HOME
CAR AUDIO
 
CAR STEREO  
CD CHANGERS  
IN-DASH RECEIVERS  
CAR SUBWOOFERS  
CAR AMPLIFERS  
IPOD & MP3 CAR ADAPTERS  
SATELLITE RADIO  
CAR SPEAKERS  
BLUETOOTH CAR KITS  
CAR VIDEO
IN-DASH DVD RECEIVERS  
GPS NAVIGATION SYSTEMS  
HEADREST MONITORS  
PORTABLE ELECTRONICS
MP3 PLAYERS  
PORTABLE DVD PLAYERS  
PORTABLE NAVIGATION  
ELECTRONICS MANUFACTURERS
AUDIOBAHN ELECTRONICS  
BAZOOKA ELECTRONICS  
BOSE ELECTRONICS  
JVC ELECTRONICS  
KENWOOD ELECTRONICS  
KICKER ELECTRONICS  
PIONEER ELECTRONICS  
MTX AUDIO  
SONY ELECTRONICS  
INSTALLATION ACCESSORIES
SUBWOOFER BOX
CAR ALARM
REMOTE CAR STARTERS  
RADAR DETECTORS
HOME AUDIO
COUPONS
HELP CENTER
SUBWOOFER WIRING DIAGRAM  
SUB BOX VOLUME CALCULATOR  
BUILDING SUB BOXES  
CAR RELATED WEBSITES
 
CarAudioKing.com
 
CAR REVIEWS
CAR TECH
LATEST GADGETS
CAR AUDIO VIDEO ARTICLES
 
   
   
Technology blogs  
Bloglisting.net - The internets fastest growing blog directory  
Blogadr.com - Listed (add your blog to Blogadr.com)  
 
Listed in LS Blogs  
Blog Directory  
 
   
   
 

SUBWOOFER BOX TYPES:

Sealed Sub Enclosures
This seams to be one of the most popular subwoofer box used in SPL competition because it produces great low level power handling and require less space than most other speaker boxes need. The sealed box is the most forgiving to design errors. Now a couple of he cons of sealed boxes. You may notice more distortion at high frequency and the speaker magnet will not cool as easily as non sealed boxes. Now even though sealed boxes require the least amount of space if you have even less space than need for you sealed box for a give subwoofer you can use the Isobaric setup. This setup requires less air space in the sealed box but takes two subwoofers to get the output as if you had the one subwoofer in the correct sealed box. Isobaric is when you have a speaker mounted in a sealed box like normal but also mount another subwoofer to the first face to face.


Vented / Ported Boxes / Bass Reflex

If you are going to be making your own sub box, the bass reflex boxes are not nearly as forgiving as the sealed box and you will hear you design mistakes. The bass reflex or ported box is basically a sealed box with a port or vent tuned to a specific frequency. This setup has good power handling and excellent efficiency. Now the down side of the Ported box. The ported boxes can be much larger than sealed boxes. Playing a subwoofer below the tuned frequency and power handling will produce a very poor sound and will damage the subwoofer. Do not lower the port below the manufacturer’s recommended frequency, this will only make things a lot worse.

An enclosure with a port tuned to a specific frequency. There is no internal pressure working against the speaker, giving it worse transient response and speaker damping than a sealed enclosure. It is more efficient (more sound) than sealed enclosures because the back waves are channeled into the listening environment along with the front waves. The ports in these enclosures help produce deeper bass up to the tuned frequency. Below the tuned frequency power handling is bad and damage to the woofer is likely to occur. Also, prefabricated boxes are not built with ports tuned to each speaker manufacturer’s recommendations and may sound muddy or sloppy depending which speaker is used. The air exiting the ports sometimes produce a medium to loud noise called port noise (speaker farts).

Pros:
• more efficient than sealed enclosures (higher sound output)
• will generally have a better low frequency extension for a given response (up to tuned frequency)

Cons:
• larger than comparable sealed enclosure
• poor power handling below tuned frequency making it easier to damage subwoofer • reduced transient response
• ports on pre-fabricated boxes are not generally tuned to speaker manufacturer’s recommendations and sound can be muddy/sloppy
• possible port noise (speaker farts)

Bandpass Sub Enclosures
The most popular in SPL competition. A bandpass box is basically a port box with another enclosure mounted to the front of it with another port or vent. When built correctly will produce very high SPL. But here is the problem. Bandpass subwoofer box is not for giving at all. If the box is not built correctly it will a total waste of time and money and sound horrible. Bandpass boxes have to be tuned for a narrow bandwidth of frequency response. Suboofers are susceptible to cone over-excursion for frequencies outside of the tuned frequency response, and even worse if below. Please make sure to use a very good crossover to keep the frequency response in the correct range.

A bandpass enclosure is basically a combination of a sealed and vented enclosure. “A bandpass enclosure can sound good and give you a flat response but most of the generic bandpass enclosures are not designed for a flat response. They are designed to impress you in the stores. This means that they are built to produce a large peak at some frequency near 60hz. These enclosures will work well with something like rap music but generally won't sound good with other types of music. If you use a bandpass enclosure, it should be designed specifically for your speakers”

Pros:
• Great power handling
• Good low frequency response

Cons:
• Not as efficient as vented enclosures
• Ports are not tuned to speaker requirements
• Most speakers will sound better in ported or sealed enclosure

Polyester Fiber Fill - is used to slow down back waves from a speaker inside the box, making the subwoofer perform as though it were in a bigger enclosure than it is really mounted in. It is recommended to use approximately 1 pound of fill per cubic foot of box volume. In enclosures were it is possible for fill to blow out of port a light multipurpose adhesive should be used to secure the fill to the wall linings.

Subwoofer Box Volume Calculator:
Visit our subwoofer box volume calculator for more information about getting the right sub box for your car.
 
CAR ELECTRONICS NEWS:

SubThump Offering Superior Yet Cost Effective Range of Jeep Wrangler Subwoofer Boxes - Digital Journal

SubThump Offering Superior Yet Cost Effective Range of Jeep Wrangler Subwoofer Boxes
Digital Journal
Replying to a query related to GM Custom Center Console Sub Boxes on offer, one of the executives at SubThump recently stated, “SubThump's manufacturing capabilities and understanding of diverse needs of vehicle owners reflects in our premium offering ...

How Bose Built the Best Car Stereo (Again) - Popular Mechanics

Popular Mechanics

How Bose Built the Best Car Stereo (Again)
Popular Mechanics
"When we took apart the doors on the '83, we saw that the assembly-line workers used a blowtorch to cut out each opening for the speaker enclosures," says Bud MacLellan, Bose engineering support manager. "A couple years later, Cadillac was making ...

Wilson Audio Specialties Sabrina loudspeaker - Stereophile Magazine

Stereophile Magazine

Wilson Audio Specialties Sabrina loudspeaker
Stereophile Magazine
Most obvious is that the Wilson Sabrina is a single-box speaker, not a two-box affair like the WATT/Puppy. According to Wilson Audio, the inspiration for the Sabrina was the top-of-the-line Alexandria XLF, the objective being "to take the wealth of ...

PL+S 2016: show preview - Installation International

Installation International

PL+S 2016: show preview
Installation International
Designed by d&b in collaboration with noise consulting and software development experts SoundPLAN, NoizCalc predicts sound propagation of multiple coherently emitting sources such as line arrays and subwoofer arrays. Using 3D terrain data the software ...

and more »

PL+S 2016: JBL by Harman unveils new PA systems - Installation International

Installation International

PL+S 2016: JBL by Harman unveils new PA systems
Installation International
The two loudspeakers, housed in versatile enclosures, can be ground stacked or pole mounted and each features an 8in woofer and 1in neodynamium black nylon dome tweeter powered by a 320W power amp section. Also debuting at Prolight + Sound is the EON ...

SubThump Offers Expertly Designed Silverado Sierra Regular Cab Subwoofer Boxes - Digital Journal

SubThump Offers Expertly Designed Silverado Sierra Regular Cab Subwoofer Boxes
Digital Journal
​SubThump, an online supplier of subwoofer enclosures, is all about quality, assurance, integrity and professionalism. Headquartered in Connersville, IN, the online supplier of subwoofer enclosures has garnered mainstream acceptance by designing, ...

New Peavey amps and speaker enclosures - miPRO

miPRO

New Peavey amps and speaker enclosures
miPRO
Thanks to its DSP-equipped power section, the Dark Matter series SPL (Sound Pressure Level) enclosures feature modern styling and come in four models: the DM 112, DM 115, DM 118 Subwoofer and DM 115 Subwoofer. The Dark Matter LCD display and ...

NATURAL EXPRESSION: Meet the Compact, Versatile XPRS Series of Active, Wooden Enclosure Speakers Featuring ... - Business Wire (press release)

Audio Media International

NATURAL EXPRESSION: Meet the Compact, Versatile XPRS Series of Active, Wooden Enclosure Speakers Featuring ...
Business Wire (press release)
The XPRS Series comprises the XPRS15 and XPRS12 two-way full range speakers, and the XPRS215S dual 15-inch subwoofer. All three enclosures feature 15mm birch plywood construction for a dynamic sound that works across all musical genres.
Pioneer Pro Audio expands speaker offeringAudio Media International
VIDEO: Pioneer introduces XPRS Series speakersmiPRO

all 6 news articles »

Seven Sources of Superb Portable PA - MIX

MIX

Seven Sources of Superb Portable PA
MIX
Alto Professional's Black Series range includes the Black 12 two-way full-range pair ($599 street, each) with 12-inch LF transducer and 1.75-inch HF driver, and accompanying Black 15 SUB subwoofer with 15-inch long-excursion LF driver ($1,099 street ...

Libratone Zipp wireless speakers review: Great looks, good sound, lots of features - TechHive

TechHive

Libratone Zipp wireless speakers review: Great looks, good sound, lots of features
TechHive
Libratone doesn't have anything in its lineup that can compete with Sonos' larger Play:5 or Playbar sound bar, nor does it offer a dedicated wireless subwoofer, but the Zipp and Zipp Mini deliver great sound, multi-room audio support, battery-powered ...


  HOME CAR AUDIO CAR VIDEO PORTABLE ELECTRONICS CONTACT US SITEMAP
CarAudioProductReviews.com