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L7 Technical Manual
Kicker Solo-Baric L7-Series Subwoofers
Recommended Applications / Version 2.0
September 6, 2002
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Features Mica Filled Polypropylene with a Titanium Deposit Coated Cone An Ultra High Performance look that makes the Solo-Baric® L7 truly a statement piece. The cone gives you deeper and stronger bass at higher listening levels with less distortion due to less tendency to flex. Because, when a woofer cone flexes, there is a loss of out- put. This loss of output translates into less bass. Re-engineered rear cone brace In order to keep up with the demands on the cone at extreme listening level
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FEATURES cont. Blackened One Piece Uniplate with Vented Hyper-Extended Pole 1. Provides enhanced heat transfer for cool operation and maximum power handling. The heat is transferred from the pole piece to the back plate, effectively acting like a radiator in an engine. This lowers the operating tem- perature of the voice coil. Note:The increase in temperature increases the impedance of the speak- er. This results in lower output and is referred to as Power Compression. 2. Reduces non-linear
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Kicker Solo-Baric L7-Series Subwoofers Recommended Applications Page 4 L7 Cutaway View NEW! Mica-Loaded Polypropylene with a Titanium Deposit coating Ultra High performance look with superior internal damping which means ultra-fast transient response and super-low distortion. New! Patent Pending One Piece front and rear Gasket Provides ISD (Inverted Structural Dome) Tough, flexible surround With greater durability and resistance to separation increases cone's resistance to long-throw, positi
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Thank you for your support of Kicker products, and especially our Solo-Baric® L7 (patent pending) square sub- woofers. The SL7s are truly unique products in a world of round subwoofers. Our technical and R&D staffs have designed some extreme enclosures beyond the small sealed boxes Solo-Barics are famous for. They have unleashed the awesome capabilities of the L7s. In this paper we will explore some applications for the Solo-Baric® L7 complete with box drawings and cut sheets plus some important
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Sealed Enclosure Applications The Kicker Solo-Baric® SL7 woofers are designed to give more output than an equivalent round speaker. The SL7 is amazing when used in the recommended sealed boxes. These sealed enclosure SQ recommendations will give the smoothest response with the most energy at really low frequencies, around 20 to 30 Hz. The recommended Compa act sealed boxes are in line with our traditional Solo-Baric enclosures. They have the highest power handling capability of all our recomm
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Characteristics of Sealed Enclosures The most basic and simple of all speaker enclosures is the sealed box or acoustic suspension design. The acoustic suspension design has several advantages; it is easy to build, easy to tune and offers high power handling, tight response and extended low end output. Acoustic suspension enclosures roll off at 12 dB per/octave. Cone motion is better controlled at all frequencies because of the constant pressure on the back side of the cone, which enables you to
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Sealed Box Response Curves S8L7 .33cu.ft./.75cu.ft. C S8L7 Compact Enclosure Response Curve S8L7 SQ Enclosure Response Curve dB Graph 1 > Acoustic On Axis Response: SPL, Phase 90 85 80 75 70 65 60 55 C 50 10 Frequency 50 100 Hz 500 1K S10L7 .66cu.ft./1.0cu.ft. C S10L7 Compact Enclosure Response Curve S10L7 SQ Enclosure Response Curve dB Graph 1 > Acoustic On Axis Response: SPL, Phase 90 85 80 75
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Sealed Box Response Curves S12L7 .88cu.ft./2.0cu.ft. C S12L7 Compact Enclosure Response Curve S12L7 SQ Enclosure Response Curve dB Graph 1 > Acoustic On Axis Response: SPL, Phase 95 90 85 80 75 70 65 60 C 55 10 Frequency 50 100 Hz 500 1K S15L7 1.5cu.ft./6.0cu.ft. C S15L7 Compact Enclosure Response Curve S15L7 SQ Enclosure Response Curve dB Graph 1 > Acoustic On Axis Response: SPL, Phase 95 90 85 8
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Ported/Vented Enclosure Applications Ported Solo-Barics incorporate massive slot loaded ports with ultra low air velocity for ground pounding street bass that will make your hair stand on end (if you have any left)! These are the enclosures of choice for outrageous street bass and high performance SPL contests. The following chart shows three recommended ported enclosures for each Solo-Baric driver. Compact has increased bass efficiency over a sealed enclosure, yet can still fit in tighter appli
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Characteristics of Vented Enclosures A vented enclosure is not much more complex than a sealed box. It consists, basically, of a box with a hole in it. However, despite its simple design, vented boxes are considerably harder to get good performance from than sealed boxes - although many times the extra effort can be worth it. The vent in the enclosure interacts with the volume of air in the cabinet and the driver to help increase out- put and reduce cone excursion at and around the tuning freque
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Vented Box Response Curves S8L7 .66cu.ft./.80cu.ft./1.0cu.ft. C S8L7 Compact Enclosure Response Curve S8L7 Street Bass Response Curve S8L7 SPL/Deep Bass Enclosure Response Curve dB Graph 1 > Acoustic On Axis Response: SPL, Phase 90 85 80 75 70 65 60 55 C 50 10 Frequency Hz 20 30 40 50 60 70 80 100 S10L7 1.25cu.ft./1.75cu.ft./2.25cu.ft. C S10L7 Compact Enclosure Response Curve S10L7 Street Bass Response Curve S10L7 SPL/Deep Bass E
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Vented Box Response Curves S12L7 1.75cu.ft./2.5cu.ft./3.25cu.ft. C S12L7 Compact Enclosure Response Curve S12L7 Street Bass Response Curve S12L7 SPL/Deep Bass Enclosure Response Curve dB Graph 1 > Acoustic On Axis Response: SPL, Phase 95 90 85 80 75 70 65 60 C 55 10 Frequency Hz 20 30 40 50 60 70 80 100 S15L7 3.0cu.ft./4.5cu.ft./6.0cu.ft. C S15L7 Compact Enclosure Response Curve S15L7 Street Bass Response Curve S15L7 SPL/Deep Bas
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Box Building & Mounting Hints All the cubic feet numbers given in the supplied charts include the displacement of the woofer. For the port- ed boxes the displacement of the port must be added to the final design. It will be impractical to use round ports for these designs. The rectangular port information given will yield the best results. Always use 3/4” or thicker MDF and make sure all the joints are secure and well sealed. The peak pressure in a ported box can exceed that of a sealed enclosur
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Box Building & Mounting Hints If you would like to use a vented enclosure, but the box designs we provide you with (in this manual) do not fit because of width or depth, the designs can be modified. The shape of the enclosure is not vital, but The Volume Is. . The volume, of the design you choose, must stay the same. The following diagrams provide you with some help to insure your enclosure is built correctly. Front 45° Wedge Round Over Inner Corner Top Remember: If you are going
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Box Building & Mounting Hints Here are a couple more examples of the different shape enclosures you can build. The woofer can be mount- ed on the same side as the port or the back side of the enclosure can be slanted to fit up against your back seat.. On the cut sheets we provide, change the dimensions to accommodate the woofer and the vent on the same side. Make sure the internal volume does not change! Top Side OR Top Side Kicker Solo-Baric L7-Series Subwoofers Recommended Applications Page
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Wiring Options The following diagrams are the most popular wiring configurations when using Dual voice coil woofers. They show a typical single channel wiring scheme. Check the amplifier’s owners manual for minimum impedance the amplifier will handle before hooking up the speakers. Remember: 4 Ohm mono is equivalent to 2 Ohm stereo. Single Woofer Using Dual 2 Ohm Voice Coils 1 Ohm 4 Ohm Parallel Series Red/white dot Red/white dot + + - To -
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Wiring Options cont. SERIES VOICE COILS / WOOFERS WIRED IN PARALLEL Using Dual 2 Ohm Voice Coils 4 4 4 = 1.33 OHM Red/white dot Red/white dot Red/white dot + + + - To + Amplifier Black/ Black/ Black/ white white white dot dot dot Black - Black Black - - - - - Red + Red + Red + Using Dual 4 Ohm Voice Coils 8 8 8 = 2.66 OHM Red/white dot Red/white dot Red/white dot + + + - To + Ampl
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.66 cf, Fb=48Hz .16 cf = Port Vol. POWER HANDLING: S8L7-BOX-VENTED-066 300W with 25Hz Subsonic Filter set at 24db/Octave. Side View Without subsonic filter 250W E B F D 22 19-1/4 1-1/2 11 Front View Cut List: 3/4" MDF (2) 11" x 9 5/8" Top & Bottom(A) (2) 20 1/2" x 9 5/8" Sides(B) (2) 20-1/2" x 9 1/2" Front & Back(C) C (1) 18 1/2" x 9 1/2" Port(D) (1) 1 1/2" x 9 1/2" Corner Fillet(E) (4) 2" x 2" Gusset(F) R 27/32 .84 A R3/8 7-19/32 9-5/8 1-1/2 3/4 3/4 1-
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.80 cf, Fb=45Hz .19 cf = Port Vol. POWER HANDLING: S8L7-BOX-VENTED-080 325W with 25Hz Subsonic Filter set at 24db/Octave. Side View Without subsonic filter 250W E B F D 23-1/2 19-3/4 1-3/4 11 Front View Cut List: 3/4" MDF (2) 11" x 10 5/8" Top & Bottom(A) (2) 22" x 10 5/8" Sides(B) (2) 22" x 9 1/2" Front & Back(C) C (1) 19" x 9 1/2" Port(D) (1) 1 1/2" x 9 1/2" Corner Fillet(E) (4) 2" x 2" Gusset(F) R 27/32 .84 A R3/8 7-19/32 10-5/8 1-3/4 3/4 3/4 1-11/16
