Alesis Active M1 520 Monitors :- discontinued .

If you want a refrence monitor perfect for quality, home mixing with superb clarity and flat response then the Alesis M1 Active 520 will suit you. The M1 Active 520 is the third generation of the acclaimed Alesis M1 Active Series. They offer incredible bass and midrange definition and flat frequency response from its high-precision driver and professionally crafted crossover.

The Alesis M1 Active 520 Features:

• 5"  low frequency woofer for clear bass and midrange
• 3/4" silk dome tweeter for smooth, detailed highs without harshness
• Bi-amplified design/tweeter – 25W woofer – 50W for ultra accurate frequency separation
• High-precision drivers offer lower distortion and smoother frequency response
• Acoustical waveguide for superior imaging with minimal diffraction
• 1" thick front baffle virtually eliminates speaker resonance
• Magnetically shielded for close placement to video monitors in computer-based music production studios
• XLR and 1/4" TRS input connectors with volume control
• Low frequency density switch for acoustic space adjustment of the monitors
• Rear port design provides deep bass extension and increased SPL
• Hi, mid and low frequency EQ switches to accommodate user preference and sub-woofers
• Top mounted, integrated power switch/clip light bar
• Dimensions: (W x H x D). 6.5” x 10.5” x 7.75” / 16.5 cm x 26.7 cm x 19.7 cm

On the back of the M1 Active 520 monitors, Alesis have supplied XLR inputs for balanced or un-balanced inputs so you can get the most from your sound. The Active 520s are taken a step futher with a bi-amplified speaker system. This amount of sound control and quality means you will get stunning clarity and quality.