Superlux - HD-668B - Professional Semi-open Enhanced Bass Frequency Response Studio Headphones with Neodymium Drivers

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The HD-668B is a semi-open dynamic headphone whose sound quality meets the demands of even professional recording studios. Its patented sturdy construction provides long-lasting durability even in challenging conditions, yet the headband’s light weight and optimized mechanical pressure provides long-term wearing comfort.

The HD-668B reproduces natural, spatial and accurate sound for all types of music. It features a balanced, contoured and bass enhanced full range frequency response with authentic mid range and high frequency reproduction. HD-668B comes equipped with two detachable straight cables: the short one is one meter long for personal sound source applications and the long one is 3 meters long for professional monitoring applications. Both cables can be connected together for even more distance if desired.

Shipped with a protective storage pouch and gold-plated 3.5mm to 1/4 inch snap-lock adapters, the Superlux HD681 headphones are an excellent choice for a wide range of audio listening tasks and applications.

• 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
• Light weight

Specifications:

Type: Semi-open
Driver: 50mm, double dome, neodymium magnet
Sensitivity: 98 dB SPL, 1mW
Frequency Range: 10 to 30,000 Hz
Rated Impedance: 56 Ohms
THD: < 0.3% @1KHz/1V
Max Input Power: 300 mW
Cords: Detachable, 1 meter and 3 meter, straight
Connectors and Adaptors: Gold plated stereo 3.5mm with 3.5mm to 1/4” phone adaptors
Headband Pressure: ~ 3.5 newtons
Weight: 222 g (7.5 ounces) without cable

Included Accessories

• Protective carry pouch
• Long and short cables
• 3.5mm to 1/4 inch screw-on adapters