At this present time our store location is open by appointment only.

Automotive Passive Subwoofer Enclosures

Automotive Passive Subwoofer Enclosure Collection

Loaded subwoofer enclosures come in Passive or Active styles. Passive enclosures, or boxes, require an additional amplifier to produce sound while Active enclosures have amplifiers built into them and are self contained all-in-one systems.

Subwoofer drivers, also know as subs, are specific only to the lowest frequencies of the sound spectrum, and are the largest drivers in any car stereo. They are generally found in sizes of 8″ – 12″ diameters. Subs move massive amounts of air creating large pressure waves. These large pressure waves give that bottom end punch you expect from your kick drum, the undeniable funk of a bass guitar and the earthshaking bump of a house beat. 

The frequency range of a subwoofer generally covers the first 2 octaves of the sound spectrum, also known as the lows. Subwoofers require their own mounting structure called a sub box. Sub boxes are built to create negative pressure on the sub to help move their large diameter cones back and forth for accurate reproduction of low end frequencies. Custom subwoofer boxes are built to meet certain cubic air space specifications of sub drivers and are sometimes custom built to fit under seats or other hidden areas to maximize the use of space in the vehicle. JL Audio’s Stealthbox's are custom designed to fit many vehicles while minimizing the footprint needed to be installed in your car.

RMS vs. MAX power: The RMS rating of any speaker driver is the continuous power rating that the speaker is designed to withstand at a maximum continued volume rating. The RMS rating is the only number to go by when pairing your speakers with an amplifier. As an example a speaker with a 100Watt, or 100W for short, RMS rating and a 300-Watt Max rating is ultimately a 100 Watt speaker. The Max rating is the temporary spikes in voltage that the speaker can handle. A 100-Watt RMS / 300-Watt Max speaker is going to outperform a 100W RMS / 250W Max speaker at higher volumes, but may not be the more detailed reference speaker.

Ohms: The Ohm rating, or resistance rating, of a speaker is an essential part of a well balanced car stereo system. Many JBL factory speaker systems have 2ohm drivers. Most aftermarket speakers are 4ohm drivers. Replacing these types of factory speakers may require a wiring bypass of the factory amplifier.

Driver resistance ratings are essential when pairing subwoofer and speaker drivers with amplifiers. An amplifier that is 750W @ 2ohms might only generally be 500W or less @ 4ohms. When purchasing a subwoofer driver the correct pairing of a subwoofer’s RMS wattage and Ohm ratings with an amplifier’s output power rating is absolutely essential.

Frequency Response: Frequencies are measured in Hertz or Hz for short. The frequency response of speaker drivers will generally fall between 20Hz and 22kHz. At 20Hz the sound spectrum begins. Every time you double your frequency you move up one octave in scale. 20-Hertz to 40-Hertz covers the first Octave, 40Hz to 80Hz covers the next octave and so on. Subwoofer drivers are generally tuned to crossover at 80 Hertz. This can depend on the subwoofer type and the type of music you listen to.

2 products

  • 10" 500W Thin Subwoofer Enclosure, 2Ω or 4Ω : Kicker 46TL7T10 Kicker 46TL7T10 : 10-Inch Thin Loaded Subwoofer Enclosure, 500-Watts RMS, 2-Ohm or 4-Ohm Impedance, input side.

    Kicker 46TL7T10 : 500W 10" Thin Subwoofer Enclosure, 2Ω or 4Ω

    Pre-Order Today!

    10-Inch Thin Loaded Subwoofer Enclosure, 500-Watts RMS, 2-Ohm or 4-Ohm Impedance Barely seven inches deep, the Kicker TL7T 10-Inch thin subwoofer enclosure is perfect for big bass under or behind your seats. Genuine Kicker L7T subwoofer included Angled design for excellent fit Heavy internal bracing Single 2-Ohm terminal Easy to install and wire Thick black carpeting Rounded corners Embroidered Kicker logo Thick MDF construction Specifications Type single truck Woofer [in, cm] Solo-Baric L7T 10" 2Ω or 4 Ω Impedance [Ohms] 2 or 4 Recommended Amplifier Power [watts RMS] 500 SENSITIVITY [dB 1w/1m] 85.98 Box Top Depth (in, cm): 4-3/8, 11.3 Box Bottom Depth (in, cm): 7-1/4, 18.5 Box Height (in, cm): 12, 30.4 Box Width (in, cm): 20-1/4, 51.5 What's in the box? one loaded enclosure with one 10-inch subwoofermounting hardware (4 - black brackets, 4 - #10 black wood screws x 20mm, 8 - #8 black wood screws 20mm long)one owner's manualtwo stickers Kicker L7T Subwoofer Enclosure Manual

    Pre-Order Today!

    $299.99

  • Kicker 47QL7R12 : 12-Inch Quad-Loaded Subwoofer Enclosure, 2400-Watt, 2-Ohm Final Impedance. Kicker 47QL7R12 : 12-Inch Quad-Loaded Subwoofer Enclosure, 2400-Watt, 2-Ohm Final Impedance, port side.

    Kicker 47QL7R12 : 2400W 12" Subwoofer Enclosure

    Pre-Order Today!

    12-Inch Quad-Loaded Subwoofer Enclosure, 2400-Watt, 2-Ohm Final Impedance With 2,400-watts of RMS power handling, this computer-designed bass-head subwoofer system makes rattling your ride easier than ever! Four KICKER L7R 12-inch subs come pre-loaded in this enclosure. The port is flared perfectly and tuned to 31Hz for some serious bump - without the expense of a custom enclosure. This Kicker quad-sub box is made to take the pressure! Heavy, birch-veneer plywood construction and thick internal bracing keeps the enclosure stable, even under extreme SPL levels. Covered in durable black carpet and custom embroidered with the Kicker logo, the 47QL7R12 is pre-wired to a pair of two-Ohm terminals and 2400W of RMS power. Specifications Type QUAD Woofers/size [in, cm] 4 Solo-Baric L7R 12, 30 Impedance [Ohms] Dual 2-Ohm Terminals Recommended Amplifier Power (watts RMS) 2400 SENSITIVITY [dB 1w/1m] 98 Box Depth (in, mm): 28, 711 Box Height (in, mm): 20-1/4, 514 Box Width (in, mm): 35-7/8, 912 What's in the box? 1 47QL7R122, 1 enclosure hardware pack, 1 instruction manual, 2 KICKER stickers,1 47QL7R122, 1 massive sub enclosure, 1 enclosure mounting bracket kit,Customer Info Card w/link to product page (via QR Code).

    Pre-Order Today!

    $1,799.99

Login

Forgot your password?

Don't have an account yet?
Create account