Massdrop x Koss ESP/95X Electrostatic System
Massdrop x Koss ESP/95X Electrostatic System
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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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oniongrass
0
Nov 29, 2020
As I understand the energizer design, there's a 9V power supply, then a DC-DC transformer to bring it to the scale of 600V. The DC-DC conversion involves chopping first, so at that point you have an AC signal again. Couldn't one just take wall current and tap into the transformer (the turns ratio will be closer to 1, so can eliminate many turns on the longer side), bypassing the initial smoothing and chopping?
Barondla
146
Nov 27, 2020
@Drop, will this Black Friday sale price be available until 11-29? If so I'll pick up a second set of these wonderful headphones. Thanks
zep483
636
Nov 26, 2020
Great honest, excellent review I found. I need more of these, these days. Earned my subscription on YouTube immediately: https://www.youtube.com/watch?v=XE03-OIOq6w&lc=Ugzmif_YRBpzY30LCJh4AaABAg

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Zoey_Ang
0
Nov 26, 2020
I have DT1990 Pro, Monolith M1060, HD58X, SHP 9600 for open back, 1more Triple Driver Over Ear and V Moda M100 for closed back. Should I buy ESP 95X or DT 177X? Their current price are about the same!
NotDai
7
Nov 30, 2020
Depends. The 95X may not have a tonality you like and does not have bass slam, but it has amazing detail retrieval. If your priority is detail > "fun" sound, yes. If you cannot handle the possibility of having squealing, buzzing, ticking, humming in your drivers, no. They are quirky, but I can forgive it's faults because I absolutely love the detail retrieval amd uniqueness-factor you cannot get with any other headphone of equal price.
Zoey_Ang
0
Dec 2, 2020
Hey thanks for the reply. I would love to try out electrostatic, but my biggest fear is the quirks of the drivers too. I'm guessing I'll give it a miss. Hopefully one day drop and Koss will be able to fix the problem.
trellus
337
Nov 22, 2020
$390 was too good of a price to pass up 😅 looking forward to hearing electrostatic for the first time... yes, I know these are baby stats but still 😌
thomaslux
27
Nov 14, 2020
If these didn't have to be hermetically-sealed under the biodome to function properly they'd be a good deal. Listened to a friend's set last weekend and they sound great, but it's like his third pair and the coil whine is real. If you spend $500 on headphones you shouldn't have to deal with shit like that.
Unborn_Jimmy
21
Nov 3, 2020
Do you need to cover these at all times to protect them from dust like stax? I just want to know what I must do to keep these in good condition. That is if I get them
you’re welcome 😌
demicannon
2
Oct 25, 2020
These headphones appear to be extremely susceptible to external Electrical noise. If you hear noise, check if the washing machine is running.
(Edited)
Unborn_Jimmy
21
Nov 3, 2020
Is this perhaps because they are open or are you saying that the signal gets funky
demicannon
2
Nov 22, 2020
Electrical noise flows through various paths.
JSLEE
31
Oct 23, 2020
Koss ESP95X vs. THX AAA 789+Sennheiser HD6XX AAA789 is a terrific amplifier, however, as I posted somewhere else, even this amp can’t make HD6xx to match Koss ESP95X. AAA789+HD6xx combo now costs above $500 and that means ESP95(with it’s own energizer) is cheaper. Mid and high details are excellent on ESP95X and beats HD6xx with wide(?) margin. Sound stages for both headphones are good(draw?) HD6xx edged ESP95X in bass reproduction capability though. Except little bit weaker(or lighter) bass, Koss’s the definite winner for me.
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ps) Even with a powerful amp like AAA789, balanced connection was better with Sennheiser. That’s not because of balanced structure itself, but because simply it delivers more POWER. If you own a headphone with high impedance like HD6XX, the more power your amp has, the better your headphone sounds(even with low volume level)
JSLEE
31
Oct 23, 2020
Oh, I forgot the extra cost for the balanced cable and a 2.5mm to XLR adapter for HD6XX.
timotee
30
Sep 24, 2020
I've just written up my thoughts on the Koss ESP95X, please feel free to take a look over on my website: https://www.modioaudio.co.uk/blog/koss-esp95x-artisan-sound-in-a-thoroughly-mediocre-package. If you can look past the obvious quirks such as the poor construction and occasional whining/popping sounds then you are left with the most natural sounding headphone I've ever heard.
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