Pre-amp suggestions for Thiel 2.4/Pass Labs XA30.5

Also, unsound... in a different thread, I read that the Mcintosh amps (at least the big ones) still double down as impedance drops. So basically, a 402 would give you 400W out of each of the different taps, but if you had a 4 Ohm load on the 8 Ohm tap you'd still pull 800W. It would just tax the amplifier a lot more than if you were attached to the 4 Ohm tap, where you'd be pulling 400W with the same exact load. That said, I don't understand the technology and am just regurgitating someone's anonymous internet post.

I thought the point of the autoformer was to provide the same watts into any load from a give tap? Load tolerant?

A Chinese amp with an unusual tube, that will put out less power than the amp you currently find to inadequately power the speakers your driving? Good luck with that!

Does that mean it would provide the same power even if the speaker is demanding more power? Let's keep in mind, that it isn't power alone that the Thiels are asking for.

A Chinese amp with an unusual tube, that will put out less power than the amp you currently find to inadequately power the speakers your driving? Good luck with that!

~~~

Ha... well, I see you have a strong opinion on that! I thought I was comparing 60W (the XA-30.5 into 4Ohms) to 160W out of the EE. Still learning how to compare amp output though...

As for the Mac, all I read about was the response into varying loads from a single tap... so the way I read it, from any single output, they will double down in provided Watts as the speaker's impedance drops by half (i.e., goes 4 to 2 ohms).