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WTB Nutube / Triode Line-Level Preamp

Wanted to buy
I’m looking for a finished Nutube or conventional triode line-level preamp (no phono) to integrate with the following chain: Apple TV 4K → Rotel RSP-1576 Mk II (acting as DAC) > Odyssey Kismet Monos (≈200 W/8 Ω). Looking to build a 2nd harmonic rich chain with SS resolution 🙂.

Considerations
  • I’m open to a well-executed DIY build, factory kit (Korg Nutube, Nelson Pass B1-K, etc.), or commercial unit.
  • Must be fully functional and cosmetically reasonable; schematic or build notes appreciated.
  • Budget is flexible for the right piece. Will pay for shipping & provide label.
If you have something that fits, please PM with details, photos, and price. Thanks for looking!