Excellent condition Martin Logan Depth subwoofer. Could be rated as a 10/10 other than age. Finish is black/aluminum. Description from the Martin Logan website...
Utilizing all of the innovative technology from the Descent subwoofer in a cabinet 30% smaller, Depth blends quickly and easily into any audio system—from reference two-chan- nel to multi-channel home theaters. Its 25Hz control tames standing waves that cause weak or booming bass, and advanced servo moni- toring and control continuously analyzes driver performance and corrects any deviation from the original signal, resulting in pure, powerful bass—everywhere.
Depth’s innovative TriLinearTM, BalancedForceTM driver configuration uses three identical drivers to maintain the magnificent control of an advanced small driver while moving the same amount of air as a driver three-times larger, and at the same time eliminate spurious cabi- net vibrations found in traditional subwoofers. Custom MartinLogan ETCTM spikes couple the Depth directly to your floor to eliminate lost energy and deliver a tight, detailed, sub-bass performance.
Available with either clear or black-brushed aluminum trim, the Depth is as striking in appear- ance as it is in performance—whether placed in a corner, under an end table or behind your favorite chair.