The bigger brother of the HD681, the 668 improves the sound quality with a deeper mid-bass and sharp treble for pinpointing bullet zings. A great entry level headphone!
The HD668 makes improvements to the general design on the HD681 with deeper bass and a detachable cable (two lengths included) while still maintaining that unexpectedly wide soundstage delivered by their innovative semi-open back design. It’s like the HD681 leveled up and took a few perks.
Entry Level Studio Quality Headphones
Detachable Headphone Cable
THIS PRODUCT IS ONLY AVAILABLE TO US SHIPPING ADDRESSES.
Features from the manufacturer
High resolution drivers
Precision tuned acoustic chamber
Extended bass response
Patented durable structure
Comfortable, self-adjusting headband pads
Comfortable, long-lasting ear pads
Detachable, single side cables
Optimized headband pressure
Fit: Over Ear
Driver Size: 50 mm, double dome, neodymium magnet
Sensitivity: 98 dB SPL, 1mW
Frequency Response: 10-30KHz
Impedance: 56 Ohms
THD: <0.3% @1KHz/1V
Maximum Input Power: 300 mW
Cords: Detachable, 1 meter and 3 meter, straight
Connectors and Adapters: Gold plated stereo 3.5mm with 3.5mm to 1/4" phone adaptors