This setup was used on the weekends in a DJ/Karaoke Setup for approximately 2 years, the speakers sound as good as they did the day I bought them. These are professional series speakers, the sound quality is excellent. New price was just over $1200 per tower speaker and $1400 for the subwoofer. All speakers are self powered by built in Crown class-D amplifiers.

2 JBL PRX635 Tower Speakers: Specs are for each individual speaker.
http://www.jblpro.com/www/products/vintage/vintage-portable/prx600-series/prx635

• Maximum SPL 135 db peak
• 380 mm (15 in) Differential Drive® dual voice-coil and magnetic gap, neodymium woofer
• 165mm (6.5 in) horn loaded midrange transducer
• 25.4mm (1 in) polymer diaphragm compression driver
• 1500 Watt (3 x 500 watt) Class-D, Crown® digital amplifier
• DSP input section with dbx® Type IV™ limiter circuit, crossover, dynamic limiting, component optimization, selectable system EQ
• Professional XLR line and ¼" Mic/Instrument inputs, with loop through
• Obsidian DuraFlex™ coated plywood construction
• Large die-cast aluminum handle bar with a fine tuned ergonomic rubber grip for maximum comfort
• 8 M10 Suspension points and 1 pullback point
• Integrated 36mm pole mount socket

PRX618S-XLF Subwoofer:
http://www.jblpro.com/www/products/vintage/vintage-portable/prx600-series/prx618s-xlf

• Maximum SPL 133 db peak
• 460mm (18 in) Differential Drive® dual voice-coil and magnetic gap, neodymium woofer
• 1000 Watt (2 x 500 watt) Class-D, Crown® digital amplifier
• DSP input section with dbx® Type IV™ limiter circuit, crossover, dynamic limiting, component optimization, selectable system EQ
• Professional XLR line and ¼" Mic/Instrument inputs, with loop through
• Obsidian DuraFlex™ coated plywood construction
• Top panel M20 pole mount socket for sub/satellite configuration
• Large die-cast aluminum handle bar with a fine tuned ergonomic rubber grip for maximum comfort

$1800 Firm for all 3.