Price: $50 (MSRP $59.99)
Wear style: Over-ear (Semi-open)
In Short: An accurate studio headphone that can be directly compared to the much more expensive AKG K601/701. The sound signature is cold due to its neutral bass, thinnish mids, and shimmering highs.
Starting with construction, the HD668B is light due to its plastic build. The winged headband design feels frail, but it was clearly not designed for portable use. Good enough for normal wear and tear.
Clamping force is not excessive but certainly present. Despite being semi-open, the HD668B has surprisingly good noise isolation: and low to medium volumes the sound is nearly imperceptible to those around you in a quiet room.
The sound quality is one of the best under $100 granted you enjoy a slightly cold presentation. The bass is well defined until you get to the sub-bass region where it shies away. Bass is not emphasized, so the HD668B is more suited for studio use or analytical listening.
Mids are a hair laid back and sound a bit thin, but they are some of the clearest and detailed under $100. The shiny treble is able to reveal details that are simply not audible with most budget and entry-level headphones. Those that are sibilant-sensitive will want to stay away – the HD668B don’t mask any harshness present in original recordings, which is especially true when watching low-res online videos or listening to lossy sound files. The soundstage is spacious and instrument layering is good as well.
For those searching for studio quality sound, the HD668B is an excellent value option. Its accuracy and attention to detail are incredible for the price and make it hard to pass up. It is very similar to the AKG K601 and K701, just not quite as refined.
|Driver type||50mm Dynamic|
|Sensitivity||98 dB SPL/1mW|
|Frequency Response||10 – 30,000 Hz|
|Cables||9.8ft (3m) and 3.3ft (1m) single-sided detachable with straight plug|
|Included accessories||1/4″ adapter, cable clip, carrying pouch|
|Recommended ear pads||AKG K240/270/271 Velours|