Superlux HD681 EVO Professional Monitor Level Headphones - Black Overview:

The best-selling model HD681 is a high quality headphone with rich bass, crystal clear high resolution and accurate sound field positioning. Now the new HD681 EVO upgraded version has a completely new, more slender shape and an improved smoother, more neutral, treble tone. The HD681 EVO easily meets the requirements of stage and studio professionals for a high-quality sound in monitoring headphones.

Features:

• New shape and more slim treble
• 50mm large diaphragm speaker unit to reproduce the precise sound and large dynamic
• Semi-open acoustic design, providing natural sound
• Bag-style design, can be used for a long time to maintain comfort
• Automatically adjust the headband, can provide the best comfort
• Separable, unilateral entry
• Color: Black

Specifications:

• Type : Dynamic, Semi-open 
• Driving unit : Ø50 mm, Neodymium iron 
• Sensitivity : 98 dB SPL (1mW) at 1KHz 
• Frequency response : 10-30,000 Hz 
• Maximum input power : 300 mW 
• Rated impedance : 32 Ω 
• Cap : artificial 
• Clip strength : About 3.5 N 
• Wires : 1 m and 3 m detachable straight line unilateral; 3.5 stereo headphone connector access 
• Connector : 3.5 mm plated perspective linker 
• Weight (without cable) : 265 G / 9.3 OZ
• Color: Black