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’ll send you full instructions once we’ve received your payment. If you're unsure what mark / model your existing amplifier is, and if it can be upgraded, please don't hesitate to contact us.

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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