Intg Amps: Hegel 590 vs NAD M33 Masters vs Gryphon Diablo 120

Hi All: I am getting an itch to upgrade my integrated amp from Hegel 190 to something more robust that facilitates future speaker swapping.  And no, I'm not presently interested in separating components that much further (e.g. separate DAC; separate amp; clock; etc. etc).  I mainly interested in the following 3 on a used basis:

Hegel 590 OR NAD Masters 33 OR Gryphon Diablo 120

Max budget is $7500 if I choose to go towards the Gryphon (used), but curious if it's really THAT much better.   I'm particularly interested to hear from people that have had or auditioned at 2 out of 3.  The room correction on NAD is very appealing but I quite like my Hegel and it's tight control, and so something nice about staying true.


Current Setup:

* Unideal Brooklyn Apartment living room into Kitchen

* Hegel 190

* Monitor Audio Silver 7G 500

* Pine Tree Audio Cables

* Dual 1216

* Schiit Mani 2 (though I hear the phono preamp on some of above may make this superfluous)

* Spotify/Tidal (main streaming source)


If the Gryphon doubles at 4 ohm and 2 ohm I would not be concerned.  I see it puts out 440W @ 2 ohms.The big Gryphon will drive anything.  I have not seen a class D products that do that.  I don't listen to lots of gear but heavy and doubling Watts are critical to me.

Hi All: What a rich response thread!  For those keeping track, here is the top-line: NAD cannot hang with Hegel and The Gryphon.  And I have moved on accordingly.

Hegel 590: about 7 votes

Gryphon Diablo 120: about 6 votes

Negative votes for NAD

I am planning to move forward with Hegel 590 (contingent on certain pricing), and look forward to having a true A/B test--my system with a 190 versus my system with a 590.  

I got the H590 to drive my Harbeths because Harbeth demos their speakers at shows with Hegel amps. And I did find it drives them better than my other amps, which includes the ARC Reference 150SE. So… at least with Harbeths it’s the amp to have. I think you will be pleased with it.

Hello gill_benedek!  In my experience, the "room correcting" feature of many companies makes an enormous improvement in my systems. I have five systems in the house (and a very tolerant wife), all have been "corrected." NAD uses the Purifi Audio output sections, which are are very good (I have four of them - two stareo pairs). Surely, the NAD is worth a try. Haappy listening!

You don't always get what you pay for. Boutique audio is the proof of that. 

But, If you don't pay for it, you won't get it!   Good power is unfortunately not cheap.   

The Hegel is out of my price range, so I just ordered a Vidar to get "decent". Not sure if it will actually be an upgrade to my own amp.  If I had gone class D, it would have been a Buckeye.