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MX 450/MX 550 Headphones | Streetwear Headphones Cat. No. 500230 MX 450 Cat. No. 500231 MX 550 General Description The MX 450 and MX 550 are stereo earphones with symmetrical connection cable and a sound protection system for protecting their high-performance systems. They feature the new “Basswind” system for a powerful bass performance and come in a practical case withcord-winder. The MX 550 is additionally fitted with an in-line volume control. MX 450 MX 550 Technical Data – MX 450 Frequency response ................................................. 18 – 21,000 Hz Transducer principle.................................................. dynamic, open Nominal impedance ....................................................................16 Ω Max. SPL ..................................................... 113 dB at 1 kHz, 1 Vrms THD ................................................................................................< 1 % Ear coupling ........................................................................intra-aural Weight (without cable)...............................................................13 g Connector ................................................................3.5 mm jack plug Connection cable.................................... approx. 1 m, copper cable Technical Data – MX 550 Frequency response ................................................. 18 – 21,000 Hz Transducer principle.................................................. dynamic, open Nominal impedance ....................................................................16 Ω Max. SPL ..................................................... 113 dB at 1 kHz, 1 Vrms THD ................................................................................................< 1 % Ear coupling ........................................................................intra-aural Weight (without cable)...............................................................13 g Connector ........................................right-angled 3.5 mm jack plug Connection cable.................................... approx. 1 m, copper cable Features j Metal sound protection system shields the capsules from damage j “Basswind” system for powerful stereo sound j Good bass performance j Symmetrical connection cables with moulded anti-kink sleeves j Case with cord-winder j MX 550 with additional volume control j Colours: silver (MX 450), black-metallic with silver decorative element (MX 550) 18-21,000 Hz 16 Ω <1% 3.5 mm OFC approx 1 m 13 g