Although it’s slightly above your budget, I urge you to consider the Hegal V10.
The chassis is divided into two compartments, physically separating the power supplies from the sensitive amplification circuitry and avoiding interference.Hegel fitted the V10 with gold-plated terminals, balanced XLR outputs, and a solid custom grounding screw. On the all-important input stage, they used ultra-low-noise discrete JFET transistors for both the Moving Magnet (MM) and Moving Coil (MC) input.

