Hoping to get input of fellow members to help with speakers. The most challenging part of my search for audio bliss has been speakers. I've had Thiel 1.2, Monitor Audio Gold, Cary Silver Oak, Zu Essence, Ref 3A MM deCapo BE, Magnepan SMG, and Harbeth SHL5, to name a few. Most have shortcomings but the Harbeths and Magnepans gave me the fondest listening sessions because of their liveliness and imaging. I'm basically looking for something that will just put out what its fed, play well, and basically disappear. I listen primarily to vocal and acoustic music and enjoy 60s and 70s rock and R&B recordings. System consist of LP12/Origin Live/Lyra MC, Esoteric SA-50, David Berning ZOTL Pre One, VAC Renaissance 70-70/Lamm ML2.1/JA Burgess SE45 with Chord and Siltech cables. Hoping to keep the cost below $5K. Any input is appreciated.

I should add that Fritz speakers do remarkably well with low-powered tube amps.  My recommendation is based on hearing them powered by a Modwright SET headphone amp.  See also this thread:

I have Spendor D1 and Rel R-328, at combined msrp of 5k but less than that used, and they are really good. 
Spendor D series have a faster, more modern sound than classic Spendor (I also have SA1), and I suspect Harbeth (can’t say for sure Re Harbeth as I have not owned).  It’s personal preference of course but If you can find D1’s, they might fit the bill

Also look at Reynaud Bliss Jubilee at half your max budget new and less used.  Have owned multiple Reynaud monitors over the years and now the Fritz Carrera Be.
@bananaslug have you considered the Dynaudio Special Forty ?
They're know to

...put out what its fed, play well, and basically disappear

Combined with a sub of your choice you can easily stay under $5K

@ditusa I'm afraid you're incorrect.
minimonitors minisound ALL minimonitors are cutoff @70hz try a pair jbl 4425 monitors I run the jbl with quick silver amps same power as the vac amp cut off @ 40hz

Most mini monitors go well below 70hz. I've measured them myself and found even the affordable Paradigm 20 studio monitors go down to 32hz. Granted they may be down 6db or so at that frequency it's still audible and they were flat to 48hz. My Revel and B&W stand mount/monitors easily do the same. 

The OP's VAC Renaissance 70-70 specs pretty good for low frequencies.
Power Output:
65 watts continuous average power at 1 kHz with less than 2% THD into 4 ohms connected to the 4-8 ohm tap

0.12 % THD at 10 watts 

Frequency Response:
down 0.5 dB at 6 Hz and 90 kHz, ref 0 dB = 1 watt @ 1 kHz
down 3.0 dB at 2 Hz and 103 kHz, ref 0 dB = 1 watt @ 1 kHz

Power Bandwidth:
down 0.5 dB at 12 Hz and 58 kHz
down 3.0 dB at 8 Hz and 85 kHz

Another great option I meant to mention is the Vandersteen VLR CT.

I'm waiting to audition a pair of these and may just buy a pair without an audition. Trusting my experience with Vandersteen speakers I'm sure they're outstanding.