Name: HD660
Brand: Superlux
SKU: 70912
Rating: 3.9 (66 reviews)

HD660 is perfectly good for listening to music too
detailed but lively and fun
smoother and more refined phone

not just an exchange during warranty period
the cable is too short The Headphones provide little comfort
EI has lost its presence on the EU market

Impedance: 150 Ω
Frequency range: 10, 30000 Hz
Acoustic design: Closed
Sound output: Stereo
Style: Over-Ear
Connectivity technology: Wired

Superlux HD660 - Pros & Cons

HD660 is perfectly good for listening to music too
detailed but lively and fun
smoother and more refined phone
Fast with a good amount of tightly controlled bass
punches fast
tight and the impact is good
Sony's mids are nice and warm
is great for vocals and live performances as well
mids are nice
full bodied and tube like
HD660 is superb for Rock
HD660 is more fun in terms of bass
tonal balance of the HD440 is quite good as well
clarity and directness makes up for it
Excellent comfort Very good isolation Nice balanced sound
balanced clear and energetic sound
The fit of the headphones is excellent
the fit is comfortable and the handling is unproblematic
The reproduced dynamics are also good
the surface is soft and feels good on the skin
snare have also a good color and presence
It looks quite good for a 40 headphone
units are very pleasant and decent headphones

not just an exchange during warranty period
the cable is too short The Headphones provide little comfort
EI has lost its presence on the EU market
No one frequency takes position over another
cans are not that hard to drive
there is no real depth in the soundstage
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Not bass light but rather lacks impact
have a very long burn in time
ears tend to get a little hot from prolonged use
the trebles are not obtrusive
Transients in particular are reproduced with punch
weaker preamplifiers such as those used in mobile devices lose some of their playback volume
weak point is the bass extension and tone probably
The inner circle of the stock pad were too small for my ears
The low mids are a little recessed
this headphone is quite hard to drive

Superlux HD660 - Technical Overview

	Poor	Average	Good	Excellent
Driver size	40 mm Best: Hauppauge XFones Driver size: 400 mm
Impedance	150 Ω Best: Stax SR-L500 Impedance: 145000 Ω
Weight	250 g Best: Cyber Acoustics ACM-7002 Weight: 0.11 g

Superlux - Video Reviews (7)

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Superlux HD660 - Full Specifications

Sound output	Stereo
Style	Over-Ear
Connectivity technology	Wired
Headset (integrated/enclosed microphone)	no

Weight	8.82 oz

Cable length	3
3.5 mm/6.3 mm adapter included	yes
Type of connector	3.5mm
USB	no
Detachable cable	no

Colour of product	Black Black,White
Acoustic design	Closed
Attachment type	Headband
Connector contacts plating	Gold

Impedance	150.0 Ω
Frequency range	10 - 30000
Driver technology	Dynamic
Driver size	1.57 in

Battery operated	no
Power handling capacity	100.0 mW

Superlux HD660 - Q&A

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Superlux HD660 Superlux - Editorial Reviews (2)

Audiophile On

Published: 26.03.2021

Superlux HD660 Review

Audiophile on reviews the Superlux HD660 a cheap studio monitor headphone that promises to offer buyers great design and some of the best sound under $50.