. Seems to sound better by the day (to me). Can't wait for the new HiFiMan's coming out (or a used HE-500).

post #4611 of 4904
Quote:
Originally Posted by TooPoor View Post
 

^ Agreed with everything you've said thus far. It does run quite hot. Seems to sound better by the day (to me). Can't wait for the new HiFiMan's coming out (or a used HE-500).

Yes, exactly!!

 

So far, M-Stage tested with - AKG K612 Pro, Audio Technica ATH-W1000X, Philips Fidelio X1, Sony MDR-MA900.

Zero noise floor, great synergy with all of them.

The DAC seems to be good enough too, I definitely recommend it for the extra 40/50 bucks, if you don't have a good dedicated DAC yet, certainly no tack-on.

post #4612 of 4904

Bought the LM4562NA DIP8 and the TI1364 just for the sake of it.

That's as far as I'll go with the op-mp rolling :]


Edited by conquerator2 - 1/14/14 at 10:45am
post #4613 of 4904
Quote:
Originally Posted by TooPoor View Post
 

^ Agreed with everything you've said thus far. It does run quite hot. Seems to sound better by the day (to me). Can't wait for the new HiFiMan's coming out (or a used HE-500).

 

I'm hoping last year's M-stage pairs well with the HE-400i. 

 

Are there any differences with the new M-stage and the previous one in terms of power? I know the new one has a fixed gain though.

post #4614 of 4904

 Someone will have to confirm this, but I do not believe there is any power difference. Correct, guys?

 

 I really want to start hearing about the 400i. For me, it's either that or the HE-500. Just waiting on some reviews in the coming months (already feeling like years).

post #4615 of 4904

By the way, will both of these work?

 

http://www.ebay.com/itm/200762599501?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

http://www.ebay.com/itm/200927947722?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

Thanks!

post #4616 of 4904
The amp circuit is the same as the previous version. The amp only version simply has some updates to the chassis. The addon DAC version has a significantly better DAC. I have both side by side, but due to congestion affecting my hearing, I haven't compared them yet.

I also have both the Mini-i and Mini-i Pro. I plugged in both last night to get them warming up and listened a bit to the Pro and my first impression (with headcold) is positive. Looking forward to hearing the differences between the AD1955 and the Sabre when I can hear properly.
post #4617 of 4904
Quote:
Originally Posted by Maxvla View Post

The amp circuit is the same as the previous version. The amp only version simply has some updates to the chassis. The addon DAC version has a significantly better DAC. I have both side by side, but due to congestion affecting my hearing, I haven't compared them yet.

I also have both the Mini-i and Mini-i Pro. I plugged in both last night to get them warming up and listened a bit to the Pro and my first impression (with headcold) is positive. Looking forward to hearing the differences between the AD1955 and the Sabre when I can hear properly.

Both good things, right? :D

The amp seems to be very good to me IMO, the better if the DAC is decent too [which it semms to me as well :P]

post #4618 of 4904

 Had to throw on one of my IEM's because the wife is asleep. Plugged in my JVC FXZ-200's into the M-Stage and am completely blown away, to be honest. I've kept these IEMs around for rare occasions (prefer my GR07 BE's typically) where the bass called for them and tonight I watched, 'In Ecstasy' (docu about house/trance) and can't believe how good this amp makes these sound. I've never been sold on the overall signature of the FXZ200, but the M-Stage rounds them out perfectly, especially with this bass-centric documentary. :ksc75smile:

post #4619 of 4904
post #4620 of 4904
Quote:
Originally Posted by conquerator2 View Post


Anyone, please?

There are lots of comments in this thread about switching opamps. Both opamps you reference will work but the LM4562 is the one most commented on and generally given good reviews. If you use a dual opamp you are not going to get a BIG change but it can make an audible difference. If you want a significant step up try something like this:

 

http://www.ebay.co.uk/itm/LME49710HA-X2-Adaptor-/180872434827?

 

Works for me and I went through a few duals before I found this. Now I don't feel the need for a change. 

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