Stereo Preamp to pair with Carver

I'm looking to upgrade from my current Emotiva PT-100 Preamp to something with more life. 

I am currently running 2 Carver TFM-35x Amps that have been fully refurbished and upgraded.
My current Speakers are DefTech BP2002TL and are bi-amp driven by the Carvers. 

I listen to mainly vinyl utilizing a ProJect RPM-1 with Ortofon 2M Blue cart. 
Occasionally listen to CD's utilizing Oppo 103. 
Some digital streaming utilizing a PS4. 

I have a Mofi Phono Preamp on standby as well. 

I'd like to stay under $1k and prefer used, as you usually get more for you money in that realm. 

Thanks in advance.