Diamond DMD Series subwoofers may be the starting point in Diamond Audio’s product line but it is definitely far from entry-level.  Diamond DMD series subwoofer models are all dual voice coil and motor parts feature an all black chemically treated coating for upgraded performance.  A heavy gauge black powder coated vented stamped cross flow steel frame provides excellent thermal dissipation.  A fully covered wrap-around gasket provides protection from any air leaks and gives the subwoofer a nice tight seal and finished look. Whatever your application, Diamond DMD series subwoofers will deliver the high performance that you have come to expect from Diamond Audio at a very attainable price.  

SPECIAL NOTE:   LIKE ALL DUAL VOICE COIL SUBWOOFERS A DUAL 2 OHM SUBWOOFER IS ACTUALLY A 1 OHM...OR 4 OHM SUBWOOFER -
IT WILL NEVER BE JUST 2 OHMS!!   
AND A DUAL 4 OHM SUBWOOFER IS ACTUALLY A 2 OHM...OR 8 OHM SUBWOOFER -
IT WILL NEVER BE JUST 4 OHMS!!

BE CAREFUL WHEN DESIGNING YOUR AUDIO SYSTEM AND YOUR SELECTION OF AMPLIFIER/SUBWOOFER COMBINATION(S).   LOWER IMPEDANCE IS NOT A GOOD THING.  DAMPENING FACTOR OF THE AMPLIFIER SUFFERS (HOW IT CONTROLS THE SUBWOOFER) AND THE HEAT OF ANY AMPLIFIER DOUBLES WITH EVERY HALVING OF IMPEDANCE.  NOT A GOOD THING!!!  REMEMBER THAT HEAT IS YOUR ENEMY.