Tube Preamp to Match with Aragon 4004 mk2

VTL 5.5 pre

You made no mention of budget. I use a Jolida Fusion with my BEL 1001 MK5. The Fusion lists at $1300 and to me seem a good all tube pre for the $$$. Has HT bypass, remote, balanced ins and outs.

Emarcano,

The VTL 2.5. either new or used, would be a good match and lower priced alternative to the very good VTL suggested by Ryriken.
I once used the 2.5 with an Aragon 4004 (original model, not a mk2) and it was a very good combo. I replaced its 4 standard Russian tubes with NOS(new old stock) Mullard tubes from Upscale Audio ($200 for all 4)and the sq improved a step or two with the touch of added warmth and bloom. It also has a ht bypass and basic (volume/mute) remote control.

Good luck.
Tim