best preamps


can someone recommend best preamps
Thanks!
jhamond987
richopp,
I have a Jeff Rowland Corus preamp. I keep reading their preamps sound bad. I’ve compared it to a couple preamps and prefer the Corus. I’m always open to improving my sound, but I need a preamp with HT bypass, specifications that will work with my Jeff Rowland 625 S2 amp, and be at or below the price of the Corus($16K).
Hello
The Audio-gd Master 1 costs a little more than 1k and its consider to compete with preamps costing 3 to 5 times more. 
Audio-gd its a chinese brand that has an incredible price to quality ratio in its products.