JL Audio CS112LG-TW1-2 Subwoofer Enclosure
530,00 €
JL Audio CS112LG-TW1-2 is a passive car subwoofer enclosure designed for a separate low-frequency system section. Its sealed cabinet does not require clearance for bass-reflex port airflow. The 300 W RMS figure specifies continuous power handling, while the 2 Ω nominal impedance is important when choosing an amplifier capable of driving this load reliably. A black steel mesh grille is included.
JL Audio CS112LG-TW1-2 is a passive sealed car subwoofer enclosure designed for the low-frequency section of an in-car audio system. It must be connected to a separate power amplifier. The complete enclosure has a nominal impedance of 2 Ω and a continuous power-handling rating of 300 W RMS.
The RMS figure describes continuous power handling rather than a short-term peak-power value. It helps you select an amplifier according to the power it can deliver into a 2 Ω load. This figure alone does not indicate how loud the finished system will be. The final result also depends on the amplifier, its settings, and the position of the enclosure inside the vehicle.
Sealed enclosure and finish
The sealed enclosure does not have a bass-reflex port. You therefore do not need to reserve extra clearance for airflow around a port. However, the distance between the enclosure and the walls of the boot can still affect the perceived bass balance. It is worth testing several orientations before choosing the final position.
The enclosure is covered in black carpet, a finish that visually complements the trim commonly found in vehicle luggage compartments. The included black steel mesh grille helps protect the driver from direct contact with luggage. Heavy objects should not be placed on the grille.
Positioning inside the vehicle
The enclosure requires a space measuring 457 mm wide, 349 mm high, and 168 mm deep. Allow additional room for the connection and cable routing. Before buying, measure the intended installation area with the boot closed. Also check that the enclosure will not interfere with the seats or the boot lid.
As the enclosure weighs 11.80 kg, it must be secured firmly so that it cannot move while the vehicle is in motion. For an initial installation, try placing it near the rear of the boot. Then compare several orientations while playing the same music and listening from the driver’s seat. Choose a position where the grille remains unobstructed and luggage cannot press against the steel mesh.
Amplifier selection and connection
This is a passive enclosure, so it does not contain the power amplifier required to produce sound. The signal must come from the speaker output of an external amplifier. A line-level output from a player or car stereo is not sufficient on its own.
Choose an amplifier that can operate reliably with a 2 Ω load. Check its stated RMS output specifically at that impedance. A power rating given for a different impedance does not show how much power the amplifier will deliver when used with this enclosure.
The 300 W RMS rating should not be interpreted as a mandatory amplifier output. The system must be adjusted so that the signal remains free from distortion. Setting the gain too high can cause distortion before the desired listening level is reached.
A typical signal path consists of the source unit, the amplifier, and the subwoofer enclosure. The cable running from the amplifier must be suitable for its speaker-level output. Maintain consistent polarity throughout the system when making the connections. Amplifier selection can also be discussed at our specialist store in Kaunas.
Matching the subwoofer with the other car speakers
Set the low-pass filter on the external amplifier or audio processor. Begin near the point where the main speakers start to reproduce bass less effectively. Then adjust the filter so that there is neither a gap nor excessive overlap between the subwoofer and the rest of the system.
The gain control is not an additional volume control. Begin with a low setting and increase it gradually until the bass blends naturally with the rest of the system. If the sound becomes harsh or distorted, reduce the gain and check the source signal. If the amplifier provides a phase or polarity setting, compare the available positions without changing the volume or filter settings. Select the position that gives the smoothest integration with the front speakers.
Who this model is for
This model is intended for a car audio system that already includes a suitable amplifier. It is also suitable when planning a new, separate low-frequency section. One of the main considerations is whether the vehicle has enough room for the enclosure.
It is not designed as a direct replacement for a car door speaker. It is a separate enclosed component for the bass section of an automotive audio system.
Technical specifications
| Model | JL Audio CS112LG-TW1-2 |
|---|---|
| Product type | Passive car subwoofer enclosure |
| Continuous power handling | 300 W RMS |
| Nominal system impedance | 2 Ω |
| Enclosure type | Sealed |
| Finish | Black carpet |
| Protective grille | Black steel mesh, included |
| External width | 18 in / 457 mm |
| External height | 13.75 in / 349 mm |
| External depth (D1) | 6.625 in / 168 mm |
| Net weight | 26.02 lb / 11.80 kg |
What’s included
The package contains the sealed subwoofer enclosure and a protective black steel mesh grille. The grille is intended to cover and help protect the driver when the enclosure is installed in the boot.
FAQ
Does this subwoofer enclosure require a separate amplifier?
Yes. It is a passive enclosure and therefore requires an external power amplifier. The amplifier must be suitable for operation with a 2 Ω load.
Can it be connected directly to a car stereo?
Not to a conventional line-level output. The signal must pass through a power amplifier and reach the enclosure from the amplifier’s speaker output.
What does the 300 W RMS rating mean?
It is the continuous power-handling rating. It is not a short-term maximum-power figure and does not directly indicate how loud the system will be.
What is important about the 2 Ω impedance?
The amplifier must be able to operate reliably into a 2 Ω load. Assess its power using the specifications stated specifically for this impedance.
How should I choose a position for the enclosure in the boot?
First check the enclosure dimensions, the space required for the cable, and whether the boot can close properly. Then compare several enclosure orientations while listening from the driver’s seat.
How should I set the low-pass filter?
Adjust the filter on the amplifier or audio processor. Match it to the frequency range reproduced by the main speakers and evaluate the result by listening.
What does the grille protect against, and how should luggage be arranged around it?
The included black steel mesh grille helps protect the driver from direct contact with luggage. Do not place heavy objects on it or allow cargo to press against it.
Is this enclosure intended for a home audio system?
No. It is designed for an in-car audio system. In addition, a 2 Ω load is not typical for many home amplifiers.
