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SEALED ENCLOSURE APPLICATIONS
The L7 generates more sound pressure than an equivalently-sized round speaker and excels when used in the recommended sealed boxes. These sealed enclosure
designs give the smoothest response with increased energy at the lowest frequencies, 20Hz–30Hz. These designs deliver massive amounts of highly-accurate bass
and can be driven with punishing levels of amplifi er power. The high performance suspension system can operate in a larger sealed enclosure. This maximum enclosure
volume application is ideal for ultra sound quality installations. The maximum enclosure generates a very fl at response curve and superbly extends the sub-bass
response.
L7 woofers perform well in any size sealed enclosure between the minimum and maximum volume recommendations. These systems will exhibit benefi ts of both designs:
Minimum produces high-impact bass, and maximum generates low bass frequency protraction. Overall, the system will sound more like the recommended enclosure
design it is closest to in enclosure volume. These enclosure recommendations have been calculated with the airspace inside the enclosure and include the displacement
of the woofer. All sealed-enclosure airspace should be fi lled to 50% loose poly-fi l (polyester fi berfi ll) stuffi ng. Do not make the airspace greater than the maximum
enclosure volume recommendation.
Minimum Sealed
3
Model
Volume ft
(L)
8L7
.4 (11.33)
10L7
.8 (22.65)
12L7
1 (28.32)
15L7
1.75 (49.56)
Panel Dimensions for Minimum Sealed Enclosures using 3/4" (1.9cm) thick MDF
Model
Box Volume [ft³, L]
8L7
.4 (11.33)
10L7
.8 (22.65)
12L7
1 (28.32)
15L7
1.75 (49.56)
2015 L7 Subwoofers Manual Rev G.indd 6
2015 L7 Subwoofers Manual Rev G.indd 6
Maximum Sealed
Power Handling
Model
500W RMS
8L7
750W RMS
10L7
900W RMS
12L7
1200W RMS
15L7
Panel A [in, cm]
Panel B [in, cm]
11x11, 27.9x27.9
11x7.75, 27.9x19.69
13.5X13.5, 34.3X34.3
13.5x9.5, 34.3x24.13
13.5X13.5, 34.3X34.3
13.5x12, 34.3x30.5
16.5x16.5, 42x42
16.5x13.5, 42x34.3
3
Volume ft
(L)
Power Handling
.75 (21.24)
500W RMS
1.25 (35.4)
750W RMS
2 (56.64)
900W RMS
6 (169.9)
1200W RMS
Panel C [in, cm]
9.5x7.75, 24.13x19.69
12x9.5, 30.5x24.13
12x12, 30.5x30.5
15X13.5, 38.1X34.3
B
C
A
11/6/2014 9:25:57 AM
11/6/2014 9:25:57 AM
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