MartinLogan | ML Bass Technologies Briefs
MartinLogan Bass Technologies
PoweredForce™ Bass
MartinLogan PoweredForce woofers feature advanced driver and amplification technologies that deliver astonishingly dynamic and articulate bass to as low as 24 Hz from enclosures only about the size of a case of wine. Integrated low-frequency equalization further enhances performance by allowing precise tailoring to individual room acoustics.
BalancedForce™ Woofer Alignment
3 woofers in a BalancedForce configuration
Conventional subwoofer enclosures vibrate in reaction to driver activity, creating a secondary and highly colored sound source. In extreme cases, the cabinet may even "dance" on the floor. The typical expedient of adding mass can make the problem less obvious, but it doesn't really make it go away. Resonant bass smear is inevitable unless cabinet vibration is drastically attenuated. MartinLogan's BalancedForce design places multiple drivers in exact opposition to one another, so that their forces on the cabinet almost perfectly cancel, reducing spurious cabinet radiation by as much as 25 dB.
TriLinear™ Woofer Alignment
By operating three drivers in parallel, Descent and Depth benefit from the low distortion and optimal control of single drive units while achieving the displacement and acoustical output of a drive unit three times larger.
Servo Monitoring and Control
All dynamic drivers have nonlinearities in their suspension and motor systems, which increase dramatically at large diaphragm excursions. The resulting distortion can rise to 20 percent or more with typical woofers and subwoofers reproducing strong deep-bass signals. MartinLogan's advanced servo system uses a sophisticated monitoring and control circuit to detect and instantaneously correct any deviation between acoustical output and electrical input. The result is a three- to ten-fold reduction in distortion for the purest possible low-frequency reproduction.
