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Typically that specification will be expressed as a range of power such as 20-200 W (per channel). It is important to understand what those numbers mean when choosing a receiver or amplifier for your Polk loudspeakers. The lower number indicates the lowest continuous rated power that will yield acceptable performance in a typical listening environment. The higher number indicates the highest per channel power that should be used with your Polk speakers. That number should not be confused with a “Power Handling” specification and it does not imply that the speaker will safely handle that full amount of power on a long-term basis. We specify a wide range of power ratings because not all electronics manufacturers use the same method for rating power. In fact, high quality lower-rated amplifiers sound better and play louder than low quality units with a higher power rating. Automobile horsepower is a good analogy. Your car probably has far more horsepower than it needs for your daily commute and is likely capable of going well over 120mph (190km/hr). Having that extra power is good for on-ramp acceleration and danger avoidance (like getting away from brain-eating zombies) but that doesn’t mean that it is advisable to operate your car on North American highways at full power and maximum speed for an extended period of time. Just ask your local state trooper if you are in doubt. Similarly, we recommend using amplifiers and receivers with rated power above the Power Handling limits of our speakers because having extra power available for short term peaks is conducive to better sound quality, maximum dynamic range and effortless high volume output. But we strongly urge you not to use the full power of your amplifier or receiver for daily listening. Loudspeakers can be damaged when an amplifier, regardless of its wattage, is made to play at higher listening levels than its power can clearly produce. Operation at this level can result in very high levels of audible distortion originating in the amplifier, which can add a harsh, gritty sound to your listening material. If you hear distortion—turn the volume down or risk damaging your speakers. You can damage just about any speaker, regardless of power rating, if you drive an WARNING: LISTEN CAREFULLY Polk Audio loudspeakers and subwoofers are capable of playing at extremely high volume levels, which could cause serious or permanent hearing damage. Polk Audio, Inc. accepts no liability for hearing loss, bodily injury or property damage resulting from the misuse of its products. Keep these guidelines in mind and always use your own good judgment when controlling volume: • You should limit prolonged exposure to volumes that exceed 85 decibels(dB). • High volume in an automobile can hinder your ability to safely operate a vehicle. • You are responsible for knowing the local laws governing acceptable mobile volume levels. Refer to the Occupational Health and Safety Administration (OSHA) guidelines at: Polk Audio Customer Service is available from 9am–5:30pm, EST, Monday through Friday, at 800-377-7655 (US & Can only, outside the US please call 410-358-3600) or email us at polkcs@polkaudio.com Please do not hesitate to call us if you have questions about your speaker system. We love this stuff. Product Disposal—Certain international, national and/or local laws and/or regulations may apply regarding the disposal of this product. For further detailed information, please contact the retailer where you purchased this product or the Polk Audio Importer/ Distributor in your country. A listing of Polk Audio Importer/ Distributors can be found on the Polk Audio website or by contacting Polk Audio at 5601 Metro Drive, Baltimore, Maryland 21215, USA— Phone: +1 410 358-3600. DXi: High Performance Car Speakers ENGLISH AMPLIFIER HOOKUP NOTE: USE WITH 2 OHM COMPATIBLE AMPLIFIERS. NOT ALL AMPLIFIERS ARE STABLE INTO A 2 OHM LOAD (ESPECIALLY IN BRIDGED MODE). PLEASE CONSULT YOUR AMPLIFIER’S OWNER’S MANUAL. SPECIFICATIONS DXi108 Type subwoofer enclosure/slot ported Frequency Response 30 Hz -200 Hz Driver Complement 1 -8" diameter Nominal Impedance 2 Ohms Recommended Amplification Range 50 -300 Watts Power Handling (RMS) 180 Watts Power Handling (Peak) 360 Watts Efficiency 90 dB Dimensions Bottom Depth: 12 1/2" (317.5mm) Top Depth: 10 1/4" (260.4mm) Height: 12 3/8" (314.3mm) Width: 15 3/4" (400.1mm) Product Weight 24 lbs (10.9 kg) Shipping Weight 27 lbs (12.2 kg) More Info @ FRANCAIS LIMITES D’OPERATION Polk Audio specifie la gamme de puissance d’amplification recommandee pour chacun de ses haut-parleurs non amplifies. Cette specification est typiquement exprimee en watts par canal (par ex. 20-200 w/Canal). Il est important de bien comprendre la signification de ces chiffres avant de choisir un amplificateur ou un recepteur pour vos haut-parleurs. Le premier chiffre indique la puissance nominale minimu...