6.5 speakers: The Best 6.5-Inch Speakers for 2023

The Best 6.5-Inch Speakers for 2023

If you spend lots of time in your car, a good set of speakers is a worthwhile investment. A great-sounding car stereo system makes a long commute, or a drive across the country, a more enjoyable experience. 

The best place to start is by replacing your stock speakers. Most standard car speakers are about 6.5 inches in diameter, so finding a good set of speakers in that size range means you can install a replacement set with minimal modifications. There are lots of choices in this size to fit every need or budget. Additionally, some of these speakers are good options if you’re looking to upgrade the sound on your boat or motorcycle. 

In this review, we’ll cover the best 6.5-inch speakers, including our recommendations for best value, best sound quality, and other categories. 

Best Overall: Rockford Fosgate R165X3
Best for Sound Quality: Hertz HCX 165
Best Value: JBL CLUB6520
Best Factory-Replacement: Infinity REF6522IX
Best All-Weather: Polk DB652
Best for Bass: Alpine R-Series R-S65

How We Picked the Best 6. 5 Speakers

One of my first cars was a 1982 Toyota Celica with a factory OEM seven-band equalizer and blown speakers. Upgrading to four new Polk 6.5-inch speakers improved the sound quality dramatically. Since then I’ve always believed a good set of speakers is the best way to upgrade your car’s sound quality. 

To compile this list, I looked at 10 to 15 brands of 6.5-inch speakers and reviewed them based on sound quality, build quality, power, and price. I also looked at speakers that provided a good upgrade over the factory OEM speakers and sounded good with or without added amplification. Whether you just want to upgrade the sound in your factory stereo or plan to upgrade it in the future, it’s always better to go with the best 6.5-inch speakers that can handle either. 

You’re not going to get a lot of bass out of a 6.5-inch speaker, so it’s better to look for clarity in the mid- and high-frequency ranges. If you want low-end bass, the best solution is to add a subwoofer and avoid overpowering your 6. 5-inch speakers. 

Finally, price is always a consideration, and there are always trade-offs. But upgrading your 6.5-inch speakers is one of the most cost-effective ways of upgrading the sound of your car stereo. And you can’t go wrong with any of these picks. 

The Best 6.5 Speakers: Reviews and Recommendations

Best Overall: Rockford Fosgate R165X3

All-Around Winner. Rockford Fosgate

Why They Made The Cut: The Rockford Fosgate R165X3 speakers combine great sound quality for factory and aftermarket stereos at a great price, which makes it the top pick.

Type: Three-way coaxial
Frequency Response: 52Hz (hertz)–20kHz
Power: 45 watts RMS / 90 watts peak

— Great sound across all frequencies
— Ideal for factory and aftermarket stereos
— Easy to install
— Durable and well-built 

— May require an amplifier for best sound quality 

The Rockford Fosgate R165X3 speakers are the top choice if you’re looking for a great set of speakers for a wide variety of factory and aftermarket applications. The three-way coaxial stereo speakers can handle 45 watts of RMS power or 90 watts of peak power. They provide great quality sound, are well-built, and are easy to install. 

Each speaker has a tiny half-inch silk dome piezoelectric tweeter, providing responsive high-frequency audio. The three-way coaxial configuration offers a better range and more natural sound quality. 

The only downside is these speakers might not provide the best sound quality when paired with a low-powered factory head unit. To get the best sound, you’ll want a head unit or amplifier that provides close to the 45-watt power rating of these speakers. 

There are better-quality speakers out there that cost more money, but the Rockford Fosgate R165X3 speakers provide the best combination of sound quality, durability, and price. 

Best for Sound Quality: Hertz HCX 165

Strong Sound. HERTZ

Why They Made The Cut: For the best 6.5-inch speakers with amazing sound quality, choose the Hertz HCX 165.  

Type: Three-way coaxial
Frequency Response: 50Hz–22kHz
Power: 100 watts RMS / 200 watts peak

— Crisp sound across all frequencies
— Clear, strong sound for low frequencies
— Bright, clear sound for high frequencies
— Tweeters can be turned and adjusted 

— Expensive
— Do not come with grilles or covers

Hertz offers some of the best-quality speakers you can buy, and the HCX165 speakers are no exception. They provide amazingly clear, high-quality sound thanks to their oversize magnets and pure copper voice coils. The cones are well-engineered to provide exceptional, long-lasting performance. 

The HCX165 speakers handle an impressive 100 watts RMS and 200 watts of peak power to generate loud, clear sound. The tweeters feature a rotary function that allows you to adjust their direction, customizing the sound to your preferences. 

Price is the only major drawback, but in this case, you get what you pay for. The only other concern I have is the lack of a grille or speaker cover for protection. You can fit these speakers behind a factory speaker cover or find an aftermarket one, but that hides the cool rotating-tweeter function. 

You can spend less money and get speakers that are almost as good, but when it comes to high-powered, high-fidelity audio, nothing else sounds as good in a 6.5-inch package.

Best Value: JBL CLUB6520 

Excellent Value. JBL

Why They Made The Cut: The JBL CLUB6520 speakers offer the best combination of low price and good sound quality. 

Type: Two-way coaxial
Frequency Response: 50Hz–20kHz
Power: 50 watts RMS / 150 watts peak

— Good sound quality
— Great price
— Easy to install 

— Lacks low-end bass response
— Mounting hardware isn’t the best quality 

The JBL CLUB6520 speakers are a great value option. They provide better sound quality than factory speakers and are easy to install. These durable two-way coaxial speakers are made with UV-resistant polypropylene and will handle years of use. The 50 watts of RMS power and 150 watts of peak power allow them to provide clear treble and midrange sound at high volumes. 

The only drawbacks are due to the low price. The two-way coaxial speakers lack a low-end bass response, which can be resolved by adding a subwoofer. There have also been complaints about the quality of the mounting hardware, especially the screws. 

But if you’re looking for improved sound quality for a reasonable price, the JBL CLUB6520 speakers are a great choice. 

Best Factory-Replacement: Infinity REF6522IX

Well-Built. Infinity

Why It Made The Cut: If you’re looking to upgrade your factory speakers, the Infinity REF6522IX speakers are the top pick. 

Type: Two-way coaxial
Frequency Response: 53Hz–21kHz
Power: 60 watts RMS / 180 watts peak

— Great-sounding speakers with excellent mid- and high range
— Excellent build quality
— Universal mounting brackets
— Sound great with a factory OEM head unit and no additional amp

— Short wiring connectors
— Lacks low-end bass response 

If you’re looking to replace your factory OEM speakers, the Infinity REF-6522IX speakers are a great option. The full-range coaxial drivers include oversize woofer cones that deliver high bass output. One-inch dome tweeters provide clear highs and include an adjustable tweeter output level. The speakers offer 60 watts RMS and 180 watts peak and provide loud, clear midrange sound when connected to a factory head unit or amplifier. 

The only drawback is a lack of low-end bass response, especially when using these speakers with unamplified factory OEM head units. Additionally, the wiring connectors are short, making it difficult to hook the speakers up. However, the speakers do come with two different mounting brackets, making them easy to install.  

Drawbacks aside, the Infinity REF-6522IX speakers are one of the best ways to upgrade the sound of your factory head unit with or without added amplification.

Best All-Weather: Polk DB652

Loud and Clear. Polk Audio

Why It Made The Cut: The Polk DB652 speakers provide great sound and are built to handle all weather conditions.  

Type: Two-way coaxial
Frequency Response: 40Hz–22kHz
Power: 100 watts RMS / 300 watts peak

— Marine-rated waterproof
— Well-built to handle all weather
— Clear and loud, with great sound quality

— Lacks low-end bass response 

If you need an all-weather speaker for your motorcycle, ATV, boat, or other watercraft, the Polk DB652 speakers are a dependable option. Marine certified, these speakers are made to withstand the toughest weather conditions. 

They sound great as well. With a frequency response of 40 hertz to 22 kilohertz, these speakers are loud and clear with a clean sound across a wide frequency spectrum. With 150 watts RMS power and 300 watts peak power, they also complement amplified systems and subwoofers. 

Like most two-way coaxial speakers, the Polk DB652 speakers lack low-end bass response. But if you want the best speakers for the elements, look no further.

Best for Bass: Alpine R-Series R-S65

Power Player. Alpine

Why It Made The Cut: Alpine’s R-Series R-S65 speakers provide the best low-end bass with great overall sound quality for 6.5-inch speakers. 

Type: Two-way coaxial
Frequency Response: 65Hz–29kHz
Power: 100 watts RMS / 300 watts peak

— Great bass sound
— Excellent overall sound quality
— Work great with amplified stereo systems

— On the expensive side

Most speakers on this list lack good low-end bass response — but not the Alpine R-Series. They provide premium sound quality with excellent low-end bass response. 

They are also a good choice for amplified systems. With 100 watts of RMS power and 300 watts of peak power, they can handle lots of power. One-inch tweeters provide clear highs, while the woofers and rubber surrounds deliver bass with minimal distortion. 

The price is on the expensive side, as there are lower-priced options that deliver as good or better high- and mid-range sound. But if you want bass from a 6.5-inch speaker, this is where it’s at. 

Things to Consider Before Buying The Best 6.5-Inch Speakers

Choosing the best set of 6.5-inch speakers starts with your budget, as well as the following three things: 


Measured in watts, power determines volume. But there’s more to it than just picking out the most powerful speakers. In addition to evaluating root mean square (RMS) vs. peak power for the speakers, you’ll need to consider how much power your stereo cranks out. 

If you’re building a new stereo system with amplifiers and subwoofers, it makes sense to go with the best quality, most powerful speakers you can afford. However, if you’re keeping your factory head unit, you’ll want to buy speakers that are matched to your existing stereo’s output. 

Sound Quality

Sound quality is subjective and different for everybody, and a lot of it comes down to personal preference. That said, sound quality also depends on the type of speaker and how it handles different ranges of sound frequency.  

Coaxial speakers are full-range speakers that combine the speaker with a woofer and tweeter in one design. Most 6.5-inch speakers are either two-way speakers, meaning they have a woofer and tweeter, or three-way speakers with a separate woofer, tweeter, and midrange component. These types of speakers are the most common. They offer good midrange sound and are easier to install. 

Component speakers separate out the woofers and tweeters from the midrange speaker, providing better high- and low-range sound than coaxial speakers. These types of speakers have better sound quality but are more expensive and harder to install. 


Build quality and durability determine not only the sound quality but how long your speakers will provide good-quality sound. Door-mounted speakers live a hard life, getting rattled every time you shut the door and exposed to extreme temperatures. So while it’s tempting to get cheaper speakers, you may save money in the long run by buying more durable speakers, which last longer.  

Related: Best Speaker Wires


Q: How do I get more bass out of my 6.5 speakers?

The best way to add bass is with a subwoofer, or to upgrade your speakers. However, if you’re looking for more bass from your 6.5-inch speakers alone, you can do the following:

— Adjust your stereo’s equalizer to provide more low-end sound
— Add sound deadening around the speaker
— Isolate the speaker with a rubber gasket

Q: Are 6 and 6.5 speakers the same? 

The only difference is size — the 6 speakers are six inches in diameter, and the 6.5 speakers are 6.5 inches in diameter. Both sizes are comparable in sound, but one size may be a better fit for your vehicle. 

Q: What size speakers are best?

The best size depends on how large of a speaker you can fit. The most popular are 6.5-inch and 6×9-inch speakers. They provide good sound, high- and midrange sound quality, and even some decent bass. Typically 6.5-inch speakers are the best option for door installation, and 6×9-inch speakers are a good option for the back seat. 

Q: Can you make cheap speakers sound better? 

There are a few things you can do to improve the sound quality of cheap speakers:

— Select a prime location: good placement improves sound quality
— Add an equalizer or inline capacitor to reduce the frequency spectrum that sounds bad
— Add an amplifier that matches your speakers’ RMS output

Q: What should the midrange be set to in a car? 

It depends on what you’re listening to and your preference. Most people think music sounds better with the midrange set to 0 and the bass and treble set to +4 and +5. 

Q: How big of a hole do I need for a 6.5 speaker? 

Most 6.5-inch round speakers have a 5-inch hole opening. If you are installing new 6.5-inch speakers to replace old 6.5-inch speakers, they should fit the same hole. If you need to cut a hole to install new speakers, you’ll want to use a 5-inch hole saw.  

Q: What are 6.5 speakers good for? 

These speakers provide good high- and midrange sound. They fit most car doors and are an ideal complement to 6×9-inch speakers or a subwoofer. 

Final Thoughts on the Best 6.5 Speakers

Best Overall: Rockford Fosgate R165X3
Best for Sound Quality: Hertz HCX 165
Best Value: JBL CLUB6520
Best Factory-Replacement: Infinity REF6522IX
Best All-Weather: Polk DB652
Best for Bass: Alpine R-Series R-S65

The Rockford Fosgate R165X3 speakers are the best overall pick, offering great sound quality at a reasonable price. For the ultimate sound, the Hertz HCX 165 can’t be beaten. Check out the JBL CLUB6520 or Infinity REF6522IX if you want a great speaker to work with your factory OEM head unit. And if you need something to brave the elements, you can’t go wrong with the Polk DB652. 

Why Trust Us

Let’s get one thing out of the way: Online shopping is hard. Search for any product and you’ll be confronted with dozens (if not hundreds or thousands) of choices. Our mission at Futurism, where we cover the latest technology, is to simplify this experience by researching, testing, and continuing to evaluate products so we only recommend choices that are actually worth your time.

This post was created by a non-news editorial team at Recurrent Media, Futurism’s owner. Futurism may receive a portion of sales on products linked within this post.

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Power 6.5″ 2-Way Euro Fit Full Range Speaker

The Power T1650 is a T1 full-range speaker system with a coaxially mounted tweeter and a true 6.5″ midrange optimized for a wide variety of U.S., European, and import vehicles.

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Get Power series sound quality in a drop-in speaker. These 6.5” 2-way full-range speakers inherent all the coolest features from – their big brother – the T1 component systems. Features include a bridge-mounted tweeter and are optimized for a wide variety of U.S., European, and import vehicles. Be prepared, these are more than OEM replacement speakers, their sound quality has been perfected for true Rockford Fosgate fanatics!


  • Injection molded carbon fiber filled polypropylene cone
  • 1″ treated aluminum dome tweeter
  • VAST vertical attach surround technique increases effective radiating cone area up to 25%
  • Santoprene rubber surround
  • High temp aluminum voice coil
  • Linear high excursion matched motor magnetics and suspension design
  • Stamp-cast aluminum frame
  • Fatigue and tear resistant poly cotton spider
  • FlexFit 2 mounting
  • Integrated concealed 12dB/Octave crossover components
  • Grilles and mounting hardware included
  • 1 Year Warranty



This means your speaker has the capacity to handle power under continuous demand, not instantaneous power handling, that over time, can damage voice coils.”>Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards.

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Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards.

Klippel Verified

“>Klippel is a speaker certification program allowing us to deliver the best possible speakers.

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Klippel Verified

Klippel is a speaker certification program allowing us to deliver the best possible speakers.

ICC Crossover

The Integrated Concealed Crossover hides the crossover inside the basket, creating a cleaner look and easier …

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ICC Crossover

The Integrated Concealed Crossover hides the crossover inside the basket, creating a cleaner look and easier installation.

VAST Surround (speakers)

The Vertical Attach Surround Technique significantly increases a subwoofer’s effective radiating cone area up to 25%.

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VAST Surround (speakers)

This design alters the typical design and manufacturing technique by eliminating the large flat glue surface area (the landing), which allows the surround to be shifted for increased cone area. In turn, both nominal efficiency and maximum output capabilities are dramatically improved. <br><br>The new patent-pending VAST™ technique is a result of combining a unique design concept with precise manufacturing to provide up to 25% more effective radiating cone area.<br>”>The Vertical Attach Surround Technique significantly increases a subwoofer’s effective radiating cone area up to 25%.

FlexFit 2 Basket – Speaker

The slot mounted frame pattern allows for variable adjustments to the mounting position, especially for Euro-Fit …

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FlexFit 2 Basket – Speaker

This allows slight adjustment of the speaker when mounted.”>The slot mounted frame pattern allows for variable adjustments to the mounting position, especially for Euro-Fit installations.


Nominal Impedance (Ohms)


Speaker Type

2-Way Coax

Power Handling (RMS)

75 Watts RMS
150 Watts Max

Tweeter Mounting Depth


Shipping Weight

(dB @ 1W/1M)


Grille/Trim Ring Included



Built-in tweeter crossover
High-Pass (HP): 12dB/octave Butterworth

Midrange Mounting Depth


Mounting Hardware


Midrange Size
(Nominal Diameter)


Tweeter Size
(Nominal Diameter)


Frequency Response (Hz)

44Hz – 20kHz

CEA-2031 Compliant



Knowledge Base Articles

  • 2015 Power Full Range Speakers – owner’s manual

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Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.

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Prior to requesting an RA, try to diagnose the failure. Many products we receive are sent back with No Trouble Found, usually due to incorrect installation. Use our RFTECH:Knowledge Base for troubleshooting assistance.

Contact Customer Support

Please call us during normal business hours at 1-800-669-9899 (option #1) and be prepared with the following information:

  • First and Last Name with complete Shipping Address
  • Product Name (T0D415)
  • Serial Number (12 or 13 digit number)
  • Failure Diagnosis (no output, no power LED, etc.)
  • Scanned copy of Original Receipt emailed to [email protected] (dealer name, purchase date, and item purchased must be legible)
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When shipping your product, your package MUST have the following information:

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Ship your product (UPS or FedEx preferred) to the following:

Rockford/ AJR International
300 Regency DR
Glendale Heights, IL 60139


16 AWG Speaker Wire Packaged 30 Foot Frosted Black/Silver


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Dimensions of car speakers in inches and cm, popular standard sizes

When choosing a speaker system, you may encounter the fact that a device from the same series has a different design and dimensions. Which system to choose, and what selection criteria should be followed? What is more important: the size of autoacoustics or its design (visual) appearance and compliance with the regular installation site?

Speaker dimensions in inches, centimeters and millimeters

10cm or 4″

It’s quite common to see advertisements for small 10cm (4″) speakers. But what are their characteristics, sound quality and what do they generally look like? This type has very low sound quality, In this regard, when buying a speaker with a diagonal of 10 cm, it is advisable to equip the speaker system with additional bass support.This can be standard mid-bass speakers, which are best installed in front of the cabin.0003

The naturally small speaker is significantly cheaper than other car speakers. But to build high-quality sound in a car, saving is not justified, because buying additional midbass, the total cost of the audio system will be significantly higher than buying full-fledged speakers with a diagonal of 16.5 cm. An ordinary three-component acoustics with a built-in specialized midrange can become an analogue of the “10 cm speaker + midbass” combination. . Such a speaker is compact, easy to install in the rear of the car. Similar in appearance, with the same cost, and even from the same series, they can radically differ in the reproduction of mid frequencies. This is due to different electroacoustic characteristics.

Manufacturers often “emphasize” in their marketing pitches a series of improved small speakers that can deliver deep bass. At the same time, other characteristics worsen: a “dry” timbre appears, the tonal balance is disturbed, the clarity of the midbass transmission “suffers”.

The advantage of small speakers is the location of regular places under them (at the corners of the front panel), which is good for sounding. Such an installation guarantees a significant increase in bass output. The reason for this is the close position of the windshield, which increases the bass by 3 dB (similar to doubling the power input) due to the reflective effect. Despite all the “tricks” of the installation, this does not provide full depth of sound.

13 cm or 5.25″

The 13 cm (5.25″) speakers are ideal for front speakers as a rear mic. In case of limited space in the cabin, 13 cm speakers can also be used as front speakers. Installers do not advise resorting to

16 cm or 6.5″

For front-facing speakers, a 16.5 cm (6.5″) speaker is best. This size will give you the opportunity to get good sound quality, bass. In most cases, it fits easily in the car, but there are exceptions when the mounting space is smaller. This problem is easily solved, just contact a specialized installation center. A problem with installation may arise if it is impossible to enlarge the regular place due to the peculiarities of the car interior or the absence of alternative places for installation.

An important feature that is often neglected is the significant differences between models from the same series. First of all, these are models with improved technical characteristics. In this case, as a rule, the price does not differ significantly from the “regular” model. A striking example of such improvements is Hertz acoustics, which improves its models and introduces them to the market with different indices: Hertz DCX 165. 2, Hertz DCX 165.3.

20 cm or 8″

Another type of speaker – enlarged 20 cm (8″). Ideal for three-component car speakers. They play the role of a specialized mid-range link. This is due to their huge size. But just because of the large size of the landing They are difficult to install in the front door of a car.Sometimes they are also installed in two-piece systems.The sound of the midrange frequencies is very mediocre.It is best to use 20 cm drivers in speakers without a subwoofer, which allows you to get good bass.At the moment, practically not used in practice and actually superseded by speakers with improved bass reproduction capabilities with a diameter of 6.5-7 inches.0003

13 x 18 cm or 5 x 7″

13 x 18 cm (5 x 7″) oval speakers can be used to replace the factory speakers when the installation space cannot be modified.

15 x 23 cm or 6 x 9″

Oval speakers in coaxial systems are intended for installation in the rear shelf. Their standard size is 15×23 cm (6×9 inches). Visually, it is much larger than round 6.5 inch ones. This allows you to get a more voluminous bass. The disadvantages of ovals are: poor mechanical balance of the diffuser, the inability to replace the subwoofer, the quality of the coaxial performance. Such a speaker does not make it possible to obtain a full-fledged, high-quality, deep, clear bass and balanced tonal sound.

For those who appreciate the appearance of elliptical speakers, there are models with improved sound quality. The problem is that the choice of such models is quite limited. The best representatives of ovals can be considered Hertz Uno X 690, Focal Access 690 CA1 SG, Alpine S-S69C.


Summing up, it should be said that depends on the size of the speaker in direct proportion to the nature of the sound, bass depth and clarity of reproduction . When choosing speakers to build your own speaker system in a car, decide for yourself first of all: what are you willing to sacrifice (money, space in the cabin or the quality of the sound output). Adjusting to the concept of “the main thing is that the suit sits” and, being guided by only the allowable installation space and visual effect without using possible additional options (increasing the installation space, buying additional components), you deprive yourself of an impeccable sound picture.

Thoughtful decisions for you and getting exactly the result from the purchase and installation that you expect!!!

Acoustics for those who do not waste money

Acoustics for those who do not waste money

Overview of acoustic systems Magnum MBS -6.5 C

Good acoustics may be available. This statement completely proves model Magnum MBS-6.5 C. High sensitivity allows these speakers to work great when connected directly to the head unit, and at the same time they are able to surprise with their bass abilities. Let’s consider them in more detail.

The kit, as usual, includes mid-bass speakers, tweeters and crossovers made in separate cases.

The mid-woofer top mounts are made of bright red foamed urethane, giving them a bold and aggressive look.

The Magnum MBS-6.5C comes with protective grills – standard high-quality meshes that allow you to harmoniously fit the bright red elements of the speakers into the strict design of the car interior.

Diffusers are made of cellulose and coated on the front side with a polymer composition that performs a dual function – additional protection against moisture and damping. The latter is the deliverance of the diffuser from its own overtones of the material during the operation of the speaker, caused by mechanical stresses propagating from the center to the edges. They are effectively extinguished by the very layered structure of the material.

On the reverse side, the diffuser has a more familiar “cellulose” texture. The composition of the composite includes additives that give it moisture-proof properties, which is especially important when installing speakers in the door.

The magnet system is quite large by the standards of 6.5-inch speakers, but the speaker’s mounting depth of 69 mm allows you to easily install the Magnum MBS-6.5C in almost any car.

The 1″ voice coil is a popular solution for loudspeakers. High sensitivity allows you to connect acoustics to the built-in amplifier of the radio, but all its capabilities are revealed when connected to a full-fledged car amplifier – the sound will be more powerful, but at the same time light, clear and detailed.

The Magnum MBS-6.5C uses silk dome tweeters with a diameter of 20 mm. An aperture body is located under the fixed grid in each tweeter. It serves to expand the radiation pattern – improves the sound at high frequencies when the tweeters are set at an angle to the listeners.

Tweeters are designed to fine-tune direction after installation. There can be several options for the installation itself – the kit includes mounting elements for mortise installation and for installation on a plane.

Crossovers are compact and can be placed almost anywhere. For example, under the dashboard (if the tweeters will be installed on the panel or in the racks) or in the doors (if they will be installed in the corners of the mirrors).

To understand the capabilities of the speakers, we first measured their parameters.

Impedance versus frequency for Magnum MBS-6.5C

Red – mid-woofer

Blue – Tweeter

Green – Loudspeaker Assembly


Fs (natural resonant frequency) – 60 Hz

Vas (equivalent volume ) – 12 l

Qms (mechanical quality factor) – 5.39

Qes (electrical quality factor) – 0.85

Qts (full quality factor) – 0.73

Mms (effective mass of the moving system) – 14 g

BL (electromechanical coupling factor) – 5. 4 T m

Re (voice coil DC resistance) – 3.7 ohms

Speakers ideal for door mounting. Sufficiently low resonant frequency and total quality factor slightly above the classical 0.7 allow them to work confidently at the lower end of the range, giving unexpectedly tight and juicy bass. This was confirmed when listening and is clearly seen on the measured frequency response of the mid-bass speaker:

Frequency response of Magnum MBS-6.5C midbass speaker

Red – on axis

Blue – at an angle of 30 degrees

Green – at an angle of 60 degrees

Mi bass speakers installed in doors are usually visible to listeners from significant angles . In this position, a smooth roll-off is provided at the upper end of their frequency operating range, and higher in frequency, they smoothly “pass the baton” to the tweeters.

Frequency response of Magnum MBS-6.5C tweeter connected via crossover

Red – axial

Blue – 30 degrees

Green – 60 degrees

When they are turned, the radiation efficiency drops slightly, which can be additionally used to adjust the sound.

For example, if you install the tweeters so that each of them is directed to the headrest of the adjacent seat or approximately to the center of the opposite side window, then the near one will be visible to the listener at a slightly larger angle, which means it will be heard a little quieter than the far one. Thus, it will be possible to create an optimal volume balance for both the driver and the passenger at the same time. This will be able to form not just a high, but also a relatively uniform sound stage – when the sound will not be “tied” to the near speakers, but will be formed in the space between the left and right speakers.


At a very low price, the Magnum MBS-6.5C allows you to get a very interesting sound in the car – with rich vocals, clear sounds of instruments and, which is also important, unexpectedly rich and weighty bass. It is quite possible that with these acoustics you will save on a subwoofer, and if you want more bass, then you will not be limited in any way when choosing a suitable model.