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Superlux HD 681 Dynamic Semi-Open Headphones

4.3 out of 5 stars 338 customer reviews
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List Price: $69.95
Price: $30.49 & FREE Shipping on orders over $35. Details
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  • Freq Range 10Hz-30KHz
  • Max Power 300mW
  • Impedence 32 ohm x 2
  • Sensitivity 98dB SPL/mW
  • Complete with Carrying Pouch
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Frequently Bought Together

  • Superlux HD 681 Dynamic Semi-Open Headphones
  • +
  • Zalman Zm-Mic1 High Sensitivity Headphone Microphone
  • +
  • Cosmos ® 1 Pair Black Color Velvet Replacement Earpad Ear Pad Cushion for AKG K 240 Studio Headphones
Total price: $43.58
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Technical Details

  • Noise Cancellation

Product Description

Type: Dynamic, Semi-open Driver: 50mm, dome type, neodymium magnet Sensitivity: 98 dB (SPL/mW) Frequency Range: 10 to 30,000 Hz Rated Impedance: 32 Ohms

Product Details

  • Product Dimensions: 4.2 x 7.4 x 7.9 inches
  • Shipping Weight: 4.2 ounces (View shipping rates and policies)
  • ASIN: B002GHIPYI
  • Item model number: HD681
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (338 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: April 23, 2009

Customer Reviews

Top Customer Reviews

Verified Purchase
I received the 'phones earlier today, and I've got to say that initially I was surprised at how light they were - especially in comparison to what I've been using (some old Realistic Nova Pros that I picked up at the thrift store.) However, it did not seem that build quality was compromised by this lightness. I was also satisfied by the bulkiness of the cable - it's a few millimeters thick and seems to be sturdy.

This is the first time I've experienced this type of headband style, with a fixed-length frame and a band that slides down to take up slack between your head and the frame. It turns out to be quite comfy. Ear room is more than adequate, and after about three hours of use I am still not experiencing any discomfort related to my head getting hot or to the quality of the ear pads.

The sound is wonderful. If I tweak my equalizer settings, it seems like I can feel air being displaced when the speakers are being driven at lower frequencies. A sensation I do not experience with my Sony MDR-X100s or MDR-V150s. I suspect that the larger drivers play a role here.

The noise isolation isn't anywhere near what it is on my Realistics, but this seems reasonable as these are of a semi-open build. And really, when I've got music playing, I can't hear anything else anyway.

I'd suggest these if you're looking for something comfortable to wear that also sounds and looks good. I can't say whether they're the best bang for the buck as far as the aforementioned points are concerned, but I think they're definitely worth the cost.
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Verified Purchase
These headphones are fairly well reviewed in many audio websites and in this forum, so I'll try to keep this brief and just rate their various qualities (as I see them) on a scale of 1-10:

Aesthetics: (2/10) The headphones look very good but Superlux gets only two points from me here - simply because, aesthetically, the HD681 are less refined AKG (K-240) clones, though the red accents are a nice touch. Cable is one sided but unlike the K240/K240MKII the cable is hard-wired (not detachable).

Packaging: (5/10) The headphones are packaged around a piece of cardboard and wrapped in a plastic wrapper. Not that you'd expect more at their price point but the way they sit in that piece of cardboard makes the cardboard dig into the ear-pads. The indentations left in the ear-pads do begin to fade in time.

Built Quality: (7/10) The HD681 are made of plastic and feature vinyl ear-pads and a metal-wire bridge. The self-adjusting support head-band is also made of some type of vinyl. Overall they feel quite sturdy, the cable is fairly long (about 8ft) and is terminated with a small 1/8in jack. A screw-on 1/4in jack is included. Both jacks are gold-plated. Also supplied is a carrying bag.

Comfort: (6/10) The ear-pads are somewhat on the small size (although they do go around the ears) but they are pretty stiff and they do cause (at least to me) some discomfort. In addition the vinyl makes them get hot even when worn for short periods of time. The HD-681 are very light weight and the self-adjusting head-band works well. Felt/Velour replacement pads from some AKG (and Beyerdynamic) models should work for HD681 but they will likely be more expensive than the headphones.

Sound Quality: (7/10) The HD681 use unexpectedly large drivers (50mm) for their price point.
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Verified Purchase
I purchased the SuperLux HD 681's after reading many reviews (see head-fi.org - [...] for example) and looking for an entry-level hi-fi headphone. I am not an audiophile or bass head, but these headphones have plenty of bass, even when driven with my iPod nano. Bass is a bit more responsive when used with a computer source, however. For comparison, I have a old (20 yrs old) pair of Sony V1 headphones, and tried a pair of Shure SRH 440's Shure SRH440 Professional Studio Headphones (Black). I have not done side-by-side comparisons, but the Sony's are not responsive to deep bass, but have a fairly flat response overall. The Shure's audio quality was amazing (lots of detail & good bass), but I couldn't wear them for more than 1/2 hour without my head & ears (primarily from glasses) starting to hurt. Sony headphones, because they don't have a soft headband, also hurt my head after 1/2 hour or so. Perhaps this is because my head is an odd shape that those types of headphones are uncomfortable. The HD 681's are quite comfortable on my head because of the AKG-like suspended headband, and the ear pads/cups are very large and don't push on my ears enough to cause discomfort, even while wearing glasses.
As for the quality/price, these headphones are well built, I expect them to be very durable like the Sonys. They are mod-able although I haven't done anything to modify mine. [...] has the details.
Sound quality on the HD 681's is good - great bass response, but the mids & highs could be sharper. Again, great sound, very comfortable headphones for the price!
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Verified Purchase
These cans have been talked about in various places across the web for the past couple of years. Why? Because they are cheap, and sound great. I agree. FOR THE PRICE: Bass is tight, not overbearing at all, highs are crisp and mids have decent clarity. Will blow anything for the same price out of the water hands down. However, if you are a modder, BEWARE: If you recable these cans (like I have with mogami 2534), the phone overall gets a bit brighter, but the highs can be fatiguing after a while. I've been listening to them for about 4 months on and off after I've replaced the cables, and I tend to go back to my akg k240s (the phones they modeled these after) because the highs, especially when listening to classical, and music with a lot of cymbals can be taxing on the Superlux. There is a capacitor mod out there that will bring them back down, which would make it a much more pleasurable experience. For now I use them for gaming and computer use, and they work great.

Comfort: I have these phones 3 stars for comfort because the pleather ear cushions get hot after a while, and they are quite shallow, so after a few hours, they get sweaty and my ears start hitting the driver cages which hurts the tops of my ears. This can be fixed with k240 velour pads, or dt770 velour pads (which are much larger and fluffier).

Overall: If you are looking for a budget headphone, for $35, do not hesitate. I've got HD555s, the k240s mentioned above, hd448s, as well as some others, yet I still bought these, I definitely don't regret spending the money. Great buy.
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