Upgrade your NVA P90 passive preamplifier

Upgrade your NVA P90 passive preamplifier to MKII P90SA specification:

  • Superb new stepped attenuators - quiet between steps (no cracking or fluffing), exceptionally smooth operation (no clunky clicks between steps) plus upgraded load resistors.
  • Upgraded silver internal wiring.

Ship your item to us (we strongly recommend using an insured courier service). We’ll send you full instructions once we’ve received your payment.

Upgrades are non-returnable / non-refundable. We will return your original attenuator(s) to you with your upgraded item (or dispose of, at your request).