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JVC 12" Subwoofer + Monoblock Amplifier Bass Bundle

List price $249.98: CS-W120 12" W Series Single 4 ohm Car Subwoofer + KS-AX201 Monoblock AX2 Series Class AB Amplifier

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JVC 12" Subwoofer + Monoblock Amplifier Bass Bundle

List price $249.98: CS-W120 12" W Series Single 4 ohm Car Subwoofer + KS-AX201 Monoblock AX2 Series Class AB Amplifier

$116.49

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Small Subwoofer Driver Frame

Small Subwoofer Driver Frame

The JVC CS-W120's small frame design makes it a perfect solution for a wide range of applications. From custom OEM integration to traditional installs with minimal space, the CS-W120 fits almost anywhere. Its 5-1/16" depth Almost makes the driver a "shallow mount", making it perfect for the enthusiast that lacks space but wants the sound of a full sized woofer.





21.30 oz Magnet

Well Rounded Modest Power

The JVC CS-W120 houses a 21.30 oz Magnet to make up its motor and provide its modest power. At 150w RMS, the CS-W120 is perfect for a beginner's set up or for the seasoned veteran who is only looking to fill in the lack of low end in an existing system. A pair of drivers in a sealed enclosure is the most common set up, because it provides very well rounded sound quality.





Fine Tuned for Sealed Enclosures

Fine Tuned for Sealed Enclosures

The JVC CS-W120 was designed to save space. As such, it has been fine tuned to work best in a Sealed Enclosure, perfect for the enthusiast building a "SQ (Sound Quality) System". The driver is designed to work well within a fairly wide range of enclosure air volumes in order to fit anyone's particular sound preference.




JVC CS-W120

1000W 12" W Series Single 4 ohm Car Subwoofer
Quantity: 1

General Features:

  • 12" Single 4 ohm W Series Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 150 watts
  • Recommended power range: 125 - 150 watts RMS
  • Polypropylene Cone
  • High density foam surround
  • Super heat resistant ABS gasket
  • Faston terminals
  • Single 4 ohm voice coil
  • Top-mount depth: 5-1/16"
  • Cutout Diameter: 11-1/8"
  • Magnet Mass: 21.30 oz
  • Voice Coil Dia.: 1-1/2"
  • Frequency Response: 25 - 2500 Hz
  • Sensitivity: 85dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Individually




JVC KS-AX201

The KS-AX201 is a 2-Ohm stable Mono amplifier with 500 Watts Max power output and is perfect for connecting a single or pair subwoofers. It features high and low level inputs for connection to a factory or aftermarket stereo plus a low pass filter for use with a connected subwoofer. The CEA-2006 Compliant 250w RMS @2ohms is perfect for a humble system that does not require loud booming bass. Instead, the KS-AX201 is for the system that simply needs to fill the lack of low end.

High Level and Low Level Inputs

High Level and Low Level Inputs

The JVC KS-AX201 is set up to integrate into various applications. The Low Level RCA inputs allow for the amplifier to be installed in any traditional setup where the headunit provides RCA Preouts. In situations where there aren't any RCAs, like when integrating into an OEM Headunit, the amplifier has you covered, with its included High Level Inputs and Harness.

Small Frame

Small Footprint Means Big Use

At roughly 9.0" x 7.3" , the KS-AX201 can easily be hidden away in most vehicles where space comes at a premium. The amplifier fits under most seats, in trunk side cavities, under rear decks, and even in some kick-panels. The imagination is the only limitation to where an installer can hide the amplifier for a discreet install.


Bank of Settings

The Necessities

The KS-AX201 is intended to be as user friendly as possible. As such, the amplifier provides very easy to use settings, omitting the confusing knobs and switches of fancier amplifiers and leaving only the necessary. The LPF allows for the user to Filter out all harmful midrange and highs and the Input Sens. makes sure the amplifier matches the sensitivity of the headunit.

JVC KS-AX201

500W Monoblock AX2 Series Class AB Amplifier
Quantity: 1

General Features:

  • AX2 Series Monoblock Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 150 watts x 1 chan.
    • 2 ohms: 250 watts x 1 chan.
  • Max power output: 500 watts
  • CEA-2006 Compliant
  • Selectable Bass Boost: 0 to +12 dB (Off - High) bass boost at 45 Hz
  • Mono channel operation
  • Speaker-level (high-level) inputs
  • Power On Indicator (GREEN)/Protector Indicator (OFF)
  • Total Harmonic Distortion: 0.08% @100 Hz
  • Variable low-pass filter: 50 - 200 Hz
  • Frequency Response: 20 - 200 Hz
  • 8 gauge power and ground wiring is recommended for installation
    • Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier
  • Fuse Rating: 30A x 1
  • Weight: 3.10 lbs
  • Dimensions: 7.31"W x 8.94"L x 2.00"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Amplifier Power Specifications

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
150 watts x 1 channels
RMS Power @ 2 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
250 watts x 1 channels

Amplifier Specifications

Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

AB
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

500 watts
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

250 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
0.08%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Yes
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-Pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 200 Hz
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
Selectable Off - High
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
30A x 1 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes

Subwoofer Specifications

Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Single
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
150 watts
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
1000 watts
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Foam
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Polypropylene
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
0.70 cubic feet
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.50 cubic feet
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
85 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
25 - 2500 Hz
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
5.20 mm
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
5-1/16"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
11-1/8"
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Sealed

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

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Product Summary

Manufacturer

Model Number

CS-W120_KS-AX201

UPC

818060015045

Weight

11.60lbs

Internal SKU

csw120_ksax201

Internal Product ID

106805

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: JVC 12" Subwoofer + Monoblock Amplifier Bass Bundle