Looking for advice re: amps for Dynaudio Contour 20i

I use Musical Fidelity M8xi with Contour 20s. They sound amazing now with such a powerful amp (870w @ 4ohm) . Before, with Densen DM 10 (150w @ 4ohm) they were sluggish, lacked dynamics, scale of soundstage. Before the purchase of MF i checked them with Hegel h390 (very nice, but music was less engaging, too sterile for my liking), Moon A330 + 390 (ok, Hegel was better, more spectacular)

@noob54

Q.” …. I just don’t know how to read amplifier specs to identify whether an amp is high current. …”

A. Repost : Don’t look only at the headline power figure - see what happens when the impedance drops to four ohms. If the number nearly doubles, then your amplifier has good current delivery and will be capable of driving more demanding speakers.

For example: My REGA OSIRIS integrated amp

A no compromise, super high performance, 162 W into 8 Ω (250 W, 4 Ω), dual mono amplifier.

Just above your price is the Musical Fidelity Nu-Vista 600 the 800 would be a few grand more.

https://tmraudio.com/components/integrated-amplifiers/musical-fidelity-nu-vista-600-stereo-integrated-amplifier-silver-open-box-1/

TMR also have the M8XI

Musical Fidelity and Dynaudio have synergy.

+1 pass labs

I 2nd an Octave integrated. Heard one in the C60 and it was really good. on paper probably shouldn’t work that well but sounds fantastic.

I have personally used a Cayin A100T on a pair of Focus 140 and it was not very good sounded really bland. An Odyssey Stratos plus in the same speakers was really good. 

Also have had a Lyngdorf 2170 on some C20s and it ran out of gas. It was fantastic on more efficient speakers. 
 

Thanks everyone! I appreciate the advice. akg_ca, last night I was thinking along the lines that you laid out - sort of like high torque / low revs vs. low torque / high rev horsepower; e.g., a 6 cylinder and 8 cylinder with equal power will never feel the same. I just don't know how to read amplifier specs to identify whether an amp is high current. 

I spoke with a salesperson who advised me that if I was unhappy with the sound, it had to be my speakers rather than the Marantz gear. Needless to say, I found myself struggling to give any of his opinions any credibility.

My take: You have two challenges to meet to permit your DYNAUDIO’s to max out their potential. I would suggest that you do it in this order

(1) Amplifier power ratings

DYNAUDIO craves high-current amps…. WPC alone are meaningless.
Another word on power: if your speakers are demanding to drive you’ll need a suitably muscular amplifier to support them. Don’t look only at the headline power figure - see what happens when the impedance drops to four ohms. If the number nearly doubles, then your amplifier has good current delivery and will be capable of driving more demanding speakers.

I would stay away from tube amps and stick with refined and beefy solid state options,

(2) System synergy matches

Now, because you have a much shorter list of contenders as you carved out the pretenders, you can now start the auditions and scope out reviews for that ethereal system synergy option tailored with your speakers.

You will get a plethora of amp model suggestions herein as replies to your post. But they have a high element of personal bias pushing their fave. Hopefully this simple matrix assists in assessing their recommendations as a candidate for your ultimate choice.

Dynaudio is the US importer of Octave, and for good reason.  The two brands show together and sound incredible together.  Dyns can be a bit harder to drive so you need a black box or super black box with them but the results are going to be very, very good.

Alternatively, Hegel is a good choice with Dyn.  Clean and clear with speakers that are clean and clear.  Good combination. 

I would put the Parasound halo Jc5 on my short list.

Dynaudio need a powerful amp and they sound their best at higher volumes. 
I owned the S5.4 and drove them with Pass Labs X250.5. I also tried Rogue ST100 but the bigger Pass amp was better at opening them up. 

I own Dynaudio Heritage but I have a Contour Ci center. All three being driven by Simaudio M400 mono amps. Outstanding.

This is the two channel version of the 400ms I own. It would be an excellent match. 330A. Class A first five watts..

Check Simaudio website.

Thanks IslandManDan. That's what I'm thinking. I just can't decide whether to spend the $5-6k on a refurbed statement level classic, or go with something like a Levinson 5805 (or maybe used 585). 

Years ago, I owned a pair of beautiful Contour 5.4 Dynaudio's in Gorgeous Rosewood and loved them. They seemed to work better with high-powered solid State driving them (I used an Aragon 3002 amp (300 Wpc), and they sounded great with that much power.

It's my impression they respond well with high power Solid State for power.

Good luck, regards,

Dan

Just to add to this: are vintage Krell and Levinson Class A amps recommendable? I guess the real question I'm asking is, would the performance of such an amp be considered poor compared to the new Class A A/B amps?