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 - quiet between steps (no cracking or fluffing) and exceptionally smooth operation.
  • Upgraded silver plated 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). 

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