Not certain if it's a good match with the AJ, but check out the least expensive preamp (HP input and remote) from Linear Tube Audio.
Supposedly designed by David Berning and very positive reviews (both pro and otherwise).
With remote it comes in @ around $1.5K and the small signal tubes should last a lifetime (per reviews;-).
I've wondered if the power amp section would work with my vintage Elac wide range drivers as my cheap 3 watt 2A3 amps have Zero problem driving them.
https://www.lineartubeaudio.com/products/mz2mz2-s
DeKay
Supposedly designed by David Berning and very positive reviews (both pro and otherwise).
With remote it comes in @ around $1.5K and the small signal tubes should last a lifetime (per reviews;-).
I've wondered if the power amp section would work with my vintage Elac wide range drivers as my cheap 3 watt 2A3 amps have Zero problem driving them.
https://www.lineartubeaudio.com/products/mz2mz2-s
DeKay