I went from F5 to XA30.5. In my system F5 sounded more delicate and detailed, but didn't have enough power to drive my Electras. XA30.5 sounds warmer, more dynamic and has excellent bass control.
Although First Watt and PASS labs amps are from the same designer, they are designed with different philosophy. Each First Watt amps are designed with specific purpose. They are not for everyone and for every speaker. You should make sure that your speakers are compatible to the First Watt amp that you want to try. If you find First Watt amp that works well in your system you may never look back again.
Although First Watt and PASS labs amps are from the same designer, they are designed with different philosophy. Each First Watt amps are designed with specific purpose. They are not for everyone and for every speaker. You should make sure that your speakers are compatible to the First Watt amp that you want to try. If you find First Watt amp that works well in your system you may never look back again.