I'm not sure about AA's standard passive pots, but the Goldpoint stepped attenuator they offer as a premium option is nice. Whether you like it or not will ultimately depend on your source and your personal preference.
Any Art Audio except the PX-25 should drive your Tylers sufficiently. Just make sure to ask for 4 ohm taps.
Any Art Audio except the PX-25 should drive your Tylers sufficiently. Just make sure to ask for 4 ohm taps.