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Massdrop x Koss ESP/95X Electrostatic System

overview

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reviews318

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Massdrop x Koss ESP/95X Electrostatic System

Name: Massdrop x Koss ESP/95X Electrostatic System
Brand: Drop
SKU: massdrop-x-koss-esp-95x-electrostatic-system
Price: 390 USD
Availability: OutOfStock
Rating: 4.320755 (318 reviews)

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Product Description

A revival of the standard-setting ESP/950 released by Koss in 1990, these headphones bring electrostatic quality into a whole new price bracket. Initially designed for live recording, the ESP/950 came with a large carrying case and a battery pack to power the required energizer: a special amplifier for electrostatic drivers Read More

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overview

specs

reviews318

photos142

q&a14

discussions1.5K

Want to know something about this product or how to use it?
Ask the community!

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The_Hipster_Cow

Jan 28, 2021

When are you going to restock the 120V model?

Answer

Sope

Mar 4, 2021

I've been wondering the same.

Jan 21, 2021

How does an electrostatic system differ from other types of headphones?

Answer

magalahi

Feb 1, 2021

Here are some resources I used to learn about it: https://www.youtube.com/watch?v=sYaLBPUZnkY
https://youtu.be/z4vbnaeyiMw
https://www.youtube.com/watch?v=kUgGEQ4aDVc

Drop+Audiophile

3472

Official

Jan 21, 2021

Do you need to keep these covered to protect from dust?

Answer

Starfall119

Mar 16, 2021

They have two foam covers over either side of the stators and driver membrane. So they aren't as defenseless to dust as Stax or other Electrostats.

ihtrq

Mar 29, 2021

Starfall119I'm pretty sure most Stax use some kind of PVC filter across the drivers. Or that's what I'm told. It's the ESP/950s which are apparently infamous for getting dust inside them. Thus, why it's so common for people to advocate using Koss' lifetime warranty.

Vote

NotDai

Apr 11, 2021

ihtrqA redditor once did a teardown, and there actually is a crumpled mylar film it seems. That said, people like the dude who makes Nectar estats says in his experience operation without dust protection is fine... and foam suffices as sufficient protection when not in use or in use too (see the FAQ for Nectar). My personal hypothesis is that Koss's issue is not external dust, but dust from production trapped with the driver and messing with it. My first unit was faulty out of box and for two weeks no tapping, blowing, etc would resolve the persistent squealing in only the left side. My replacement is perfectly fine. Squealed a bit on start up, but a tap solved everything since then. Have left it uncovered for about two months without any issue, though I still do cover it now just in case I am wrong. The internal dust issue is still worrisome, but I don't think external dust is much of a worry really.

Vote

Harrye77

Feb 14, 2021

Any idea on 120 volt restock

Answer

Leeethal

Feb 25, 2021

KOSS said they might bring it back. That's good because I hate the velour and actually think the pleather is MUCH, MUCH, nicer. I hope they improve it somewhere because that would really be an incentive to buy it. I want the WHOLE kit again. Damn, it was complete for anything.