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REVIEW: Matrix Cube DAC - Page 9

post #121 of 143

Well, I just bought me one of these... cool.gif So now I'm even more interested in this thread and opamp rolling, especially when my Cube arrives! rolleyes.gif

post #122 of 143
Quote:
Originally Posted by putente View Post

Does opamp rolling on the Cube require any adapter, or is it a straight swap?
 



 

Depends on the opamp and if its a single or dual chip. Single chips need the adaptor and a pair of the chip (one per channel). Some adaptors require soldering while others are plug and play. Which one you get depends on the version of the opamp you buy. Duals do not need anything and are a straight swap.

 

For example, the popular OPA627 and AD979 are singles so you'll need a set of them. 
 

 

post #123 of 143

Ok, I know nothing about electronics and opamps, but the fact that opamp rolling gives the possibility to change the sound it produces, I very interesting. I might give this opamp rolling business a try, if it isn't too complicated to perform... rolleyes.gif

 

For those of you who rolled opamps on your Cube, can you tell which ones are your favourites and why (what do they change in the sound)? Oh, and if they're a straight swap or if they need adapter...

 

 

Thanks! wink.gif

post #124 of 143

My Matrix Cube finally arrived, and I'm enjoying it! cool.gif

 

Can anyone who has a Cube with socketed opamps tell if mine, with serial number 201105008, is supposed to have those as well (based on yours SN)? I don't want to open it up just yet, as mine has a warranty seal on one side, but I'm a bit curious and it would be nice to know... rolleyes.gif

 

 

Thanks.

post #125 of 143

If you plan on opamp rolling you'll be breaking the seal anyway. wink.gif Haven't taken a peek inside yet myself.

post #126 of 143

Yes, I know that, but if somehow I could know if my Cube allows opamp rolling without breaking the seal, based on it's serial number, it'd be great, don't you think? wink.gif 

 

At least, this would prevent me from voiding it's warranty for no reason, if mine doesn't allow opamp rolling... rolleyes.gif

 

Quote:
Originally Posted by manveru View Post

If you plan on opamp rolling you'll be breaking the seal anyway. wink.gif Haven't taken a peek inside yet myself.



 

post #127 of 143

I bought mine over a year ago and it allows for opamp rolling so I'm sure yours does as well.

 

I really wouldn't worry about them voiding your warranty because of a broken seal, especially from matrix/tam audio.

post #128 of 143
Quote:
Originally Posted by clams View Post

I bought mine over a year ago and it allows for opamp rolling so I'm sure yours does as well.

 

I really wouldn't worry about them voiding your warranty because of a broken seal, especially from matrix/tam audio.


Thanks for your answer, clams! BTW, what's your opinion about the following: 

 

 

Quote:
Originally Posted by putente View Post

For those of you who rolled opamps on your Cube, can you tell which ones are your favourites and why (what do they change in the sound)? Oh, and if they're a straight swap or if they need adapter...

 

 

Thanks! wink.gif



 

post #129 of 143
Quote:
Originally Posted by putente View Post

 

For those of you who rolled opamps on your Cube, can you tell which ones are your favourites and why (what do they change in the sound)? Oh, and if they're a straight swap or if they need adapter...

 

 

I am also interested. Can anyone share their experience with this?

post #130 of 143

I had a Cube a few months ago. I suggest starting with OPA627, LM4562NA, and AD797. A quick search will inform you whether you need an adapter - if the opamp is single you will need a dual adapter.

post #131 of 143
Quote:
Originally Posted by rictee View Post

I had a Cube a few months ago. I suggest starting with OPA627, LM4562NA, and AD797. A quick search will inform you whether you need an adapter - if the opamp is single you will need a dual adapter.

 

Thanks, Rictee. Ordered a LM4562NA and an OPA2227PA.

 

Edit: And a LME49722MA!


Edited by Kurios - 11/6/12 at 1:13pm
post #132 of 143

Opamp rolling rocks darthsmile.gif. Using OPA2227PA instead of standard OPA2134PA. Begone harshness & welcome balanced analoge sound.
 


Edited by Kurios - 11/8/12 at 3:20pm
post #133 of 143
Quote:
Originally Posted by Kurios View Post

Opamp rolling rocks darthsmile.gif. Using OPA2227PA instead of standard OPA2134PA. Begone harshness & welcome balanced analoge sound.

 

 

Now you got me curious about trying the OPA2227 in my Cube too! Where did you get your opamp from?

post #134 of 143

http://hbe-shop.de. They send in Germany only. http://www.digikey.com/ is a populair international shop.

post #135 of 143
Quote:
Originally Posted by Kurios View Post

http://hbe-shop.de. They send in Germany only. http://www.digikey.com/ is a populair international shop.

 

 

Thanks. The problem is that Digikey charges me 18 EURO of shipping for a 4 EURO opamp! I can find them on eBay from sellers in China, but I'm not sure if they're original or fake...

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