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Standard Bandpass
why do Subwoofers in cars sound diffrent to subwoofers in your house and stuff, is the BASS more pure/strong.?
and why does having a bandpass sound louder and better than have a subwoofer standing on its own, cause i put the subwoofer in a cupboard with the door slightly open and it sound like thunder much better than standard and make the windows a stuff in my house rattle,its only 20watt 4.5" subwoofer ,and to me it sounds like at least 1200watt 15" please reply thanks!!!......
Low frequency noise (subwoofer sounds) are felt as much as heard. Putting your subwoofer in a cabinet attached to the wall makes the wall part of the speaker system by vibrating at the same frequency as your subwoofer.
The same holds true in cars. The body panels become external speakers.
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Blue Wave series Dual 10 600-Watt Bandpass System $68.94 Blue Wave series Dual 10" 600-Watt Bandpass System |
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Blue Wave Series Dual 12 800-Watt Bandpass System $95.94 Blue Wave Series Dual 12" 800-Watt Bandpass System PYLE DUAL 12" 800W |
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Dual 12in Bandpass Boxilluminite $249.99 RMS power 600 wattsMaximum power 1100 wattsSensitivity 89dB Frequency Response 25-200Hz Frequency response 25Hz-200Hz Impedance 4-ohmsFeatures illumiNITE blue illumination with mirrored dual-chambered designCarpeted enclosurePlexiglass viewing windo |
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Pyle - 10'' 500 Watt Bandpass Enclosure System $64.97 One 10'' High Power 4 Ohm Subwoofer Blue Polypropylene Cone Specially Treated Black Rubber Edge Suspension 2'' Aluminum Voice Coil Bandpass Alignment For Extra Deep Bass Plexiglass Front Window 500 Watts Max Power Handling Frequency Response: 30Hz-700k Hz Dimensions: 12''H x 12''W x 17''D Series: Blue Wave Type: Enclosed Subwoofers RMS Power: 250 |
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Pyle - 8'' 400 Watt Bandpass Enclosure System $55.02 One 8'' High Power 4 Ohm Subwoofer Blue Polypropylene Cone Specially Treated Black Rubber Edge Suspension 2'' Aluminum Voice Coil Bandpass Alignment For Extra Deep Bass Plexiglass Front Window 400 Watts Max Power Handling Frequency Response: 35Hz-800k Hz Dimensions: 10''H x 10''W x 17''D Series: Blue Wave Type: Enclosed Subwoofers RMS Power: 200 |
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Microwave Bandpass Filters for Wideband Communications (Hardcover) $189.7 This book will appeal to scientists and engineers who are concerned with the design of microwave wideband devices and systems. For advanced (ultra)-wideband wireless systems, the necessity and design methodology of wideband filters will be discussed with reference to the inherent limitation in fractional bandwidth of classical bandpass filters. Besides the detailed working principles, a large number of design examples are demonstrated, which can be easily followed and modified by the readers to achieve their own desired specifications. Therefore, this book is of interest not only to students and researchers from academia, but also to design engineers in industry. With the help of complete design procedures and tabulated design parameters, even those with little filter design experience, will find this book to be a useful design guideline and reference, which can free them from tedious computer-aided full-wave electromagnetic simulations. Among different design proposals, wideband bandpass filters based on the multi-mode resonator have demonstrated many unparalleled attractive features, including a simple design methodology, compact size, low loss and good linearity in the wide passband, enhanced out-of-band rejection, and easy integration with other circuits/antennas. A conventional bandpass filter works under single dominant resonant modes of a few cascaded transmission line resonators and its operating bandwidth is widened via enhanced coupling between the adjacent resonators. However, this traditional approach needs an extremely high coupling degree of coupled-lines while producing a narrow upper stopband between the dominant and harmonic bands. As a sequence, the desired dominant passband is restricted to an extent less than 60% in fractional bandwidth. To circumvent these issues and break with the tradition, a filter based on the multiple resonant modes was initially introduced in 2000 by the first author of this book. Based on this nov |
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Bnps102 Dual Bandpass System With Neon Accent Lighting (10; 1000-watt) $97.94 Bnps102 Dual Bandpass System With Neon Accent Lighting (10"; 1000-watt) 10" 1000W 13"H x 28.5"W x 14"D Built-in neon accent lighting 2 high-power 4 ohm subwoofers Silver polypropylene cone Specially treated black rubber edge suspension 2" high-temperature aluminum voice coil Bandpass alignment for extra deep bass Plexiglass front window 4 tuned ports Freq resp: 35 Hz - 1 kHz |
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PLSQ112 12 Inch Single Bandpass System w/Neon Woofer Silhouette $82.99 One 12” High Power 4 Ohm Square Subwoofer, Silver/Red P.P. Cone/New Pattern, MDF Construction, Leather-Like Exterior, Specially Treated Black Rubber Edge, Bandpass Alignment for Extra Deep Bass, 2.5” Kapton Voice Coil, Red Neon Light, Plexi Glass Window |
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PLBWS212 Dual 12 Inch Bandpass System w/Neon Silhouette $109.99 Two 12" High Power 4 Ohm Subwoofers, Blue Neon Silhouette Woofer Rings, Silver Polypropylene Cones, Specially Treated Rubber Egde Suspension, 2 ”Aluminum Voice Coil, Bandpass Alignment for Extra Deep Bass |
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Microwave Bandpass Filters for Wideband Communications $107.25 No Synopsis Available |
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Bnps122 Dual Bandpass System With Neon Accent Lighting (12''; 1200-watt) $111.94 12" 1200W 15.5"H x 31.5"W x 16"D Built-in neon accent lighting 2 high-power 4 ohm subwoofers Silver polypropylene cone Specially treated black rubber edge suspension 2" high-temperature aluminum voice coil Bandpass alignment for extra deep bass Plexiglass front window 4 tuned ports Freq resp: 35 Hz - 1 KHz |
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Subdecay Prometheus Resonant Filter Demo
Subwoofer enclosure modifications?
Ok, im trying to make my box sound better. I've seen those boxes for 12" subs with a gap cut in the middle or the top that supposivly make them sound better. Is there a way to modify a standard box and make it into a bandpass box. OR could you just add a few ports to make it better... Thanks
If you have a sealed box now then it would most likely not sound good to turn it into a ported box,because it would be to small in cubic inches.
If you want to go ported then you will need to have one built for your subs to the correct specifications.
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