Thought I'd start a thread to discuss these fine (and other solid state) amps. I'm interested in some 100 watt or greater amps. I love reading the Pass DIY forums and seeing all the cool stuff Nelson comes up with. Unfortunately I have a love affair with pain in the butt to drive speakers so I am left with mostly their commercial offerings.

My first question is what would be the big difference between an Aleph 2 and XA100.5 as far as sound goes?

And about the XS150, has anyone heard them or have insights into their design?

Do you think any of the Aleph or XA.5 amps can provide adequate voltage for V hungry electrostatic speakers, especially on very dynamic music?

That's all for now

F5 turbo!

Aren't the heatsink demands for the F5 turbo rather...serious?

F5 turbo!

You are one sick dud

Also it's probably the least interesting FW amp to me, personally I am more interested in the amps that are more to the FW ethos.

Excited to see where this SIT stuff goes, though sadly I've seen Nelson nix the idea that they will get used in the higher power amps.

Find Pano's thread at DiyA on "how much power do I really need" and answer this question. The reason is, this will tell you how much voltage swing and thus how high of rails you will need.

For what it's worth, any First Watt design can be adapted for more voltage swing and more current.

I'd think the Aleph2 would be pretty similar.

I'd recommend the Aleph J-X or one the Burning Amp series amps.

For my 1*10²W needs I'd build an End Millennium. Simple enough for me not mess up (yeah, right) and enough juice for 89db'ers. Some of the local guys praise the design and sound. Also none of the parts seem too unobtainable.

Cookbook with less bullcrap than the article linked above.

Just my two imperial septims.

Edited September 21, 201213 yr by RudeWolf

Aren't the heatsink demands for the F5 turbo rather...serious?

Liquid cooled!

Many people don't know this, but it was just one man in Nome who decided to build an F5 turbo, that started global warming.

Why buy a room heater when you can build a globe heater?

Find Pano's thread at DiyA on "how much power do I really need" and answer this question. The reason is, this will tell you how much voltage swing and thus how high of rails you will need.

For what it's worth, any First Watt design can be adapted for more voltage swing and more current.

I'd think the Aleph2 would be pretty similar.

I'd recommend the Aleph J-X or one the Burning Amp series amps.

Will do, thanks. Though at this point I am still more interested in their commercial offerings.

I've been thinking about getting an INT-30A to replace the Exposure in my office system. Just looking at the damn thing gives me half a chubby.

So then you'll need two?

Dual mono is the only way to grow, bro.

If your speakers can do with that much power, then do it!

That has to be the most powerful 30W amp in the world so I think he'll be just fine.

Or get the 150 and go push pull.

Edited September 25, 201213 yr by luvdunhill

push pull will maximize chub from my experience

Someone that has high efficiency speakers needs to take a flier on the SIT-2 (heck maybe a K1000 user even)

I'm pretty excited that Nelson said in 6moons the SIT-1s might make their way into the higher power Pass amps

http://www.semiconductor-today.com/news_items/2012/OCT/SEMISOUTH_241012.html

This sucks bigtime.

Yeah and stocks were nearly depleated immediately. I had tons of plans for these too...

Sorry to hear about the news as well. Didn't know they were selling them to DIY'ers.

Sorry to hear about the news as well. Didn't know they were selling them to DIY'ers.

You could get them at Newark

You could get them at Newark

LOL good thing I didn't know this before