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SOLD: KOSS ESP950 Electrostatic Headphone with 9v power supply upgrade


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Item: KOSS ESP950 Electrostatic Headphone and new power supply

Location: NSW

Price: $650+shipping

Item Condition: cosmetically and electronically mint.

Reason for selling: To fund a new setup
Payment Method: Pickup - Cash, Paypal, bank transfer
Extra Info: Key Features:

  • Electrostatic transducers deliver clean bass and unmatched sound quality
  • Pivoting ear cups and an adjustable/detachable headband ensure ultimate comfort and convenience
  • Straight, dual-entry 4 foot cord with 6 foot extension
  • Includes energizer, battery pack, leather carrying case, connecting cables and 120 VAC adapter
  • Covered under the Koss Stereophones Limited Lifetime Warranty

 

I got this gift several month ago, and probably got at most ~50-100 hours on it, so it is in like-new condition. From what I read from internet (see above), KOSS provides a lifetime warranty on ESP-950. It comes with the original 100v power supply (never used in Australia), which has been considered as a bottle-neck for the performance. So I ordered a customised power supply (240v input) with a much better toroidal transfermer, which delivers a much cleaner and more power to the amp. This upgrade in all the ways improve the sound. You will get everything including power supply, cables, manual, bags and original cas.

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Edited by woodhead
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