“The Radical headphones from PopClik have never been spoken of before on Head-Fi, to my knowledge. These headphones are a consumer-oriented pair of headphones that I was honestly impressed by. [[SPOILER]] Accessories- Hard carrying case The carrying case is pretty good for a stock headphone accessory. It feels much more well made than some of the cases I've come across (I.E. Klipsch). It's no...” --pro1137
TK100 using lightweight aluminium alloy material, as well as the cavity structure of human body engineering, making the sound in terms of low frequency or the high frequency part is regular headphones, 13 mm titanium diaphragm dynamic speaker, resolving power, better sound field is more wide, more details.
High-end offering from German headhpone company 'Manta' (manufactured by Calrad Imports Inc.*) in 1974. *Reference Needed Impedance Rating in Ohms 4.0 minimum and 16.0 maximum Frequency Response Range Hz 30.0 to 15000.0 Headset Cord Length 84.0 inches nominal Earphone Element Type Dynamic Earphone Cushion Material ...