Devialet for Wilson Audio Sasha 2 Speakers

Device for device a BJT will out current a Mosfet.
Given powersupply conditions are right for both. Sure 10 complimentary pairs of Mosfets, will do a certain "current job".
But 10 complimentry pairs of BJT’s will do a far better "current job".
That is why Krell and Agostino and others use BJT’s, as they want to be able to almost double the wattage for each halving of impedance load all the way down to 2 or even 1ohm, to drive things like Sasha's and Alexia's

Cheers George

@georgehifi 
The MOSFETs in an F5 do nothing but swing current. They operate in common drain mode and provide no voltage gain whatsoever. There is no "almost" about them doubling current with a halving of the impedance. That's exactly what they'll do until they melt or the power supply taps out. Pass Labs claims their amps will drive any load down to a dead short, though the protection circuitry tends to kick in just below 2 ohm, but their designs are that rugged. I wouldn't try putting my F5 up to driving a dead short because it's meager single pair of outputs wouldn't handle that well at all, but something like a well built F5 Turbo V3? Yeah... That thing would definitely drive 1 ohm loads all day.
There are a number of modes you can operate a transistor in to get gain out of them. When you operate them in a mode where they amplify voltage and amperage you tend to get an amplifier that's more sensitive to a reactive load because fluctuations in the voltage also mean fluctuations in the current. Most, if not all of Pass Labs amps, operate the output stage as a source follower; all it does is provide current in support of a prior voltage gain stage. 
No offence, but it doesn't sound like you have much actual working knowledge of how these devices work. I understand some people like the sound of BJT amps. There's nothing wrong with that. They're definitely different than FET amps just like tubes are different. You assertion that a FET can't swing current like a BJT can is demonstrably false though. Not only can they do it, they generally do it much better. 

I never once mentioned the F5, it’s obvious that you have a thing for them, yes it is a amp designed by Nelson for diy’er to build to push current, but in this case it has very low gain and only 25w/8ohm, 40/2ohm not enough for these and speakers for the owner to get big levels from, and Nelson has never said it can drive 2ohms with a -45 degree -phase angle in the bass. 
The speakers it keeps company with are at the opposite end of the Sasha/Alexia scale.
http://www.6moons.com/audioreviews/firstwatt7/f5.html

All my quotes relate to Mosfets V BJT (bi-polar) in general normal linear push/pull class-a/b linear amps.

Cheers George

The INT-60 is little more than an F5 Turbo in super symmetry with a buffered volume control and some protection circuitry. It's clear that you're just looking at the published specs and have no actual knowledge of the circuit. He has, in fact, said that topology will definitely do precisely what you claim it won't at Burning Amp 2016 AND in the published F5 Turbo article. I compare the two because they're quite similar. I'm tired of arguing with you. Go look up some stuff before you come here and make flat false claims about gear you have no actual knowledge of please. 

Go look up some stuff before you come here and make flat false claims about gear you have no actual knowledge of please.

I just hope the OP doesn't take your advise for a F5 as he will be disappointed with the outcome. As you have no idea for an amp with these speakers he has. And I'm also tired of you.

Cheers George