Powerful Mobile Hi-Fi Headphones The new PHONON 4400, an enhanced iteration of its predecessor, is designed to elevate your audio experience. Explore the acclaimed sound of the Masterpiece SMB-02, a favourite in the professional audio world, seamlessly integrated into the 4400. Compact and foldable, these headphones are perfect on-the-go companions. With its portable design, the 4400 features the same 40mm driver as the SMB-02, carrying the distinctive tuning expertise of PHONON. The 4400 offers exceptional space definition and a sense of speed that defines the signature PHONON sound, delivering a powerful audio experience. 4400 SMB-02G SMB-02 03 STICK SMB-01L SMB-01 Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Buying Options Customer Reviews 4.7 out of 5 stars 9 5.0 out of 5 stars 2 4.4 out of 5 stars 39 3.8 out of 5 stars 7 4.7 out of 5 stars 4 4.0 out of 5 stars 1 Price $280.00$280.00 $320.00$320.00 $280.00$280.00 $180.00$180.00 $629.00$629.00 — no data Construction Type Closed Exchangeable closed and semi-open (option) Closed Stick type mono Exchangeable closed and semi-open Exchangeable closed and semi-open (option) Driver Φ40mm driver Φ40mm driver Φ40mm driver Φ40mm driver Φ50mm driver Φ40mm driver Frequency Response 20 – 22,000Hz 10 – 40,000Hz 20 – 20,000Hz 10 – 24,000Hz 10 – 40,000Hz 10 – 40,000Hz Sound Characteristics Prominent bass, Sonic precision, Less spatial Restrained bass, Solid, Spatial clarity, Vibrant Prominent bass, Sonic precision, Vibrant, Relatively spatial Rich mid-low frequency. Less spatial, Dynamic Prominent bass and treble, Articulate spatial Imaging, Ultra transparent Balanced, Relatively spatial, Vibrant, Transparent Detachable Cable Fixed type ✓ Fixed type Fixed curling cord ✓ ✓ Purpose Portable player, Music production Music production, Game, Hi-Fi audio Professional sound engineering, Hi-Fi audio DJ Professional sound engineering, Hi-Fi audio Professional sound engineering, Hi-Fi audio SPECIFICATIONS Type Enclosed dynamic Driver Φ40mm driver unit Sensitivity 100dB/mW Frequency Response 20 - 22,000Hz Maximum Power 500mW Impedance 46Ω Weight 260g Plug Φ6.3 / Φ3.5mm gold-plated stereo 2 ways plug Cable 1.8m (4 wires LR independent ground connection) Accessories Original pouch