MartinLogan Speaker user manual Martinlogan Exclusives

MARTINLOGAN EXCLUSIVES

BalancedForce™ For Cleaner Bass

Resulting from an equal and opposite reaction to the cone's movement, strong bass causes all traditional subwoofer enclosures to generate acoustic vibrations. You feel this by touching the cabinet. Although the "physics" of this phe- nomenon actually cause a subwoofer cabinet to resonate or even dance, most subwoofer designers apply weight or mass to the cabinet to minimize such disturbances, but still leave one by product—"smeared bass". Vibrations translated from the woofer to the cabinet actually dampen the bass signal causing a loose and "fuzzy" sound.

The Descent i integrates BalancedForce bass configura- tion to nullify cabinet vibrations. Originally engineered for the cost-no-object, state-of-the-art Statement™ E2 system, BalancedForce uses two or more drivers mounted at oppos- ing angles. The Descent i's 3 drivers, spaced 120 degrees apart, operate in exact opposition, resulting in maximum cancellation delivering the ideal—pure bass energy with a reduction in cabinet contributions to the room as high as 25dB over traditional subwoofer resonance solutions!

TriLinear™ Configuration

The use of three small, identical drivers maintains the low distortion levels and optimal control of an efficient and rigid small driver while moving the same amount of air as a driver three times larger. This allows powerful bass in a small package, free from the performance limitations of a heavy and hard to control single large driver.

Servo-Controlled Dynamic Drivers

All dynamic drivers generate distortion caused by spider and surround nonlinearities as well as voice coil inductive disturbances and variant motor strength during massive woofer excursions. These challenges plague all subwoofer designers. The result? Induced harmonic and intermodulated distortions causing dramatic disturbances at high excursions. This occurs significantly in almost all non-servo-controlled subwoofers.

MartinLogan’s advanced servo system uses a sophisticated monitoring and control circuit to detect and instantaneous- ly correct any deviation between acoustical output and electrical input. The result? A reduction in distortion for the purest possible low-frequency reproduction.

Proprietary Switching Amplifier

The Descent i incorporates three identical proprietary switching amplifiers.The use of three amplifiers allows for an incredible amount of woofer control resulting in tighter, better defined bass while keeping distortion at the lowest possible levels.

25Hz & 50Hz Level Control

The Descent i 25Hz & 50Hz Level controls allows custom sound tailoring capabilities found in few subwoofers. A room, especially when small, can greatly exaggerate bass in the 20–60Hz range. The Descent i’s 25Hz & 50Hz Level control knobs increase or decrease lower bass to compensate for these room anomalies and allow increased deep bass if you desire a subsonic sense of energy at the lowest frequencies.

20 MartinLogan Exclusives