User manual JBL ARC SUB 10

[. . . ] It enables us to keep you posted on our latest advancements, and helps us to better understand our customers and to build products that meet their needs and expectations. JBL Consumer Products read first! CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: To prevent electric shock, do not remove the grounding plug on the power cord, or use any plug or extension cord that does not have a grounding plug provided. Do not use an adapter plug with this product. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. [. . . ] The product does not operate normally when following the operating instructions. Adjust only those controls that are covered by the operating instructions, as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation; or e. The product does not appear to operate normally or exhibits a marked change in performance. Do not use attachments not recommended by the product manufacturer, as they may cause hazards. When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards. Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage or other hazards. All the safety and operating instructions should be read before the product is operated. The safety and operating instructions should be retained for future reference. All warnings on the product and in the operating instructions should be adhered to. The product should not be used near water ­ for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, and the like. Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult, and serious damage to the product. [. . . ] If there is low bass output, check the following: · Make sure the connections to the left and right "Speaker Inputs" have the correct polarity (+ and ­). · Make sure that the subwoofer is plugged into an active electrical outlet. If you used the line-level inputs and there is no sound from the subwoofer, check the following: · Receiver/amplifier is on and a source is playing. [. . . ]