preamp recommendation for bedroom set amp

Check out Music Hall and Cambridge audio. Great value for the money.

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

I agree that linear tube audio seems like a good idea just did not know if it necessarily mated well with a set amp.....its on my short list ....just seeing if anyone has been down this road testing preamp with set amp.....the art preamp is far too pricey....

can someone recommend a preamp for a set amp

That’s silly.  Lots of pres will work with a SET amp.  What sound characteristics and improvements are you looking to achieve?  That’s the bottom line here. 

my amp has volume control but seems many believe that amp is better still not receiving source digital system direct so want to try a preamp between the marantz digital player and the amp (ideally tube (dont want to lose set amp sound signature) with remote and headphone jack))