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  1. Home
  2. Boss Store
  3. Discontinued Boss Car Audio & Electronics
  4. Discontinued Boss Car Speakers
  5. Discontinued Boss 4" Speakers

Discontinued Boss 4" Speakers for your 2013 M5 close

Boss 4" car speakers are sure to bring the necessary highs to your vehicle's system.

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Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
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.
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.
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".
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.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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Boss CH4220

400W Peak (200W RMS) 4" Chaos Exxtreme Series 2-Way Coaxial Car Speakers

CH4220 big DISCONTINUED
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Boss CH4220

400W Peak (200W RMS) 4" Chaos Exxtreme Series 2-Way Coaxial Car Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 1" Piezoelectric Dome Tweeters
• Poly-Coated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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• 200 watts Peak Each, 100 watts RMS Each
• 1" Piezoelectric Dome Tweeters
• Poly-Coated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Boss SK422

4" 2-way Phantom Skull Series Full Range Coaxial Car Speakers w/ Light Up Cover

SK422 big DISCONTINUED
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Boss SK422

4" 2-way Phantom Skull Series Full Range Coaxial Car Speakers w/ Light Up Cover

Phantom Skull Series 4" 2-Way Full Range Speakers • 250W Peak • 120W RMS • Black Metallic Poly Injection Cone • 1" Mylar Dome Tweeter • Removable Skull Design Tweeter Cover • Skull Eyes Light up to the Beat

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4

Phantom Skull Series 4" 2-Way Full Range Speakers • 250W Peak • 120W RMS • Black Metallic Poly Injection Cone • 1" Mylar Dome Tweeter • Removable Skull Design Tweeter Cover • Skull Eyes Light up to the Beat

BOSS Audio NX424

250W Max (125W RMS) NX Series 4-Way Full Range Car Speakers

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BOSS Audio NX424

250W Max (125W RMS) NX Series 4-Way Full Range Car Speakers

• 125 Watts Max Each, 62.5 Watts RMS Each
•.05",hard normal dome Tweeter
• Poly injection mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 90 dB
• Mounting Depth: 2"

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Add details to confirm fitment.

• 125 Watts Max Each, 62.5 Watts RMS Each
•.05",hard normal dome Tweeter
• Poly injection mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 90 dB
• Mounting Depth: 2"

Boss RT-4150 4" RIOT Series

RT-4150 big DISCONTINUED
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Boss RT-4150 4" RIOT Series

200W Peak Power Handling • Poly Injection Cone Material • Mylar Dome Tweeter

200W Peak Power Handling • Poly Injection Cone Material • Mylar Dome Tweeter

Boss R43

4" 3-Way Chaos Exxtreme Series Coaxial Car Audio Speakers

3-Year Manufacturer's Extended Warranty When Bought Here!

R43 big DISCONTINUED
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Boss R43

4" 3-Way Chaos Exxtreme Series Coaxial Car Audio Speakers

• 200 Watts Max, 100 Watts RMS
• 1/2" Aluminium Dome Tweeters
• Mounting Depth: 1-3/4"
• Polypropylene Woofer Cone
• 4 Ohm Impedance
• Sensitivity: 90dB

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3-Year Manufacturer's Extended Warranty When Bought Here!

No Fit Icon Doesn't fit your M5

• 200 Watts Max, 100 Watts RMS
• 1/2" Aluminium Dome Tweeters
• Mounting Depth: 1-3/4"
• Polypropylene Woofer Cone
• 4 Ohm Impedance
• Sensitivity: 90dB

Boss CER422

4" 2-Way Chaos Erupt Series Full Range Car Audio Speakers

3-Year Manufacturer's Extended Warranty When Bought Here!

CER422 big DISCONTINUED
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Boss CER422

4" 2-Way Chaos Erupt Series Full Range Car Audio Speakers

• Peak Power: 200W
• RMS Power: 100W
• 1" Dome Tweeter
• Mounting Depth: 1-13/16"
• Injection Molded Polypropylene Cone
• 4 Ohm Impedance
• Sensitivity: 90dB

Promo Savings Icon

3-Year Manufacturer's Extended Warranty When Bought Here!

No Fit Icon Doesn't fit your M5

• Peak Power: 200W
• RMS Power: 100W
• 1" Dome Tweeter
• Mounting Depth: 1-13/16"
• Injection Molded Polypropylene Cone
• 4 Ohm Impedance
• Sensitivity: 90dB

Boss RIP-424 4" Ripper Series

RIP-424 big DISCONTINUED
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Boss RIP-424 4" Ripper Series

250W Peak Power Handling • Metal Injection Cone Material • Titanium Tweeter

250W Peak Power Handling • Metal Injection Cone Material • Titanium Tweeter

Boss AVA-4255 4" KLASH Series

AVA-4255 big DISCONTINUED
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Boss AVA-4255 4" KLASH Series

200 Watt Peak Power Handling • Poly Injection Coated Paper • Mylar Dome Tweeter

200 Watt Peak Power Handling • Poly Injection Coated Paper • Mylar Dome Tweeter

Boss BL4250

4" Blade Series 2-Way Full Range Speakers

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Boss BL4250

4" Blade Series 2-Way Full Range Speakers

4" 2-Way Full Range Speakers • 250 watts Max • Poly-Injection Cone • 1" High-Temp Aluminum Voice Coil • Butyl Rubber Surround • .75" Mylar Dome Tweeter • Frequency Response: 95 - 20,000 Hz • Sensitvity: 92 dB • 25 oz. Magnet • 4 ohm Impedance

No Fit Icon Doesn't fit your M5

4" 2-Way Full Range Speakers • 250 watts Max • Poly-Injection Cone • 1" High-Temp Aluminum Voice Coil • Butyl Rubber Surround • .75" Mylar Dome Tweeter • Frequency Response: 95 - 20,000 Hz • Sensitvity: 92 dB • 25 oz. Magnet • 4 ohm Impedance

Boss RIP-4204 4" Ripper Series

RIP-4204 big DISCONTINUED
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Boss RIP-4204 4" Ripper Series

250W Peak Power Handling • Metal Injection Cone Material • Titanium Tweeter

250W Peak Power Handling • Metal Injection Cone Material • Titanium Tweeter

Boss D40.2

4" 2-way Diablo Series Speakers (D402)

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Boss D40.2

4" 2-way Diablo Series Speakers (D402)

4" Diablo Series Car Speakers • 250W Max • 125W RMS • Poly-injection cone woofer • Rubber surround • 1" Mylar dome tweeter • 4 ohm impedance • 1" Aluminum voice coil • 25oz. Magnet

No Fit Icon Doesn't fit your M5

2

4" Diablo Series Car Speakers • 250W Max • 125W RMS • Poly-injection cone woofer • Rubber surround • 1" Mylar dome tweeter • 4 ohm impedance • 1" Aluminum voice coil • 25oz. Magnet

Boss R422

Riot Series 4" 2-way Speakers

R422 big DISCONTINUED
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Boss R422

Riot Series 4" 2-way Speakers

4" 2-Way Full Range Speakers • 100W RMS • 1" Neodymium Tweeter • 200W Peak • High Quality Coated Paper Cone • 1" High Temperature Aluminum Voice Coil • 20 oz. Magnet Structure • Rubber Magnet Cover

No Fit Icon Doesn't fit your M5

4" 2-Way Full Range Speakers • 100W RMS • 1" Neodymium Tweeter • 200W Peak • High Quality Coated Paper Cone • 1" High Temperature Aluminum Voice Coil • 20 oz. Magnet Structure • Rubber Magnet Cover

Boss GT422

GT Series 4" 2-way Speakers (GT-422)

GT422 big DISCONTINUED
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Boss GT422

GT Series 4" 2-way Speakers (GT-422)

Power Handling: Peak: 240 watts / RMS: 120 watts • Blue chrome poly-injection cone • 1" polyimide dome tweeter • Frequency Response: 95 Hz - 20 kHz

No Fit Icon Doesn't fit your M5

Power Handling: Peak: 240 watts / RMS: 120 watts • Blue chrome poly-injection cone • 1" polyimide dome tweeter • Frequency Response: 95 Hz - 20 kHz

EXCLUSIVE

Boss CH4230 w/ Sound Dampening

4" 3-way Chaos Series Full Range Speakers with Two 10" x 10" Pieces of Sound Dampening Material

CH4230_CSM big DISCONTINUED
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Boss CH4230 w/ Sound Dampening

4" 3-way Chaos Series Full Range Speakers with Two 10" x 10" Pieces of Sound Dampening Material

4" 3-Way Chaos eXXtreme Series Car Speakers • 225W Max • 115W RMS • Red Poly-Injection Cone Woofer • 1" Polyimide Dome Midrange • 1/2" Piezo Tweeter • 1" High-Temperature Aluminum Voice Coil • Includes Sound Dampening Material

No Fit Icon Doesn't fit your M5

34

4" 3-Way Chaos eXXtreme Series Car Speakers • 225W Max • 115W RMS • Red Poly-Injection Cone Woofer • 1" Polyimide Dome Midrange • 1/2" Piezo Tweeter • 1" High-Temperature Aluminum Voice Coil • Includes Sound Dampening Material

Boss SE422

4" 2-way Chaos Series Special Edition Coaxial Car Speakers

SE422 big DISCONTINUED
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Boss SE422

4" 2-way Chaos Series Special Edition Coaxial Car Speakers

4" Chaos Special Edition Series Car Speakers • 200W Max • 100W Rms • Injection Molded Polypropylene Cone Woofer • Butyl Rubber Surround • 1" Polymide Dome Tweeter • 4 Ohm Impedance

No Fit Icon Doesn't fit your M5

3

4" Chaos Special Edition Series Car Speakers • 200W Max • 100W Rms • Injection Molded Polypropylene Cone Woofer • Butyl Rubber Surround • 1" Polymide Dome Tweeter • 4 Ohm Impedance

Boss CH4230

450W Peak (225W RMS) 4" Chaos Exxtreme Series 3-Way Coaxial Car Speakers

CH4230 big DISCONTINUED
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Boss CH4230

450W Peak (225W RMS) 4" Chaos Exxtreme Series 3-Way Coaxial Car Speakers

• 225 watts Peak Each, 112.5 watts RMS Each
• 1/2" Piezoelectric Dome Tweeters
• Polyurethane cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Add details to confirm fitment.
28

• 225 watts Peak Each, 112.5 watts RMS Each
• 1/2" Piezoelectric Dome Tweeters
• Polyurethane cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Boss P45.4C

500W Peak (250W RMS) 4” Phantom Series 4-way Coaxial Car Speakers

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Boss P45.4C

500W Peak (250W RMS) 4” Phantom Series 4-way Coaxial Car Speakers

• 250 watts Peak Each, 125 watts RMS Each
• 2" Piezoelectric Dome Tweeters
• Electroplate Injection cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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Add details to confirm fitment.
13

• 250 watts Peak Each, 125 watts RMS Each
• 2" Piezoelectric Dome Tweeters
• Electroplate Injection cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Boss BRS40

Replacement 4" 50W Full Range Speaker

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Boss BRS40

Replacement 4" 50W Full Range Speaker

• 50 Watts Max Each, 25 Watts RMS Each
• Polypropylene Woofer Cone
• 4 Ohm Impedance
• Mounting Depth: 1.75"

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1

• 50 Watts Max Each, 25 Watts RMS Each
• Polypropylene Woofer Cone
• 4 Ohm Impedance
• Mounting Depth: 1.75"

 
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    Boss 4" Speakers Information

    4" speakers from Boss are an excellent choice for crystal clear music. Replace those factory speakers and quickly notice the difference in the sound and quality of your music and audio. When you are ready for new 4" speakers, think of Boss.
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