High current amp search

@gavman 

Agree with your philosophy, but if your main speakers are flat to 20Hz (and therefore probably no worse than -6 dB at 15Hz), why in the world would you need subs...?

Really?. You are an experienced audiophile and I think a MUSIC lover too and by any astandard at any price that is not " and end game level amp "
 

@rauliruegas  Really?  By any standard and at any price?!?  Horse hockey, and that’s just a silly statement from someone who’s likely never heard the amp and definitely not one that’s been heavily modified by SMcAudio that takes it to a higher level entirely (and yes I own an SMcAudio amp so I’ve actually heard the level of improvements those mods deliver and it’s substantial).  There are plenty of audiophiles who’d consider the stock McCormack DNA 500 their end-game amp, especially those who — like the OP BTW — can’t spend well north of $10k on an amp, and the amp I recommended goes well beyond the stock amp.  And I’ll add that $2900 is less than half the $7k original price of the amp that’s already a great deal, but this amp has around $2k of mods/top-quality parts added in on top of that by the original designer, which makes this an insane value IMO.  But the bottom line here is if the amp provides what the OP is looking for, and considering those parameters this amp at $2900 would be extremely hard to beat within the $4k budget, and it can still be improved further with SMcAudio’s latest mods for not all that much more $ if even higher performance is desired.  I’ll just end with Chip Stern’s conclusion from his 6moons review (where it earned a Blue Moon award) that captures well the level of performance/value on offer here, and the OP can decide if it’s worth considering regardless of your uninformed opinion of it.

And might I add -- with an ironic compassionate cough for the benefit of those readers to whom $6995 is not a walk in the park but the outer limits of an entire system -- that the McCormack DNA-500 represents an unbeatable audiophile value that can go toe to toe with any and all comers under $10,000 and more than hold its own against some even more expensive monoblocks. For someone well-heeled enough to contemplate a $12,000-20,000 system, with an eye towards future upgrades, the DNA-500 could be a good long-term investment, a solid sonic cornerstone that can grow as your system and your appetites grow or as you move to bigger spaces, able to accommodate larger, more power-hungry full- range speakers. Based on my experience, it’s hard to imagine a speaker that would make the DNA-500 say Uncle…In toto, the DNA-500 sets a new standard for value and performance in solid-state amplifiers. It is beautifully balanced, harmonically sweet and seductively detailed. It is warm yet clear, with the full body and bouquet of a red and the transparency and piquant bite of a fine white wine. It is quick and nimble and offers immense transient impact and immediacy. It deploys its massive reserves of power in a relaxed and inviting manner, balancing delicacy and vigor, suppleness and slam. It doesn’t sweat the big gestures nor overlooks the small ones. It allowed me to experience all manner of music on a capacious soundstage with enormous scale and dimensionality and proved utterly revealing and supremely accommodating to all of the gear I matched it with, both upstream and downstream. In short, the McCormack DNA-500 conveys the immediacy, intimacy and aura of recorded music with compelling accuracy, commanding authority, soulful purity and a minimum of muss and fuss. It’s easy to listen to and even easier to love.

Dear @gavman  :  First I'm not telling that make a change of your Boulder for the 20.6, a misunderstood for your part. Dry sound?, well this depends of the whole syatem audio and not only the amp and I can tell you that at least the 20.6 is everything but dry.

In the other side The IMD in your speakers exist but at low level due that the crossing is at 230hz and due to the excellent driver Focal uses on it. I think you are using the subs only as reinforcement on the low bass. Your speakers goes down to 22hz ( 3 +-db ). My speakers goes down 16hz and I use subs because the woofers has a higher cross frequency than yours.

Even that you said NO I can tell you that I know for sure what I'm talking about and that I know very well the signature of Boulder amps and I can tell you that I can live with its amps .

R.

This is an end game level amp.

https://www.ebay.com/itm/317455733742

@soix 

Re that eBay listing, I think I would get its serial # and confirm the authenticity of the handwritten Platinum inscription on the back panel with the factory

Kind of related:  https://forum.audiogon.com/discussions/sometimes-hard-to-drive-speakers-are-a-gimmick