Upgrade your NVA P50 passive preamplifier or AP50 / AP70 integrated amplifier

Upgrade your NVA P50 passive preamplifier / AP50 or AP70 integrated amplifier:
  • A superb new stepped attenuator - silent between steps (no cracking or fluffing) and exceptionally smooth operation (no clicks between steps).
  • 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).