Crutchfield offers the Polk Audio Blackstone 5.0-Channel Compact Home Theater Speaker System in Black for $269.99 with free shipping. That's the lowest price we could find by $109. Features: 125Hz to 24kHz total frequency response Center channel speaker, 4 satellite speakers 3-1/4" bilaminate composite cone woofers, 3/4" silk polymer dome tweeters Steel plate reinforced cabinets