Monoprice Monolith THX Subwoofers: 15" 1000W $1000, 12" 500W $650, 10" 500W $420

[chris]

• Monoprice Monolith 10" THX Select Certified 500W Subwoofer Amplifier $419.99
• Monoprice Monolith 12" THX Ultra Certified 500W Subwoofer Amplifier $649.99
• Monoprice Monolith 15" THX Ultra Certified 1000W Subwoofer Amplifier $999.99