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  1. Home
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  4. 6.5" Speakers

6.5" Speakers for your 2004 325Ci close

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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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Hertz DCX 165.3 (DCX165.3)

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

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Hertz DCX 165.3 (DCX165.3)

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

• 120 watts Peak Each, 60 watts RMS Each
• 5/8" PEI (Polyetherimide) Dome tweeters with neodymium magnets
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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List price $150.00
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Hertz MPX 165.3

400W Peak (200W RMS) 6.5" Mille Pro Series 2-Way Pro Audio Coaxial 4-ohm Speakers

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Hertz MPX 165.3

400W Peak (200W RMS) 6.5" Mille Pro Series 2-Way Pro Audio Coaxial 4-ohm Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 1" Tetolon Soft Dome Tweeters
• Pressed Pulp with Cotton Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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List price $470.00
$449.99 /pair

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Rockford Fosgate Punch P1V2-65

300W Peak (150W RMS) 6.5" Punch P1 Series 3 Way Coaxial 4-ohm Speakers

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Rockford Fosgate Punch P1V2-65

300W Peak (150W RMS) 6.5" Punch P1 Series 3 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Tetolon Inverted Dome tweeters
• 3/8" Polypropylene-Piezo super tweeters
• Mica reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $239.99
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Orion HCCA64N

2800W Peak (700W RMS) 6.5" HCCA Series Pro Audio Midrange 4-ohm Car Speakers

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Orion HCCA64N

2800W Peak (700W RMS) 6.5" HCCA Series Pro Audio Midrange 4-ohm Car Speakers

• 1400 watts Peak Each, 350 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99 dB

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JBL Club 64SQ (JBLSPKCB64SQ)

450W Peak (150W RMS) 6.5" Club Series 2 Way Coaxial 3-ohm Speakers

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JBL Club 64SQ (JBLSPKCB64SQ)

450W Peak (150W RMS) 6.5" Club Series 2 Way Coaxial 3-ohm Speakers

• 225 watts Peak Each, 75 watts RMS Each
• Silk Edge Driven Dome tweeters
• Carbon Fiber cone material
• Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

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List price $199.95
-15% $169.95 /pair

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JVC CS-DR621

600W Peak (100W RMS) 6.5" DRVN DR Series 2-Way 4-ohm Shallow-Mount Coaxial Car Speakers

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JVC CS-DR621

600W Peak (100W RMS) 6.5" DRVN DR Series 2-Way 4-ohm Shallow-Mount Coaxial Car Speakers

• 300 watts Peak Each, 50 watts RMS Each
• 1" Polyetherimide Balanced Dome tweeters
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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List price $119.00
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Jensen JS65T

500W Peak (100W RMS) 6.5" Triaxial Series 3 Way Coaxial 4-ohm Speakers

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Jensen JS65T

500W Peak (100W RMS) 6.5" Triaxial Series 3 Way Coaxial 4-ohm Speakers

• 250 watts Peak Each, 50 watts RMS Each
• 3/4" Piezo Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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$69.99 /pair

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Kicker PSC652 (51PSC652)

240W Peak (120W RMS) 6.5" PS Series 2 Way Coaxial 2-ohm Marine and Powersports Speakers

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Kicker PSC652 (51PSC652)

240W Peak (120W RMS) 6.5" PS Series 2 Way Coaxial 2-ohm Marine and Powersports Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 92.5 dB

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List price $219.99
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Alpine BRV-S65

300W Peak (100W RMS) 6.5" BassRev Series 4-ohm 2-Way Coaxial Speaker Set

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Alpine BRV-S65

300W Peak (100W RMS) 6.5" BassRev Series 4-ohm 2-Way Coaxial Speaker Set

• 150 watts Peak Each, 50 watts RMS Each
• 1" Polyester cloth Dome Tweeters
• Polypropylene-Mica cone material
• BassRev tuning via Alpine OPTIM8
• Impedance: 4 ohm
• Sensitivity: 84 dB

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List price $360.00
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Boss Elite BE652C

100W RMS 6.5" Elite Series 2-Way Coaxial 4-ohm Shallow Car Speakers

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Boss Elite BE652C

100W RMS 6.5" Elite Series 2-Way Coaxial 4-ohm Shallow Car Speakers

• 50 watts RMS Each
• 1.1" Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Cerwin-Vega H652

540W Peak (180W RMS) 6.5" HED Series 2 Way Coaxial 4-ohm Speakers

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Cerwin-Vega H652

540W Peak (180W RMS) 6.5" HED Series 2 Way Coaxial 4-ohm Speakers

• 360 watts Peak Each, 120 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $119.99
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MTX TERMINATOR6

180W Peak (90W RMS) 6.5" Terminator Series 2 Way Coaxial 4-ohm Speakers

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MTX TERMINATOR6

180W Peak (90W RMS) 6.5" Terminator Series 2 Way Coaxial 4-ohm Speakers

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.8 dB

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List price $69.95
-14% $59.95 /pair

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JBL Stage1 621 (STAGE1621)

350W Peak (70W RMS) 6.5" Stage1 Series 2 Way Coaxial 4-ohm Speakers

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JBL Stage1 621 (STAGE1621)

350W Peak (70W RMS) 6.5" Stage1 Series 2 Way Coaxial 4-ohm Speakers

• 175 watts Peak Each, 35 watts RMS Each
• Mylar Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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List price $99.99
-50% $49.95 /pair

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Massive Audio FC6X

300W Peak (150W RMS) 6.5" FC Series Coaxial 4-ohm Speakers

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Massive Audio FC6X

300W Peak (150W RMS) 6.5" FC Series Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 13/16" Silk Dome Tweeters
• Fiber Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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List price $234.99
-64% $84.99 /pair

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Massive Audio GT6SP

400W Peak (100W RMS) 6.5" GT Series 2 Way Coaxial 4-ohm Shallow Mount Speakers

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Massive Audio GT6SP

400W Peak (100W RMS) 6.5" GT Series 2 Way Coaxial 4-ohm Shallow Mount Speakers

• 200 watts Peak Each, 50 watts RMS Each
• Dome Tweeters
• Hardened Paper cone material
• Impedance: 4 ohm
• Sensitivity: 98 dB

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$129.98 /pair

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Massive Audio MX65S

440W Peak (100W RMS) 6.5" MX Series 2-Way 4-ohm Shallow-Mount Coaxial Car Speakers

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Massive Audio MX65S

440W Peak (100W RMS) 6.5" MX Series 2-Way 4-ohm Shallow-Mount Coaxial Car Speakers

• 220 watts Peak Each, 50 watts RMS Each
• 1/2" PEI (Polyetherimide) Hard Dome tweeters
• Tweeters constructed with ferro fluid cooled voice coil
• Laminate-Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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List price $65.99
-20% $52.49 /pair

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MB Quart DK2-116

240W Peak (120W RMS) 6.5" Discus Series 2-way 4-ohm Coaxial Car Speakers

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MB Quart DK2-116

240W Peak (120W RMS) 6.5" Discus Series 2-way 4-ohm Coaxial Car Speakers

• 120 watts Peak Each, 60 watts RMS Each
• Aluminum Inverted Dome tweeters
• Lightweight Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $89.99
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Diamond Audio DMD653

200W Peak (100W RMS) 6.5" DMD Series 3-way Coaxial Car Speakers

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Diamond Audio DMD653

200W Peak (100W RMS) 6.5" DMD Series 3-way Coaxial Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• 0.79" Silk Dome tweeters
• Polypropylene cone material with reinforced stamped pattern
• Impedance: 4 ohm
• Sensitivity: 87 dB

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List price $149.99
-5% $142.99 /pair

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Deaf Bonce Machete MFX-60

200W Peak (100W RMS) 6.5" Machete Series 2 Way Coaxial 4-ohm Speakers

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Deaf Bonce Machete MFX-60

200W Peak (100W RMS) 6.5" Machete Series 2 Way Coaxial 4-ohm Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Paper Fiber with Mica Coating cone material
• Impedance: 4 ohm
• Sensitivity: 91.6 dB

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$49.90 /pair

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Memphis MS62V

300W Peak (150W RMS) 6.5" M Series 2-way 4-ohm Convertible Coaxial Car Speakers

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Memphis MS62V

300W Peak (150W RMS) 6.5" M Series 2-way 4-ohm Convertible Coaxial Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• Aluminum Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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List price $259.95
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    FAQ Frequently asked questions in 6.5" Speakers

    6.5" Speakers Frequently Asked Questions (FAQ)
    6.5" speakers are one of the most popular speaker sizes used in car audio systems. The primary difference between 6.5" speakers and other sizes, such as 6x9 or 5.25"", is the cone diameter. The 6.5" size strikes a balance between larger speakers, which may provide more bass but can be challenging to install in certain vehicles, and smaller speakers, which may lack low-end frequencies. The 6.5" size is versatile and can fit in most standard speaker locations, making them a popular choice for car owners looking to upgrade their audio system without extensive modifications.
    6.5" speakers offer several advantages that make them an attractive choice for car audio upgrades. Firstly, they generally provide a better sound quality compared to stock factory speakers, enhancing the overall listening experience. They offer a more extended frequency range, allowing for clearer highs and more defined lows. Additionally, 6.5" speakers often come with improved materials and design, resulting in better durability and longer-lasting performance. They are also relatively easy to install, making them a practical choice for DIY enthusiasts.
    To determine if 6.5" speakers are compatible with your car, you need to check the speaker size of your vehicle's factory speakers. You can do this by measuring the diameter of the current speakers or consulting your car's user manual for the specifications. Alternatively, you can use an online car speaker fitment tool or contact the manufacturer to confirm the compatibility. If your car's stock speakers are also 6.5"", it's a straightforward drop-in replacement. If they are a different size, you may need mounting adapters or brackets to fit the new 6.5" speakers.
    Yes, 6.5" speakers are versatile and well-suited for various music genres. Their balanced sound reproduction allows them to handle both high and low frequencies effectively. Whether you enjoy bass-heavy hip-hop tracks, the intricate instrumentals of classical music, or the crisp vocals of pop songs, 6.5" speakers can deliver a pleasing audio experience. However, the overall sound quality also depends on the speaker's construction, materials used, and power handling capabilities. It's essential to choose speakers that match your musical preferences and offer the desired audio characteristics.
    The installation process of 6.5" speakers will vary depending on your car's make and model. However, the general steps involve removing the door panels or speaker grilles, disconnecting the factory speakers, and connecting the new 6.5" speakers using the provided wiring harness or adapters. It's crucial to follow the manufacturer's instructions and use the correct tools to avoid damaging your car's interior or the speakers themselves. If you are not confident in your DIY skills, it's recommended to seek professional installation services to ensure a proper and secure fit.
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