Established in 1996, China Deland Electronics Co., Ltd. is located in Ningbo City, one of the most important seaport cities in China. We specialize in research &development, 4 speaker manufacturer and selling cleaner, headlamp, flashlight, headlight. Certification to ISO9001, CE, FCC, RoHS together with numerous prestigious contracts are testament to our company's performance in attaining its objectives. Currently, our design and custom 4 speakers products are very popular in the USA, Europe(UK, France, Germany, Italy), South Asia, Canda, the Middle East, Japan and Hong Kong.

POWER HANDLING, PEAK 200 Watts; MAGNET STRUCTURE, 20 OZ. IMPEDANCE, 4 OHM; FREQUENCY RESPONSE, 100 Hz ¿ 18 kHz; SPL 1 WATT/1 METER, 90 dB. CONE MATERIAL, POLY INJECTION. VOICE COIL, 1-Inch ALUMINUM; TWEETER, 1-Inch POLYIMIDE DOME. MIDRANGE, N/A. CHAOS speakers from the Boss sound as great as they look. The bright red metallic poly injection cones produce crystal clear sound. Butyl rubber surrounds provide smooth response and durability. Great Sound Quality and Value from the Mobile Audio experts at Boss. Boss CH4220 features: Power handling, Peak 200W / Magnet structure - 20 oz / Impedance - 4 ohm / Frequency Response: 100 Hz - 18 kHz / SPL 1 watt/1 meter: 90 dB / Cone material-Poly Injection / Voice Coil - 1'' Aluminum / Tweeter - 1'' Polymide Dome. 5.25'' Polypropylene woofer cone High density ferrite magnet 1'' Hi-Temp ferro fluid enhanced voice coil 1'' Mylar dome tweeter 60 Watts rms/120 watts max power Frequency response: 55 - 20k hz 4 Ohms impedance

POWER HANDLING, PEAK 200 Watts; MAGNET STRUCTURE, 20 OZ. IMPEDANCE, 4 OHM; FREQUENCY RESPONSE, 100 Hz ¿ 18 kHz; SPL 1 WATT/1 METER, 90 dB. CONE MATERIAL, POLY INJECTION. VOICE COIL, 1-Inch ALUMINUM; TWEETER, 1-Inch POLYIMIDE DOME. MIDRANGE, N/A. CHAOS speakers from the Boss sound as great as they look. The bright red metallic poly injection cones produce crystal clear sound. Butyl rubber surrounds provide smooth response and durability. Great Sound Quality and Value from the Mobile Audio experts at Boss. Boss CH4220 features: Power handling, Peak 200W / Magnet structure - 20 oz / Impedance - 4 ohm / Frequency Response: 100 Hz - 18 kHz / SPL 1 watt/1 meter: 90 dB / Cone material-Poly Injection / Voice Coil - 1'' Aluminum / Tweeter - 1'' Polymide Dome. 5.25'' Polypropylene woofer cone High density ferrite magnet 1'' Hi-Temp ferro fluid enhanced voice coil 1'' Mylar dome tweeter 60 Watts rms/120 watts max power Frequency response: 55 - 20k hz 4 Ohms impedance

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