Cerwin Vega SM8 Full Range Speaker (Pair)

$399.99 $299.99

American Hard Bag now offers easy financing through Snap! Finance.

Fast & Easy  No Credit Needed  100-Day Cash Pay Off 

We Build Full Systems!
There are many more speakers, amplifiers, and kits to choose from than what you see here.

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Don't Miss Out!

These woofers are the best performing woofer for saddlebags. We are big believers in this particular product. These speakers do not look like traditional high power speakers due to the unique design, but are the very best speaker for the job. A traditional woofer with a heavy iron magnet and a heavy moving mass (cone) just does not perform well in a saddlebag. These woofers are extremely efficient due to their low moving mass and neo magnets that are actually quite a bit more powerful than a traditional iron magnet. 

Want Bass?

The Cerwin Stroker SM8 has much more ruthlessly hard hitting bass than any other woofer including 10" subwoofers. And you can hear them at 80!

At American Hard Bag we have made a science out of getting big sound out of saddlebags. We are responsible for more thunderous, loud, hard hitting bikes than anyone. The key to getting loud bass that you can hear while you ride is to design the woofer system so that it plays at extreme volume levels down to 50 hz and then filter all bass below that frequency. 

Loud Highs

Not just a woofer. This is a full range speaker with an extremely wide dispersion. The mid and high frequency response of these woofers is purposely disproportionate. These speakers play louder as frequency rises. This makes it a perfect solution for saddlebags. Even pointing in at the wheel, these speakers sound crisp, loud, and crystal clear. This all adds a lot to the overall volume level and clarity of the entire sound system.   


  • 8” 3-Way Speaker System (Pair)
  • 500W MAX / 100W RMS Power Handling
  • Integrated RGB-LED Lighting
  • 25mm Titanium Dome Tweeter
  • IP65 Marine Grade Compliant Speciications, 100% UV Stable
  • Ultra-Small Neodymium Motor Structure With Max Xmax Suspension Design Ideal For Motorcycle Fairings
  • Radial Zip Ring (RZR) Cone For Expanded High Frequency Reproduction
  • High Temp Injection Molded Composite Basket With Proprietary Wire Management System
  • Thermal Molded, UV-Coated, Patent Pending Waterproof Composite Paper Cone
  • RPM-RGBLC Multi-Function RGB LED Lighting Remote Control Available
  • Black Grills Included (White Optional)


  • 8” 3-Way 25mm Titanium Dome Tweeter Speaker
  • 500W MAX / 100W RMS Power Handling
  • Mounting Diameter: 7.0” / 178mm
  • Mounting Depth: 3.03“ / 77mm


The SM8 speakers are a perfect addition to our Aggressor or Phase One series saddlebag woofer mounts. These speakers also work well as lid speakers though you should make sure that they will fit your lids before purchasing.

  • The outside diameter of the speaker without the grill is 211.5 mm
  • Outside dimension with the grill is 218 mm


Shipping This Item Ships to The United States 

There are many more speakers, amplifiers, and kits to choose from than what you see here.

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Please allow 10 business days for your order to arrive if it is an item that is built to order. Items that are not built to order (e.g. amplifiers, speakers, .etc) typically ship the next business day.We process and build orders in the order that we receive them. This allows our experts to go over every order and check that your particular order is correct for your particular bike. This means sometimes you have to wait a little longer to get your order but it's always worth it!

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap! You can find our refund policy here.

Here are 5 great reasons to buy from us:



Easy Returns

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap! You can find our refund policy here.



Your part is guaranteed to fit. We test fit every part we sell on actual bikes in order to verify fitment on each model, generation, and in each possible location. You can be sure that if we have stated that a part fits your bike, that it will, or your money back. You will find model, year, and location fitment details on most product pages.

Secure Ordering


Ordering from American Hard Bag is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either.



We Thoroughly Test Every Part We Sell on a Real Bike. There are a lot of parts out there that we refuse to sell. If it’s not up to our high standards, it never makes it to this website. We have parts that fit various budgets and levels of insanity, but all parts we carry are exceptional performers.



Because We Are Fully Authorized Retailers for All Brands We Sell, Manufacturers Warranties Are 100% Valid. There are only a select few authorized online retailers for the brands that we sell. Most all online retailers (even the really big ones) are not authorized at all! And the manufacturer's warranty is void before you even get your items.

American Hard Bag now offers Financing to help you with your Harley Audio Installation Project!


American Hard Bag has teamed up with Snap Financing to offer our customers a 100 day same as cash financing option. We have found this to be a great program. We advise you to pay off your purchase within 100 days to take advantage of $0 in fees. We cover the financing fee as long as you pay your purchase off within the 100 days. After that point fees will apply. There is a minimum requirement to take advantage of zero fees (see below).  

Fast & Easy  No Credit Needed  100-Day Cash Pay Off

Bad Credit, No Credit, OK!

We don’t pull credit from the main credit bureaus (CRAs)- because that actually can hurt your credit! And our finance experts are here to help. What does that mean to you? Even with a low credit score, you have a great chance of being approved with Snap! Don’t let no or bad credit stand in your way anymore.

Financing in a Snap!
Up to 80% Approval Rate

Snap Finance provides easy financing for people with bad credit. Even if you have no credit, Snap is a great way to finance the things you need. It’s not a traditional loan, but a consumer lease that spreads out your purchase over 100 days.

Finance up to $3000 Today,
And Shop Right Away

Not only do we offer high approval rates, we offer high approval amounts as well. So if you have a job and good banking history, apply today to see how much you qualify to receive. Once approved we’ll set up easy automatic payments which makes owning the new audio system for your Harley or upgrading your existing system a breeze. Don’t let your credit history stand in the way. 

All you need to begin a new application is:

  • Be at least 18 years old
  • Have a steady job with reliable income
  • Have an active checking account

$450 is the minimum amount that can be financed. 

You can get approved for up to $3,000 so you don’t have to worry and you can improve your credit at the same time.

Got Questions?

Call American Hard Bag today and we can help to see if Snap! Finance is right for you!

1(916) 295-3959