This amplifier is designed to provide an extremely high quality dynamic headphone stereo output from a standard 1/4 inch jack. The unit should remain powered-up indefinitely for best sound -- power consumption is minimal. Connect a CD player or DAC to your AP10H and marvel at what you've been missing with your headphone listening up to now.
The external power supply option brings a worthwhile upgrade in depth, scale and transparency.
We are so confident in the quality of our products and designs that we offer a 30 day no-quibble returns policy.
Listen to NVA in your own system, in your own room - the best way to judge any item. If not 100% delighted, return it to us for a refund.