Do these come in white?

Thanks for your question. The Polk R300 is available in black or walnut. White is not offered. World Wide Stereo is 43 years old and a proud authorized Polk Audio dealer.

Can a marantz cinema 50 powering only the center and 2 surrounds, l/r on external amp, power the r300 to get the most out of the speaker?

Yes, the Marantz Cinema 50 will power the Polk Audio R300 nicely. This will make for a great pairing.

I have a 20” wide hole theater cabinet. the blacks and sides are sealed. should this work despite the port? should i “open” the cabinet in the rear?

Thanks for your question. Fully Sealed Speaker Enclosure: Eliminates chuffing and distortion for crisp, clear, easy to understand sound. It has no port. World Wide Stereo is 43 years old and a proud authorized Polk Audio dealer.

Can this center take a full 200watts from an external amp that bridges at 200watts x1 into 8 ohms?

Most of the time when a two channel amplifier is operated in bridged mode there is an increase in crossover notch distortion. Most amplifiers sound best when left unbridged.

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Specifications

Is Electric	Yes
Power Source	Corded Electric
Speaker Maximum Output Power	200 Watts
Subwoofer Connectivity Technology	Wired
Connectivity Technology	Wired
Audio Driver Type	Dynamic Driver
Item Weight	19.8 Pounds
Item Dimensions D x W x H	1"D x 1"W x 1"H
Unit Count	1.0 Count
Impedance	8 Ohm
Number of Audio Channels	5.0
Frequency Response	50 KHz
Compatible Devices	Home Theater
Speaker Size	5.25 Inches
Woofer Diameter	5.25 Inches
Tweeter Diameter	1 Inches
Water Resistance Level	Not Water Resistant
MP3 player	No
Specific Uses For Product	For Televisions, For Surround Sound Systems, For Music Players
Controller Type	Button
Color	Black
Is Waterproof	False
Warranty Type	Limited
Audio Output Mode	Stereo
Mounting Type	Wall Mount
Material Type	Acoustic Suspension
Speaker Type	Center Channel
Additional Features	Rubber Feet and Adjustable Floor Spikes
Recommended Uses For Product	For Surround Sound Systems, For Televisions, For Music Players
Subwoofer Diameter	5.25 Inches

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