New system/room, upgrade amp or preamp first?


Hi all! This is my first post here but I've been an active A'gon'er for many years.

I recently built myself a listening room in the basement. Nothing too exotic in terms of the actual room construction, but I do have 4 OC703 acoustic panels on the wall for front wall reflections and for first reflections. I had a friend build cabinets and I did the crossovers and assembly of Troels Graven's ScanSpeak 3-way Discovery monitors. Just got them done yesterday, they sound very good but need a while to break-in.

I am currently using Jriver set to DoP, out via USB to a Schiit Loki DAC, then on to a Marantz SR-685 5.1 receiver acting as a preamp, and finally on to a B&K AV5000 5.1 separate amp (5 x 105), obviously only using two of those channels. I have the sub out of the Marantz y'd and connecting to two BIC F12's, used only to fill in the lowend. They aren't the most musical subs obviously but they do a fine job to my ears for 45-50Hz and below. They provide a satisfying weight to the sound without dominating the room.

So, I'm pretty OK with the DAC and source. I'm basically using two repurposed home theater components so those are next on my list to upgrade. The room is small, 13 x 10 (speakers are 82" apart, my chair is 82" back from the center point, about 3' from the back wall). I have kicked around an integrated amp but I do prefer separates if I'm being honest. If I have a $1500 budget for ONE component, what should I be looking at first - addressing the AVR-turned-preamp, or the B&K amplifier? The item not chosen for upgrade at this point will be addressed in another 2-3 months.

It's tough to judge a system with such new speakers but so far, the sound is well-dimensioned for both width and depth, though depth is a bit shallow. Voicing is wonderful, thanks in part to the 4" ScanSpeak midrange (wired out of phase with the woofer and tweet).

My listening tastes are varied but primarily I prefer Rock, Metal, and am starting to get more into blues and jazz. I do some orchestral stuff here and there as well as instrumental concerts (violins and piano). Any and all opinions are welcome, I can clarify whatever is necessary. Thanks!
toddrhodes
There is a Bel Canto Pre1 for sale locally that I am very intrigued by; unfortunately I do need a remote based on where the preamp will sit, and this seems to be a very good Pre that allows for both sub hookup and remote control. Is $1k a reasonable price for a Pre1?
your pre-amp first ..... full stop

the receiver, particularly as a preamp, is your weak link
In that small room, the amp is probably fine for now.

If you must change one or the other sounds like the pre-amp is the one to change first.

Its hard to find any Bel Canto pre-amp in good working condition for much less than $1000 so the price seems fair off the cuff, assuming all else is in order.

Its worth checking Audiogon Blue Book on most items when you need to know what prices are reasonable based on prior similar sales. You might be able to justify offering less depending but $1000 does not seem out of the ballpark to start.

FWIW I am a BC fan. It's one of the lines I track regularly. I have Bel Canto amps but not pre-amp, though I might someday.
I appreciate the feedback! I had considered going to the BlueBook to check it out, I just may do that. Thanks again!
I've initiated contact with the seller. I just can't find a bad word about this thing unless it's being compared to units several times its price. It checks all the boxes, BlueBook reveals it is priced well... I believe it shall have a new home soon.

Todd