US made, integrated tube preamp able to handle KT150 tubes?

Made in Pennsylvania USA, uses KT120's (will work with EL34's, KT88's, KT90's etc. - Rogue Cronus Magnum integrated. 

Great product. Great sound quality.

Not hearsay - I've owned mine for about four years with no problems or complaints. I'd buy it again in an instant!

I do not have his pre-amps, but I have the Elvis and it is excellent.
https://www.erhard-audio.com/Ella.html
https://www.erhard-audio.com/Aretha.html

How often do you have to bias the tubes on a rogue? Manual dexterity (tremors) is not my strength. looks like a fairly simple process 

Quicksiver audio by Mark Sanders from Stockton CA , hand made legendary performance! I own his 60 watt mono and his incredible HP amp 

I have two PL HP’s. On running EL34’s and the other KT120’s No problems with either. 

What speakers? 15O’s could be more than they need. 

The 150’s are hot hot hot! Hot!