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Features
Enclosure Compatibility
Note
Features
Dual Voice Coils:
For increased system flexibility, the woofer has two 4 ohm voice coils. When the
voice coils are wired in parallel, the woofer presents a 2 ohm load. When the
voice coils are wired in series, the woofer presents an 8 ohm load. In addition,
each coil may be connected to a different amplifier channel and each channel
will see a 4 ohm load.
Square Design:
By making the Solo-Baric square, Kicker is giving you the most possible cone
area (or Sd) for a given size baffle, 16% to 20% more area than a conventional
subwoofer. More cone area means the Solo-Baric L7 moves more air, resulting in
louder, deeper bass.
Cone Materials:
A titanium deposit impregnated cone is used resulting in greater rigidity for
less cone flex and less distortion. In addition, the cone is also very resistant
to environmental extremes.
Surround:
The tough, flexible santoprene rubber surround has a long-throw, positive-roll
design, which controls extreme cone excursion and is highly tear-resistant. The
surround is stitched to the reinforced cone edge, making separation between them
virtually impossible.
Inverted Structural Dome: The
Inverted Structural Dome replaces a conventional dustcap and locks into the cone
for unmatched structural integrity and greatly reduced cone flexing/resonance.
Cast Aluminum Frame:
The cast aluminum frame provides precision alignment and dependable motor
structure support.
Spider:
The durable resin-impregnated poly-cotton spider provides precise coil alignment
and critical cone motion control.
Voice Coil: The
multi-layer voice coil and Kapton former create a superior magnetic field and
effectively dissipate heat.
One-Piece Extended Pole: The
one-piece extended pole creates a broad, symmetrical magnetic field for
superior power handling, precise voice coil control, and very low deep bass
distortion. Venting in the pole piece eliminates noise and distortion caused by
huge amounts of airflow created by cone excursion.
UniPlate Construction:
The UniPlate construction combines the backplate and extended pole piece into a
single unit to maximize magnetic efficiency and minimize alignment problems
often caused by two-piece construction.
Black Plating:
The black plating on the UniPlate and top plate provides maximum heat
dissipation for cool operation and extended voice coil life.
Bumped Back Plate:
The deep bumped back plate lets the voice coil reach maximum excursion without
bottoming-out.
Perimeter Venting: The
perimeter venting cooling system continuously pumps hot air away from the voice
coil, replacing it with cool outside air.
Gaskets:
One piece front and rear gaskets insure an airtight seal.
Rubber Magnet Boot:
A black rubber boot covers the outside edge of the magnet structure to improve
the cosmetics of the woofer and protect the magnet during installation.
Speaker Terminals:
The terminals are spring loaded and nickel-plated for solid connections with
speaker wire up to 11 gauge.
Enclosure Compatibility:
This woofer can provide extended bass in sealed and vented enclosures (please
see the "Enclosure Compatibility" section for more information on the
recommended enclosures).
Enclosure
Compatibility
Power
Handling: When the
subwoofer is mounted in a sealed enclosure that has a volume from 0.66 cu/ft to
1.0 cu/ft, each coil can handle up to 300 watts RMS (600 watts peak). When the
woofer is mounted in a vented enclosure, its power handling varies depending
upon the size of the enclosure. In a 1.25 cu/ft vented enclosure, each coil can
handle up to 250 watts RMS (500 watts peak). In a 1.75 cu/ft vented enclosure,
each coil can handle up to 262.5 watts RMS (525 watts peak). In a 2.25 cu/ft
vented enclosure, each coil can handle up to 275 watts RMS (550 watts peak).
Recommended Sealed Box
Volume: When mounted in a sealed enclosure, the woofer delivers massive
amounts of high-impact bass and can be driven with punishing levels of amplifier
power.
- Compact (minimum enclosure
volume): 0.66 cu/ft; each
coil can handle up to 300 watts RMS (600 watts peak)
- SQ (maximum enclosure volume):
1.0 cu/ft; each coil can handle up to 300 watts RMS (600 watts peak)
Recommended Vented
Box Volume: The vented enclosures incorporate massive slot-loaded ports
with ultra-low air velocity and hard-hitting bass. These are not your
traditional port tubes; the slot-loaded ports are integrated into the enclosure
design.
- Compact:
1.25 cu/ft; 2.5"x11.25" port opening; 19.75" port depth; each
coil can handle up to 250 watts RMS (500 watts peak)
- Street Bass:
1.75 cu/ft; 2.75"x11.25" port opening; 17.75" port depth;
each coil can handle up to 262.5 watts RMS (525 watts peak)
- SPL/Deep Bass:
2.25 cu/ft; 3"x11.25" port opening; 18" port depth; each coil
can handle up to 275 watts RMS (550 watts peak)
Note:
The power handling specifications listed with the vented enclosure
recommendations apply only when a 25Hz, 24dB/octave subsonic filter (sold
separately) is used with this woofer; if a subsonic filter is not used, the
power rating will decrease and excessive port noise can occur.
Cutout:
The woofer will not mount in a standard enclosure with a round cutout. Instead,
the woofer must be mounted in an enclosure with a 9.403" x 9.403"
square opening.
Note
Manual Note:
The specifications printed in the manual are for the 2 ohm model. The 4 ohm
model specifications in the Crutchfield database were obtained directly from
Kicker.
