PRV Audio 6MB300SEAL 6-1/2" Sealed Back Midbass Midrange Woofer 8 Ohm

Brand:| Model: 6MB300SEAL
PRV Audio designed the 6MB300SEAL sealed-back 6-1/2" midbass/midrange woofer offers the same punch as the 6MB200, without the shared enclosure air modulation issues associated with open-back midrange/midbass speakers when installed in cabinets with larger woofers.
  • Great choice for pro audio and car audio systems
  • Strong midbass punch
  • 150W RMS power handling
  • Sealed-back basket eliminates for separate enclosure in 3-way speakers
Part # 
Weight: 4.8 lbs.  
List Price$58.48
You Save33%
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Part # 294-2702
Qty:  EA
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Product Details

PRV Audio 6MB300SEAL 6-1/2" Sealed Back Midbass Midrange Woofer 8 Ohm

A sealed-back basket design on PRV Audio's 6MB300SEAL 6-1/2" midbass/midrange woofer protects it from the air swept by larger drivers in a shared cabinet. This results in decreased driver distortion, increased durability, and increased midbass punch from 250 to 500 Hz and power handling over the open-back 6MB200.

A thick, yet light and rigid paper cone, 1.5" voice coil, durable spider suspension, and a woven surround supported by a sturdy steel basket. All of this ensures its ability to withstand long hours of operation making this driver a popular speaker choice amongst high output car audio enthusiasts, especially when you consider the extra moisture protection offered by the sealed-back design.

Product Specifications
  • Nominal Diameter6-1/2"
  • Power Handling (RMS)150 Watts
  • Power Handling (max)300 Watts
  • Impedance8 ohms
  • Frequency Response310 to 6,000 Hz
  • Sensitivity93 dB 2.83V/1m
  • Voice Coil Diameter1.5"
Thiele-Small Parameters
  • Resonant Frequency (Fs)328.4 Hz
  • DC Resistance (Re)5.9 ohms
  • Mechanical Q (Qms)8.08
  • Electromagnetic Q (Qes)2.46
  • Total Q (Qts)1.89
  • Compliance Equivalent Volume (Vas)0.01 ft.³
  • BL Product (BL)11.27 Tm
  • Diaphragm Mass Inc. Airload (Mms)25.92g
  • Maximum Linear Excursion (Xmax)5 mm
  • Surface Area of Cone (Sd)136.85 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialCloth
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter6.57"
  • Baffle Cutout Diameter5.82"
  • Depth3.26"
  • # Mounting Holes4
PRV Audio 6MB300SEAL 6-1/2" Sealed Back Midbass Midrange Woofer 8 Ohm
  • BrandPRV Audio
  • Model6MB300SEAL
  • Part Number294-2702
  • UPC799928733731
  • Product CategoryWoofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (3 Reviews)
  • Weight4.8 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Similar Products

View similar products to the PRV Audio 6MB300SEAL 6-1/2" Sealed Back Midbass Midrange Woofer 8 Ohm
in the Woofers, Subwoofers & Midrange Speakers product category.


PRV Audio 6MB300SEAL 6-1/2" Sealed Back Midbass Midrange Woofer 8 Ohm
PRV Audio 6MB300SEAL 6-1/2" Sealed Back Midbass Midrange Woofer 8 Ohm is rated 5.0 out of 5 by 3.
Rated 5 out of 5 by from Excellent SoundGreat Price! Fast Shipping! & Great Sound! It's sounds like if I'm in a club! The volume in my car radio goes up to 100 and on 5 it's sounds beautiful...!!! I think I'm going to get me two 10" for my room...lol that's how good the sounds is on these speaker...!! I'm loving it :)))
Date published: 2014-05-15
Rated 5 out of 5 by from Accurate specs; very loud!After testing these midranges, I found that the 1-watt SPL, frequency response, and the RMS wattage rating are all accurate. The sound quality is excellent, even with the most demanding computer-generated music, which is why I'm giving this midrange five stars.The only problem I had was that part of the basket (as seen in the attached photo) was bent when I took it out of the box. I didn't feel like exchanging the driver, so I just used a hammer to straighten it out, which worked out very well.So what is this driver capable of? If you use a first-order high-pass filter at roughly 1000 hertz, then you'll be able to produce sound pressure levels high enough for a high school dance in a full-sized gymnasium, but nothing larger than that.
Date published: 2014-04-11
Rated 5 out of 5 by from Decent sealed midI used these to replace some Dayton RS52AN-8's that met an unfortunate demise as I was putting together my new active crossover setup. Couldn't be happier that I made that mistake now that they're installed. The midrange is much fuller with a good spl match to my other components and I have more flexibility with the crossover points. I'm still waiting on a couple more items and will be measuring response with the new Dayton EMM-6 Mic I picked up recently to EQ the speakers and room with my miniDSP2x8 xo.There weren't many reviews for these speakers when I purchased them but the specs matched my needs quite well and using sealed back units again made the process of replacement easy - not needing to seal off another part of the enclosure for a mid driver of this size. Nice construction and the workmanship seems good.I don't know about the rest of PRV's line but if the specs match your needs I wouldn't hesitate on recommending this one.
Date published: 2013-05-28

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
PRV Audio 6MB300SEAL 6-1/2" Sealed Back Midbass Midrange Woofer 8 Ohm

I am building a three way system using the above driver and a Dayton Audio PA310-8 12" Pro Woofer. I am looking for a recommended cross frequency, this mid can reach low. Can frequencies overlap, what would the effect be?

Asked by:
While the Fs for this driver is around 300 Hz, I would not recommend crossing it any lower than about 500 Hz due to a high Q bump in the low end response which can be seen on the PRV spec sheet. It is common for frequencies to overlap from one driver to another.
Answered by: MattP
Date published: 2014-09-11

I am rebuilding some infinity 3000's, would this make a good mid for home use? I like how the driver is sealed, I won't have to build a mid enclosure in the existing box. What are some considerations when using pro speakers vs. hf? Thanks!

Asked by: Tomane
There aren't any specific considerations to pay attention to when using pro drivers over home drivers. These will work the same way, only provide more output capability. A sealed back midrange like this will have a pretty bit bottom end peak that will need to be taken care of in the crossover, but crossing it a little higher (around say 6-700 Hz) will help with this a lot.
Answered by: MattP
Date published: 2014-09-11

Do you think this would be able to keep up if i installed it in my truck that has an alpine head unit and only 2 alpine co axial door speakers. It needs more mid sound but i dont want to spend 120 on another alpine. Open air under seat mounted??

Asked by: kjt93
Without knowing the sensitivity of the rest of the system it is impossible to say. Chances are this will have more output capability within its usable bandwidth so it should be able to be dialed in, as long as it is used with at least a high pass filter for protection.
Answered by: MattP
Date published: 2014-09-09

Any Car Audio Users?

I would like to hear from anyone using this driver for car audio. How its sounds?
Asked by: Bongi
I cannot vouch for the sound of this driver, however being sealed back means it has a very limited low-end and is not something I would recommend unless you plan on using something else with it to cover about 350 Hz and down.
Answered by: MattP
Date published: 2013-01-25

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