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Subwoofers

A subwoofer is a loudspeaker which reproduces bass frequencies from about 5 Hz to about 90 Hz. Frequencies 16 Hz or lower are more felt than heard. more...

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So-called subwoofers which reproduce frequencies from about 35 Hz to about 150 Hz are more properly described as bass modules than true subwoofers. It is difficult for small loudspeakers to reproduce frequencies below 40 Hz, especially above 100 dB, and so it is often advantageous to use a loudspeaker dedicated to this task.

Overview

Subwoofers use drivers (woofer) with cones typically coming in 10" or 12" sizes, but can be as large as 34", and as small as 4". Diameter tends to be advantageous because low frequencies involve shifting a great deal of air; a recent trend has been for high excursion, i.e., how far the cone can linearly travel from its resting position; for example, some can move much as 2.5" in or out, yielding an overall displacement of 5" (this is controlled movement range).

Subwoofers are usually powered by a high power amplifier, and often an electronic crossover ensures that higher frequencies will not be directed to the subwoofer.

The need to reproduce these frequencies has increased since older formats, such as vinyl records, have been displaced by digital formats, such as CD, and particularly 5.1 formats such as Dolby Digital, in which the ".1" channel is dedicated solely to the subwoofer. The .1 channel is usually dedicated to extended bass frequencies, for example, the low frequencies of a gunshot, string bass, or thunder. This track is often used aggressively by mixing artists.

Applications

Professional audio

Subwoofers are found in professional applications such as live concerts, movie theatres, various other sound reinforcement applications (ranging from nightclubs to theme restaurants) and studios. Some of these applications require subwoofers designed for very high sound levels, such as the JBL 4645 – certified for THX movie theatres – which uses an 18" driver (woofer). Note that movie theatre speakers (situated behind a perforated screen) typically use 15" drivers (woofers), so the use here is only to reproduce the lowest frequencies at high sound pressure levels.

Large concert sound systems always use subwoofers (referred to as "subs" by the engineers and crew). The bulk of the sound system is usually "flown" (suspended from the ceiling by chain hoists) and the subs are usually stacked on the stage or the ground in front of the stage to the left and right of the performance space.

An unusual example of the use of sub-woofers came with the release of Earthquake in 1974 where they used a system called Sensurround to create a feeling of an earthquake. This was simply a set of large sub-woofers designed to create infra-bass (felt but not heard). Similar systems are used in theme park rides, such as "Days of Thunder," which uses sound to simulate a physical impact.

Read more at Wikipedia.org


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5Core 8" Subwoofer Speaker 1000W Combined 4Ω ReplacementCar Bass Sub Woofer Pair5Core 8" Subwoofer Speaker 1000W Combined 4Ω ReplacementCar Bass Sub Woofer Pair $24.25 Lase Pro-18 Bass / Sub-Woofer 18" Cast Frame Professional Speaker 1300 Watts 8ΩLase Pro-18 Bass / Sub-Woofer 18" Cast Frame Professional Speaker 1300 Watts 8Ω $189.99
Planet Audio Pl10S 10” 800 W Car Subwoofer - 4 Ohm Single Voice CoilPlanet Audio Pl10S 10” 800 W Car Subwoofer - 4 Ohm Single Voice Coil $38.99 10" 400W Slim Under-Seat Subwoofer Powered Car Sub with Amp Speaker System kit10" 400W Slim Under-Seat Subwoofer Powered Car Sub with Amp Speaker System kit $75.99
Polk Db1042Svc 10" Single 4-Ohm Voice Coil Subwoofer with Marine CertificationPolk Db1042Svc 10" Single 4-Ohm Voice Coil Subwoofer with Marine Certification $64.00 Herdio 8" Outdoor Rock Bluetooth Speakers Waterproof 600 Watt Pool Patio GardenHerdio 8" Outdoor Rock Bluetooth Speakers Waterproof 600 Watt Pool Patio Garden $179.00
3- Mtx Audio 10" Subwoofers 200 Rms Each Older Thunderform Replacement3- Mtx Audio 10" Subwoofers 200 Rms Each Older Thunderform Replacement $90.00 Slim Under Seat Car Subwoofer Bass Amplifier Speaker Enclosure Active 8" 600WSlim Under Seat Car Subwoofer Bass Amplifier Speaker Enclosure Active 8" 600W $37.38
Rockville Rvp12W4 600 Watt 12" Raw Replacement Dj Pa Subwoofer 4 Ohm Sub WooferRockville Rvp12W4 600 Watt 12" Raw Replacement Dj Pa Subwoofer 4 Ohm Sub Woofer $44.95 Boss Audio Systems Bass10 10” 1000 W Powered Under Seat Car SubwooferBoss Audio Systems Bass10 10” 1000 W Powered Under Seat Car Subwoofer $109.99
Ds18 Pro-X10Mbass Loudspeaker 10" Midbass Red Steel Basket 800W Max 8 OhmsDs18 Pro-X10Mbass Loudspeaker 10" Midbass Red Steel Basket 800W Max 8 Ohms $76.95 18 Sound 12"-12Nmb1000 -600W Rms @ 8Ω High Output Mid-Bass Woofer Speaker .18 Sound 12"-12Nmb1000 -600W Rms @ 8Ω High Output Mid-Bass Woofer Speaker . $365.00
8" Woofer Speaker Bass Driver Home Stereo Audio 8 ohm subwoofer Free Shipping8" Woofer Speaker Bass Driver Home Stereo Audio 8 ohm subwoofer Free Shipping $29.00 Boss Audio Systems Bab8 8” 800 W Powered Car Subwoofer – Single 4 Ohm Voice CoilBoss Audio Systems Bab8 8” 800 W Powered Car Subwoofer – Single 4 Ohm Voice Coil $99.99
Lase 18 Sound 12Mb1000 -600W Rms at 8Ω High Output Mid-Bass Woofer SpeakerLase 18 Sound 12Mb1000 -600W Rms at 8Ω High Output Mid-Bass Woofer Speaker $325.00 Pair of Gravity 12 Inch 4000 Watt Car Subwoofer w/ 2 Ohm Dvc Power (2 Sub )Pair of Gravity 12 Inch 4000 Watt Car Subwoofer w/ 2 Ohm Dvc Power (2 Sub ) $199.99
Ds18 2X 8" Car Subwoofer + Amplifier Monoblock + Ampkit Installation Wiring KitDs18 2X 8" Car Subwoofer + Amplifier Monoblock + Ampkit Installation Wiring Kit $379.95 Bose Tv Speaker Home Theater Soundbar, Certified RefurbishedBose Tv Speaker Home Theater Soundbar, Certified Refurbished $159.00
New Listing8"600W Low-Profile Amplified Subwoofer System Under-Seat Car Subwoofer SpeakersNew Listing8"600W Low-Profile Amplified Subwoofer System Under-Seat Car Subwoofer Speakers $37.66 Rockville Titan Slim D8 Black Powered Dual 8" Pro Dj Pa Subwoofer Deep Bass SubRockville Titan Slim D8 Black Powered Dual 8" Pro Dj Pa Subwoofer Deep Bass Sub $279.95
600W 8" Under Seat Powered Subwoofer Active Hideaway Car/Truck Sub W/ Amp Kit Us600W 8" Under Seat Powered Subwoofer Active Hideaway Car/Truck Sub W/ Amp Kit Us $35.91 Black Diamond Dia-10S 10" Car Subwoofer 4 Ohm Single Voice Coil 440 Watts MaxBlack Diamond Dia-10S 10" Car Subwoofer 4 Ohm Single Voice Coil 440 Watts Max $58.95
Focal Isub Twin Subwoofer Pair Underseat Passive Subwoofer 2 X 200 WattFocal Isub Twin Subwoofer Pair Underseat Passive Subwoofer 2 X 200 Watt $399.00 Dual 10" Portable Bluetooth Party Speaker Subwoofer Heavy Bass Sound System+MicDual 10" Portable Bluetooth Party Speaker Subwoofer Heavy Bass Sound System+Mic $91.99
Powered 12 Inch Pro Audio/Dj Subwoofer Cabinet with Class D Amp 800 WattsPowered 12 Inch Pro Audio/Dj Subwoofer Cabinet with Class D Amp 800 Watts $284.99 Ds18 Pro-X10M 10" Midrange Loudspeaker 600 Watts 8 OhmDs18 Pro-X10M 10" Midrange Loudspeaker 600 Watts 8 Ohm $67.95
Custom Pontiac Firebird 93-02 Car Stereo Single 10 Subwoofer Speaker Sub BoxCustom Pontiac Firebird 93-02 Car Stereo Single 10 Subwoofer Speaker Sub Box $99.95 New Memphis Audio Nano110P Compact Powered Subwoofer w/ 10" Sub & 180W AmplifierNew Memphis Audio Nano110P Compact Powered Subwoofer w/ 10" Sub & 180W Amplifier $329.00
New Rockville Rbg10S Bass Gig 10" 1200 Watt Active Powered Pa Subwoofer Dj/ProNew Rockville Rbg10S Bass Gig 10" 1200 Watt Active Powered Pa Subwoofer Dj/Pro $194.95 Jbl BassPro Go v2 Powered subwoofer 100-watt Rms amplifier built-in bluetoothJbl BassPro Go v2 Powered subwoofer 100-watt Rms amplifier built-in bluetooth $371.99
New (2) 12" Subwoofers Replacement Speakers 4 ohm twelve inch Woofer pair AudioNew (2) 12" Subwoofers Replacement Speakers 4 ohm twelve inch Woofer pair Audio $75.00 Bestisan 6.5’’ Powered Home Audio Subwoofer with Deep Bass in Black Sw65DBestisan 6.5’’ Powered Home Audio Subwoofer with Deep Bass in Black Sw65D $56.99
Proreck Club 6000 Pa Speaker System 15 inch Line Array Bluetooth Subwoofer 6000WProreck Club 6000 Pa Speaker System 15 inch Line Array Bluetooth Subwoofer 6000W $709.99 2) Pyle Plpw10D 10" 2000W Car Subwoofer Audio Subs Dvc 4 Ohm + Ported Vented Box2) Pyle Plpw10D 10" 2000W Car Subwoofer Audio Subs Dvc 4 Ohm + Ported Vented Box $147.99
600W Slim Under-Seat Subwoofer Powered Car Truck Sub w/ Amp Kit Speaker 10 "600W Slim Under-Seat Subwoofer Powered Car Truck Sub w/ Amp Kit Speaker 10 " $68.00 Rockville Vs12K54 12" K5 1400w Car Subwoofer in Vented Sub Enclosure Box - 4 OhmRockville Vs12K54 12" K5 1400w Car Subwoofer in Vented Sub Enclosure Box - 4 Ohm $99.95
New 12" Subwoofer Replacement Speaker 4ohm twelve inch woofer Car & Home AudioNew 12" Subwoofer Replacement Speaker 4ohm twelve inch woofer Car & Home Audio $45.00 Jbl BassPro Go Powered subwoofer (100-watt Rms amplifier) and built-in bluetoothJbl BassPro Go Powered subwoofer (100-watt Rms amplifier) and built-in bluetooth $349.00
New Hertz Dba201F 8" 440W Under-Seat Subwoofer Bass Speaker Amplifier EnclosureNew Hertz Dba201F 8" 440W Under-Seat Subwoofer Bass Speaker Amplifier Enclosure $349.00 5Core 6.5 Inch Subwoofer speaker 300Watt Car audio 4Ohm Replacement Sub Woofer5Core 6.5 Inch Subwoofer speaker 300Watt Car audio 4Ohm Replacement Sub Woofer $15.98
Ds18 Zr6.2D 6.5" Car Audio Subwoofer 600W Max 300W Rms 2+2 Ohms - 1 SpeakerDs18 Zr6.2D 6.5" Car Audio Subwoofer 600W Max 300W Rms 2+2 Ohms - 1 Speaker $71.95 Lanzar 6.5” Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Aluminum VoiceLanzar 6.5” Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Aluminum Voice $45.99
8" 800W Slim Under Seat Car Subwoofer Auto/Truck Sub Amp Kit Hi-fi Deep Bass8" 800W Slim Under Seat Car Subwoofer Auto/Truck Sub Amp Kit Hi-fi Deep Bass $65.54 Lase Neo18-6000-8 ‎Neodymium 18" Low Frequency Bass Woofer Speaker 6" Vc 8ΩLase Neo18-6000-8 ‎Neodymium 18" Low Frequency Bass Woofer Speaker 6" Vc 8Ω $499.00
Gravity G12Bd 12" Active Powered Car Subwoofer+Sub Enclosure Bandpass SubwooferGravity G12Bd 12" Active Powered Car Subwoofer+Sub Enclosure Bandpass Subwoofer $149.99 Ds18 Pro-X694Bm – 6.9” Speaker Mid-Range with Bullet 200Watts Rms 400 Watts MaxDs18 Pro-X694Bm – 6.9” Speaker Mid-Range with Bullet 200Watts Rms 400 Watts Max $83.95
Rockville Rock Shaker 15" Inch Black 1000w Powered Home Theater Subwoofer SubRockville Rock Shaker 15" Inch Black 1000w Powered Home Theater Subwoofer Sub $239.95 Sound Storm Laboratories Us10K 10” 1000 W Powered Car Subwoofer - Dual 4 OhmSound Storm Laboratories Us10K 10” 1000 W Powered Car Subwoofer - Dual 4 Ohm $119.99
10" 600W Slim Under-Seat Subwoofer Powered Car Truck Sub w/ Amp Kit Speaker Ke10" 600W Slim Under-Seat Subwoofer Powered Car Truck Sub w/ Amp Kit Speaker Ke $67.78 Kicker Hideaway 10" Compact Powered Subwoofer *51Hs10Kicker Hideaway 10" Compact Powered Subwoofer *51Hs10 $267.60
9000W Bluetooth Speaker Dual 10" Subwoofer Heavy Bass Sound System Party & Mic9000W Bluetooth Speaker Dual 10" Subwoofer Heavy Bass Sound System Party & Mic $179.99 6.5 inch Home Car Audio Woofer Sound Studio Subwoofer 8 ohm Replacement Speaker6.5 inch Home Car Audio Woofer Sound Studio Subwoofer 8 ohm Replacement Speaker $29.49
New ListingJamo Sub 210 - 8" 200W Active Subwoofer Home Cinema Bass Speaker TestedNew ListingJamo Sub 210 - 8" 200W Active Subwoofer Home Cinema Bass Speaker Tested $129.00 Mtx 5510-22 Dual Voice Coil Subwoofer 55 Series 400W-Rms 800W-Max 2-Ohm 10"Mtx 5510-22 Dual Voice Coil Subwoofer 55 Series 400W-Rms 800W-Max 2-Ohm 10" $169.95
Rockville Rw10Ca 10" 800 Watt Under-Seat Slim Amplified Car Subwoofer +Wire KitRockville Rw10Ca 10" 800 Watt Under-Seat Slim Amplified Car Subwoofer +Wire Kit $169.95 Jbl BassPro Nano 6"x8" 200W Compact Enclosed Powered Amplified Car SubwooferJbl BassPro Nano 6"x8" 200W Compact Enclosed Powered Amplified Car Subwoofer $229.95
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Prices current as of last update, 06/03/25 12:50pm.

See also...
JBL Subwoofers, Subwoofers, Speakers & Subwoofers
Other Brands, Subwoofers, Speakers & Subwoofers
Sony Subwoofers, Subwoofers, Speakers & Subwoofers

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