2004年10月3日 · You can tell it’s a relative to the HFI-550, but the midrange is much improved, and the highs are smoother and more refined. Directly from the iRiver, the PROline 550 …

The Ultrasone HFI.550's S-Logic technology allows for effective listening to take place at lower levels reducing sound pressure levels to the eardrum by up to 40%. Foldable closed-back, …

2011年12月3日 · Ultrasone's headphones have two Unique Selling Points - S-Logic and low electromagnetic emissions. S-Logic is supposed to give you a wide, spacious, un-headphone …

Foldable, closed-back superior headphones with S-Logic Natural Surround Sound. Through the S-Logic Natural Surround Sound the usual headphone sound will be moved out of the head in …

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Ultrasone HFI-550 S-Logic Closed Back Wired Headphones in great cosmetic and functional condition. Awesome headphones that have seen minimal use and are perfect for mixing or …

The Ultrasone HFI-550 headphones deliver superior quality bass and clear mid-range sounds thanks to its 2-inch Mylar diaphragm. With an impedance of 64-ohms, these Ultrasone …

2024年10月27日 · Find many great new & used options and get the best deals for UltraSone HFI-550 S-Logic WIRED Over Ear Headphones W/Carrying Bag EUC Fast Ship at the best online …

2010年5月5日 · The PRO 550 (formerly the PROline 550) builds on the immensely popular HFI-580 (formerly the HFI-550) to create a professional headphone that is both durable and …

Buy the Ultrasone HFI550 HFI Stereo Headphones at Planet DJ. Low VIP Pricing, Financing and Free Shipping on most gear.