Preamp Options under $3500

I am not sure this would be an option, based on your input requirements, but having been very recently amazed by the flexibility and functions of the Eversolo Streamers, I thought I would "toss the hat into your ring" - I was looking for a good Streamer and ended up with their A8, just below $2k.  The A8 and the newer A10 both provide great streaming features and will also function as a high end PreAmp.  They are looking like a player to be reconned with - superior ratings - give them a look - just might fill your bill.

Uhm you already have a Preamp coming? why look for others without using what you have on the way first? @chippieboy 

I have a Schitt Kara F preamp that replaced the 4x more expensive Holo Audio Serene. The Serene was very good but after a head-2-head with a friend's DIY preamp, the bloom fell off the Serene for me.

I figured the $799 Kara F would be very close to the Serene. It is about 85% as good as the Serene so I sold the Serene.

The Kara F is going into a Schitt Wotan amp (which I really like). I have the Schitt Yggi+ MIB DAC also in the system. 

I put my Benchmark HPA4 preamp into the system and loved the sound over the Kara F. As I have said in many posts. You can give me a million $ and for audio and I still use the HPA4 or LA4 preamps. 

I even have my office and Livingroom system hooked up to the same HPA4 preamp at the same time. Of course, only one system plays at any time.

The Kara F still gets used, but now only for my RAAL SR1a earphones, via the same Schitt Yggi+ MIB DAC and the Schitt Aegir amp.

@helomech  I like hearing stories like this. Can you share what other preamps you had that you ultimately preferred the A70 pro to?

You could look for a used Luxman CL-38uC.