MartinLogan Depth i [20/28] Xclusives
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MartinLogan Depth i [20/28] Xclusives

MartinLogan Depth i [20/28] Xclusives
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 Depth i integrates BalancedForce bass configuration
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 Depth 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 Depth i incorporates a proprietary switching ampli-
fier that allows for an incredible amount of woofer control
resulting in tighter, better defined bass and while keeping
distortion at the lowest possible levels.
25Hz Level Control
The Depth i 25Hz 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 Depth i’s 25Hz Level control knob
increases or decreases lower bass to compensate for these
room anomalies and allows increased deep bass if you
desire a subsonic sense of energy at the lowest frequencies.
20 MartinLogan Exclusives
martInlogan exClusIves
BalancedForce™ For Cleaner Bass

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