Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Polk Audio TSx 150C Center Channel Speaker - Cherry
Product description: Polk TSx150c 3-way High Performance Center Channel Loudspeaker, Heavy duty, detailed center channel performance from a beautifully compact loudspeaker with a reversible enclosure for easy placement in any system. Rear-firing flared bass port minimizes port noise ("chuffing") and smoothly blends low frequency response with the speaker’s overall dynamics, for the kind of wide dynamics you want in a center channel speaker.
Product feature: TSx Series bi-laminate composite driver cones, tuned perfectly with our Dynamic Balance process, produce smooth, natural sound. They are lightweight, but super stiff, with exceptional damping, for high efficiency and low distortion., All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems., Reversible, aimable, all-MDF enclosure is non-resonant, and features a 5/8-inch-thick baffle, for heavy duty high performance in a center channel speaker., Gold-plated, professional-style 5-way binding posts, for the most secure connection options., 5 YEARS parts and warranty
Product brand: Polk Audio
Target attributes: Use
Answer: attribute: use
value: None
source: None