Should speakers be upgraded before preamp and amplifiers?

@daveoman 

If you’re simply asking which next component to change, then it’s the amp.

BUT, it sounds like you want to change both speakers and amps soon, so I suggest demoing speakers maybe 3-10k range, then get matching electronics.  

Oh dear. You have it backwards. Improve your turntable to a Technics SL1300G/Nagaoka MP500 and replace the old receiver with something like a VAC integrated for $7k all in, and you won’t need to replace the Von Schweikerts.

Yeah, this might work out fine if the speakers are good enough for that.

@daveoman  Could I suggest you start with your room.  The dimensions you have stated do not produce good results from a couple of acoustic calculators I use.  They say the room is half the equation to a great system.  Just a thought.  Cheers.

Maybe look at integrated amps from McIntosh.  You will want to buy an upgraded amp then align with your speakers.  As an example; if your amp has 200 watts, then buy your speakers that will match at 200 watts maximum.  Other wise you could end up with an amp at 200 watts and your speakers at only 150 amps.