Sennheiser MX-5 (MX-500的叔父輩, 相信在市面也不好找, 但既然有這麼出色的後代, 所以也來談論一下..) (圖片也不好找, 這張算較為清晰)



規格如下:-

Frequency Response 20-22,000 Hz
Impedance 16.5 ohms
Sensitivity 106 dB SPL at 1 mW
Signal Cable 3 feet w/ volume control
Termination Right angle stereo 1/8" mini phone plug 1/4" adapter included
Weight 0.21 oz.
Color Black with gold decorative rings,silver logo
Storage Case Black with blue Sennheiser logo

Sennheiser MX3/4/5的音圈比同期的SONY耳塞音圈長大概0.2mm左右，給予比較clear treble and good midrange with some bass, 但總體而言表現應不及MX500.