JBL offers its refurbished JBL Arena Sub 100P Speaker in Black for $89.99 with free shipping. That's $10 under our December mention of a new one, $510 off list, and the best deal we've seen in any condition. Features include: 41Hz to 150Hz frequency response 10" polycellulose woofer 100-watt RMS digital power amplifier variable level, crossover, and phase controls A 1-year JBL warranty applies.