Superlux HD-668B Professional Semi-Open Studio Headphones

Superlux HD-668B Professional Semi-Open Studio Headphones

Superlux HD-668B Professional Semi-Open Studio Headphones

B&H # SUHD668B MFR # HD-668B

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Product Highlights

  • Dynamic, 50mm Neodymium Drivers
  • Circumaural, Semi-Open Design
  • Extended Bass Response
  • Self-Adjusting Headband
  • Lightweight and Comfortable Fit
  • 2x Detachable, Single-Sided Cables
  • Includes Pouch & Screw-On 1/4" Adapter
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Superlux HD-668B overview

  • 1Description

The HD-668B professional headphones from Superlux are intended for accurate music reproduction with full-range frequency response (10 Hz to 30 kHz) and bass-enhanced low ends. Featuring a rugged, lightweight (at 7.83 oz) construction and an optimized-pressure headband design, these headphones are well equipped to withstand the challenging conditions of a recording studio environment, while offering long-lasting wearing comfort during extended listening sessions, to audio professionals and musicians alike.

The HD-668B features thick, around-the-ear earcups which provide sound isolation from unwanted noise and help eliminate "headphone bleed" when recording in the studio. The semi-open design delivers a natural sound while still offering deep bass response and minimal sound leakage. Two 50mm neodymium drivers deliver a natural, spatial, and accurate sound ideal for a wide variety of musical genres.

The headphones come with a protective storage pouch, a gold-plated 1/4" adapter, and two detachable straight cables (3.28' and 9.84' in length).

Circumaural, semi-open stereo headphones intended for use in professional applications
Bass-enhanced full range frequency response with authentic midrange and high-frequency reproduction
Dynamic, 50mm drivers deliver natural, spatial, and accurate sound for wide range of musical styles
Neodymium magnets for maximum energy and minimum size
Thick, around-the-ear earpads and headband with optimized mechanical pressure – provide long-lasting wearing comfort
Comes with a short 3.28'-long detachable straight cable for personal sound source applications and a 9.84'-long detachable straight cable for professional monitoring applications – both cables can be connected together for more distance if desired
Lightweight, durable construction
Protective storage pouch and gold-plated 1/4" adapter included
In the Box
Superlux HD-668B Professional Semi-Open Studio Headphones
  • 3.28' (1m) Detachable, Straight Cable
  • 9.84' (3m) Detachable, Straight Cable
  • Screw-On, Gold-Plated, 1/8" Stereo Mini Jack to 1/4" TRS Phone Adapter
  • Protective Storage Pouch
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Superlux HD-668B specs

    Headphone
    Driver Size 2" / 50 mm
    Driver Type Dynamic
    Magnet Type Neodymium
    Design Over-Ear (Circumaural)
    Earcup Style Semi-Open-Back
    General
    Frequency Response 10 Hz to 30 kHz
    Sensitivity 98 dB at 1 mW
    Impedance 56 Ohms
    Maximum Power Handling 300 mW
    Total Harmonic Distortion (THD) 0.3%
    Connectivity
    Audio Connector 1/8" (3.5 mm) TRS
    Connector Plating Gold
    Adapter (Included) 1/4" (6.3 mm) TRS
    Cable
    Design Single-Sided
    Detachable Yes
    Cable Length 9.8' /  m
    3.3' /  m
    Physical
    Weight 7.8 oz / 221.1 g 
    Packaging Info
    Package Weight 1.4 lb
    Box Dimensions (LxWxH) 9.2 x 8.9 x 4.4"

    Superlux HD-668B reviews

    HD-668B Professional Semi-Open Studio Headphones is rated 5.0 out of 5 by 2.
    Rated 5 out of 5 by from Colored sound, but nonetheless...and I recommend them! I saw no reviews here so I decided to write one. When I received my HD668B after reading people on Head-Fi rave about them, the first thing I noticed was what they highlighted: the harsh, grainy treble. It was really evident, akin to a metallic sheen all over their sound signature. But after listening to my favorite tracks on them, that edgy, cutting treble made me start liking them, because it made them sound so different from my other headphones, which are: Audio-Technica ATH-M70x Sennheiser HD 598 SE Sennheiser HD 239 Panasonic RP-HT480C-S Technics RP-DH1250-S Beyerdynamic DT 990 Pro 250 I've also owned Sony MDR-7506 and Panasonic RP-HTF600-S, which like these HD668B I'm reviewing, I gave away months ago to friends who never before experienced good-sounding headphones. I miss all three, and plan to purchase them again soon. To be honest, the Superlux started sounding better and less harsh the more I played music through them. The bass is not deep or boomy, but it is solid and it's there. I would not like more of it. Out of all my headphones, these Superlux have similarities with my DT 990 in that the mids are not their strength, but the super sharp treble. So these headphones, just like the DT 990, sound thinner to my ears. But that does not prevent me from enjoying them. They have their own sound signature, so unique, I could tell them apart from any other headphones. Isn't that the point of having different headphones? I recommend these HD668B if you want something different to have fun with your music. I have no complaints, and I even like their light, cheap-looking build, because funnily, to my developed ears they do not sound cheap at all. I hear everything I hear on my expensive ones with them, just in different quantity and quality. They lack the budget sound most affordable headphones have. I did not use audiophilic adjectives to describe them, because I don't do that. Sadly, most people expose and invest in their ego the more they spend on headphones, and they end up giving them poetic, unrealistic qualities, but it's just their overactive imagination. There is a wall in terms of what you can hear, and contrary to what marketing and audiophile gang mentality tells you, no brand or price point can break through it. The plain truth is the HD668B HAVE PIERCING HIGHS, thin mids and solid, tight bass...and I recommend them. They are harder to drive/less sensitive than other phones, but they also sound better with a good amp/DAC. My opinion is that the Superlux HD668B sound more expensive than $40, and because of their tight bass, recessed mids and harsh treble, I endearingly call them baby DT 990 even if they sound nothing like them. We should enjoy headphones individually instead of bench-marking them against each other. Comparisons sucks the fun out of ANYTHING. I once blind-bought (well, DEAF-bought) JVC HAS160 FLATS and really liked them for being $10. I owned the MDR-7506 at the time and I made music with them and enjoyed it on the JVCs. ENJOY, do not compare. Life is short. Why criticize a banana for not having the sweetness and nuanced flavor complexity of a mango? I LOVE mangoes more than any other fruit, but I would NEVER slice them and put them in my corn flakes like I do with bananas. ;) God bless you!
    Date published: 2017-05-16
    Rated 5 out of 5 by from Low price but great sound quality I listen to music and I play games with this headphone. Sound quality is great! But the earpads are not good. It's gets hot when wearing them for hours. I wish it had a different earpads. But overall 5/5 rate on this headphone.
    Date published: 2017-08-16
    • y_2018, m_11, d_15, h_16
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    Superlux HD-668B Q&A

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