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  3. Diamond Audio Car Audio & Electronics
  4. Diamond Audio Car Speakers

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Products in these categories contain items that carry a guarantee to fit your BMW 330Ci (change vehicle)
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All Diamond Audio Car Speakers

Diamond Audio offers a complete range of all car speakers for every audio enthusiast.

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Diamond Audio Speaker Installation & Accessories

Install your car speakers seamlessly with Diamond Audio's reliable installation accessories.

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Diamond Audio Vehicle Specific Speaker Kits

Customize your car audio with Diamond Audio's custom car speaker kits for specific vehicles.

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Diamond Audio 6.5" Speakers

Immerse in rich, detailed sound with Diamond Audio's 6.5" speakers for an unparalleled audio experience.

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Diamond Audio 6.5" Component Speakers

Immerse yourself in sound with Diamond Audio's 6.5" component speakers, designed for audio perfection.

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Diamond Audio 6x9" Speakers

Feel the beat with Diamond Audio's 6x9" speakers, crafted for powerful, high-quality audio.

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Diamond Audio 6x9" Component Speakers

Diamond Audio's 6x9" component speakers bring concert-quality sound to your vehicle.

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Diamond Audio 4" Speakers

Experience rich, detailed audio with Diamond Audio's 4" speakers, perfect for any setup.

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Diamond Audio 5.25" Speakers

Diamond Audio's 5.25" speakers deliver superior sound quality for audiophiles.

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Diamond Audio 6" Speakers

Elevate your audio experience with the crisp sound of Diamond Audio's 6" speakers.

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Diamond Audio 6.75" Speakers

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Diamond Audio 8" Speakers

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Diamond Audio Midbass & Midrange Speakers

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Other Diamond Audio Car Speakers

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Diamond Audio Tweeters

Achieve crystal-clear highs with Diamond Audio's precision-engineered tweeters.

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Diamond Audio Pro Audio Tweeters

Experience professional audio quality with Diamond Audio's pro audio tweeters and compression drivers.

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Diamond Audio Pro Audio Midrange Drivers

For superior sound, choose Diamond Audio's pro and full-range drivers.

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Diamond Audio Speaker Packages & Bundles

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Diamond Audio Harley-Davidson Speakers

Experience superior sound on your Harley with Diamond Audio's specially designed speakers.

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Diamond Audio Marine Speakers

Enjoy high-quality audio on the water with Diamond Audio's marine speakers for boats.

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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.
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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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Diamond Audio DMDX65C

270W Peak (90W RMS) 6.5" DMD Series 2-Way Component 4-ohm Speakers

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Diamond Audio DMDX65C

270W Peak (90W RMS) 6.5" DMD Series 2-Way Component 4-ohm Speakers

• 135 watts Peak Each, 45 watts RMS Each
• 3/4" Dome Tweeters
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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$279.99 /set

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Diamond Audio DMD42

120W Peak (60W RMS) 4" DMD Series 2 Way Coaxial 4-ohm Speakers

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Diamond Audio DMD42

120W Peak (60W RMS) 4" DMD Series 2 Way Coaxial 4-ohm Speakers

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" Silk Dome Tweeters
• Reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

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List price $119.99
-8% $109.99 /pair

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Diamond Audio DMDX4

180W Peak (60W RMS) 4" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers

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Diamond Audio DMDX4

180W Peak (60W RMS) 4" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers

• 90 watts Peak Each, 30 watts RMS Each
• Dome Tweeters
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 82 dB

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$109.99 /pair

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Diamond Audio MSMB82NEO

1200W Peak (600W RMS) 8" MSNEO Series Mid Bass 2-ohm Car and Motorcycle Speakers

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Diamond Audio MSMB82NEO

1200W Peak (600W RMS) 8" MSNEO Series Mid Bass 2-ohm Car and Motorcycle Speakers

• 600 watts Peak Each, 300 watts RMS Each
• DUPONT™ Kevlar cone material
• Impedance: 2 ohm
• Sensitivity: 95 dB

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$879.99 /pair

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Diamond Audio H65S

300W Peak (150W RMS) 6.5" HEX Series 2-Way 4-ohm Component Speaker System

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Diamond Audio H65S

300W Peak (150W RMS) 6.5" HEX Series 2-Way 4-ohm Component Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 88.3 dB

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$769.99 /set

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Diamond Audio H65SH

300W Peak (150W RMS) 6.5" HEX Series 4-ohm 2-Way Shallow Component Speaker System

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Diamond Audio H65SH

300W Peak (150W RMS) 6.5" HEX Series 4-ohm 2-Way Shallow Component Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 2" Silk Dome Tweeters
• Reinforced Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Diamond Audio H65A

300W Peak (150W RMS) 6.5" HEX Series 2-Way 4-ohm Component Speaker System

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Diamond Audio H65A

300W Peak (150W RMS) 6.5" HEX Series 2-Way 4-ohm Component Speaker System

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome Tweeters
• Anodized Aluminum cone material
• Impedance: 4 ohm
• Sensitivity: 88.3 dB

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Install kits available for most vehicles

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$769.99 /set

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Diamond Audio DMDX65

270W Peak (90W RMS) 6.5" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers

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Diamond Audio DMDX65

270W Peak (90W RMS) 6.5" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers

• 135 watts Peak Each, 45 watts RMS Each
• Silk Dome Tweeters
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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$159.99 /pair

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Diamond Audio DMDX6925C

390W Peak (130W RMS) 6x9" DMD Series 3-Way Component 4-ohm Speakers

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Diamond Audio DMDX6925C

390W Peak (130W RMS) 6x9" DMD Series 3-Way Component 4-ohm Speakers

• 195 watts Peak Each, 65 watts RMS Each
• 3/4" Dome Tweeters
• 2.5" Speakers included
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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$429.99 /set

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Diamond Audio DES652

240W Peak (120W RMS) 6.5" Diamond Elite Series 2-Way Coaxial 4-ohm Car Speakers

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Diamond Audio DES652

240W Peak (120W RMS) 6.5" Diamond Elite Series 2-Way Coaxial 4-ohm Car Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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$229.99 /pair

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Diamond Audio HX653DI

300W RMS 6.5" HEX Diamante Italia Series 3-Way 3.3-ohm Component Speaker System

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Diamond Audio HX653DI

300W RMS 6.5" HEX Diamante Italia Series 3-Way 3.3-ohm Component Speaker System

• 150 watts RMS Each
• 1" Silk Dome Tweeters
• Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 90 dB

Free Speaker Accessory Kit at Checkout!
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$1,319.99 /set

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Diamond Audio MP84

800W Peak (400W RMS) 8" Motorsport Series Pro Audio Full Range Coaxial Horn Speakers

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Diamond Audio MP84

800W Peak (400W RMS) 8" Motorsport Series Pro Audio Full Range Coaxial Horn Speakers

• 400 watts Peak Each, 200 watts RMS Each
• 1" Horn tweeters
• Impedance:
• Sensitivity: 103 dB

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$549.99 /pair

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Diamond Audio MP692 (MP 692)

1000W Peak (500W RMS) 6x9" MP Series Pro Audio 2-Way Coaxial 2-ohm Car Speakers

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Diamond Audio MP692 (MP 692)

1000W Peak (500W RMS) 6x9" MP Series Pro Audio 2-Way Coaxial 2-ohm Car Speakers

• 500 watts Peak Each, 250 watts RMS Each
• Horn tweeters
• Impedance: 2 ohm
• Sensitivity: 101 dB

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$499.99 /pair

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Diamond Audio MS8NEO

1400W Peak (700W RMS) 8″ MSNEO Series 4-ohm Midrange Car Speakers

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Diamond Audio MS8NEO

1400W Peak (700W RMS) 8″ MSNEO Series 4-ohm Midrange Car Speakers

• 700 watts Peak Each, 350 watts RMS Each
• Waterproof DUPONT™ Kevlar cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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$799.99 /pair

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Diamond Audio MS652NEO2S

1200W Peak (400W RMS) 6.5" MS NEO Series 2-Way Pro Coaxial 2-ohm Powersports and Motorcycle Shallow Speakers

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Diamond Audio MS652NEO2S

1200W Peak (400W RMS) 6.5" MS NEO Series 2-Way Pro Coaxial 2-ohm Powersports and Motorcycle Shallow Speakers

• 600 watts Peak Each, 200 watts RMS Each
• Polyethylene-Naphthalate Horn Tweeters
• Waterproof DUPONT™ Kevlar cone material
• Impedance: 2 ohm
• Sensitivity: 95 dB

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VIP Product Get $85.00 in rewards to spend later

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Install kits available for most vehicles

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$849.99 /pair

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Diamond Audio DES692

300W Peak (150W RMS) 6x9" Elite Series 2-way 4-ohm Coaxial Car Speakers

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Diamond Audio DES692

300W Peak (150W RMS) 6x9" Elite Series 2-way 4-ohm Coaxial Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Free Speaker Accessory at Checkout!
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VIP Product Get $26.00 in rewards to spend later

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$259.99 /pair

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Diamond Audio DMD65C (2-Pairs, 4-Total)

400W Peak (200W RMS) 6.5" DMD Series 2-Way Component Speaker System (2-Pairs)

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Diamond Audio DMD65C (2-Pairs, 4-Total)

400W Peak (200W RMS) 6.5" DMD Series 2-Way Component Speaker System (2-Pairs)

• 100 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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• 100 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Diamond Audio MS69NEO (2-Pairs, 4-Total)

2800W Peak (1400W RMS) 6X9" MS Neo Series Midrange Coaxial Speakers (2-Pairs)

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Diamond Audio MS69NEO (2-Pairs, 4-Total)

2800W Peak (1400W RMS) 6X9" MS Neo Series Midrange Coaxial Speakers (2-Pairs)

• 700 watts Max Each, 350 watts RMS Each
• Neodymium Tweeters
• Waterproof Black DUPONT™ Kevlar Cone
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.091"

Save 15% Off Package Deals at Checkout!
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• 700 watts Max Each, 350 watts RMS Each
• Neodymium Tweeters
• Waterproof Black DUPONT™ Kevlar Cone
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.091"

Diamond Audio MS69CX (2-Pairs, 4-Total)

2000W Peak (500W RMS) 6"x9" MS Series 2-way Coaxial Speakers (2-Pairs)

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Diamond Audio MS69CX (2-Pairs, 4-Total)

2000W Peak (500W RMS) 6"x9" MS Series 2-way Coaxial Speakers (2-Pairs)

• 500 watts Peak Each, 125 watts RMS Each
• 1" Titanium Dome Tweeters
• Thermal Molded Waterproof Kevlar cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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• 500 watts Peak Each, 125 watts RMS Each
• 1" Titanium Dome Tweeters
• Thermal Molded Waterproof Kevlar cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

Diamond Audio DES65C (2-Pairs, 4-Total)

480W Peak (240W RMS) 6.5" DES Series 2-Way Component Speaker System (2-Pairs)

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Diamond Audio DES65C (2-Pairs, 4-Total)

480W Peak (240W RMS) 6.5" DES Series 2-Way Component Speaker System (2-Pairs)

• 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Save 15% Off Package Deals at Checkout!
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• 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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