whats a more detailed preamp


looking at the hovland 200 , or cj line , ct6, have cj premiere 140 , audio aero cap se mkii , tetra 606. listen to mostly jazz , have heard the hovland very impressive
pavpet
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I am so biased, but I think the best detail I have ever heard is my own Art Audio Carissa 16 watt tube amp. It was the single greatest audio upgrade I ever made. With the right speakers, despite what some might say, an amp upgrade will do more than anything except source.