Gryphon vs. D'Agostino

As you already know George these Dan D'Agostino amps replaced the ARC Reference 250 SE tube amps which indeed sounded great on everything even old bright discs but could not drive the Maxx 3’s to the levels I have obtained with the Progression series amps.

I’m not surprised, driving the Maxx’s, with this sort of load only an amp with current will get them to sing the best they can.

As I said first post:

Gryphon vs. D’Agostino

I’d love both to drive the very hard loads of most Wilsons, especially the Alexia .9ohm (epdr) in the lower bass.

Cheers George

I’m not debating that the D’Agostino’s sound great, they do, and are fantastic amps.
But I’m stating your post of these doubling figures cannot be correct. If they were 5-10% of doubling there’d be no issue, as there are losses and these figures you posted are like saying Dan has solved Perpetual Motion, he’s good but not god.

D’Ag does exactly the same thing. My M400s:
400 watts @ 8Ω
800 watts @ 4Ω
1,600 watts @ 2Ω

Many manufacturers will understate the 8ohm figure to make it look like the amp can double all the way. This has been proved and commented on by Stereophile when doing their measurements.

Cheers George

bar81, let me tell you 100%, no amp in can double it's impedance as you showed from 8 to 4 to 2ohms below. It's impossible as there are many losses. It would be like having perpetual motion which is a dream. 

D'Ag does exactly the same thing. My M400s:
400 watts @ 8Ω
800 watts @ 4Ω
1,600 watts @ 2Ω

Cheers George

You are confused. No point in pushing this in any further. The M400 more than delivers its rated specs. It's not a debatable point; it's a fact.

They don't double down to 2ohms as you first wanted readers to believe, with these figures you posted

D'Ag does exactly the same thing. My M400s:
400 watts @ 8Ω
800 watts @ 4Ω
1,600 watts @ 2Ω

As I said they come close with these being the tested figures 
405W into 8 ohms
640W into 4 ohms
1115w into 2 ohms
And are still a good indication they can deliver good current, it not a debatable point it's fact as independent measurements confirm.

Cheers George

Here are the actual independent tested results of the D'Agostino's amps

405W into 8 ohms
640W into 4 ohms
1115w into 2 ohms

Not doubling as manufacturer specs want you to believe above, but still every respectable, for an idea of current ability.

These were conducted by John Atkinson, at Stereophile's Test labs.

Cheers George

Here are the actual independent tested results of the D'Agostino's amps

405W into 8 ohms
640W into 4 ohms 
1115w into 2 ohms

Not doubling as manufacturer specs want you to believe above, but still every respectable, for an idea of current ability.

No test yet to find on the Gryphon Antillion Evo's just the manufacturers propaganda, if you can believe them again.
150w- 8ohm Class-A
1200w-1ohm
5000w-1/4ohm

Cheers George

 

What are you talking about?

Most Wilsons need an amp with good current ability, an indication of an amp to give good current is it’s ability to almost double it’s wattage for each halving of load impedance, from 8 down to 4ohms

EG:
100w-8ohms
200w-4ohms
400w-2ohms
800w-1ohm

The Gryphon Antillion will do this better almost doing these doubling figures. And as I said it also has the benefit of user adjustable Class-A up to 100w on the fly while listening.

Cheers George

Gryphon vs. D'Agostino

I love both to drive the very hard loads of most Wilsons, especially the Alexia .9ohm (epdr) in the lower bass.
My money (if I had it) would be  on the Gryphon Antillion Evo or better. As these do the doubling of wattage thing (an indication of current ability)  better.
And these also have user adjustable Class-A bias on the fly up to 100w class-A 

Cheers George