U-HH25 Harley Pro Audio 6x9 Speaker Kit with Hertz ST25K Neo Horns & Hybrid 6x9 for Aftermarket Speaker Lids


Add the Loudest Pro Audio Speaker Combination to Your Aftermarket Speaker Lids


  • Hertz ST25K Neo Horns (pair)
  • Hybrid Technologies 6x9 Woofers (pair)
  • 6x9 Horn Bridge (2)
  • 6x9 Spacers (2)
  • Horn Adapters for Bridge (4)
  • Stainless/Aluminum Hardware
  • Neoprene Gasket

The HH25 Speaker combo (Hertz/Hybrid ST25K) consists of a combination of Hertz ST25K Neo compression horn tweeters and Hybrid Audio Technologies 6x9 woofers. These speakers combine produce more concert level output and thumping bass than any other lid speaker there is. By a lot! 

ST25K Neo

Now Includes the All New Hertz ST25K Neo Compression Horn Tweeters!

These two speakers put together are both the loudest and most bass heavy speaker combination there is. The bass response is deeper than all other 6x9s on the market and they play at extreme volume levels without distortion. These speakers are much louder than even the most aggressive horn/pro audio speaker setups for fairings. This is perfect since the bag speakers need to be quite a bit louder than the front speakers in order to be heard at speed.

Fitment: Most aftermarket 6x9 speaker lids. Not designed for 5x7 or factory speaker lids. You can find those here: 13-HH25 and here: 14-HH25.

This speaker kit is highly recommended for use with our Razor subwoofer systems. These are some of the few lid speakers that have the ability to keep up with the AP8 bag woofers and are a known great match when sharing the bag space as an enclosure. 

The Horns

 The Hertz ST25K Neo horns in this kit are by far the most popular and well respected horns on the market. The Hertz ST25K Neo horns set the standard for high quality. 

Hertz ST25K Neo

The Woofers

The Hybrid Technologies pro audio 6x9 woofers in this kit are nothing like any 6x9 that you have encountered before. These woofers play deep and loud. They accomplish this by using a very unique mechanical design all around. The moving mass (cone and other moving parts) is much lighter weight than most car audio type 6x9s. This combined with the ultra high efficiency 2 ohm voice coil and neodymium magnet makes for a wildly powerful and loud speaker. Additionally the unique mechanical properties of these woofers allows them to make much better use of a saddlebag as a speaker enclosure. Where other 6x9s just flop around in the bag these woofers thrive and belt out huge amounts of great sound.

Hybrid Audio Technologies 6x9 for Harley U-HH25

The Hardware

This kit allows you to bolt the legendary HH25 speaker kit up to most aftermarket 6x9 speaker lids. The U-HH25 kit includes a pair of 3/4" thick 6x9 spacers that have a mounting bridge for a Hertz ST25K Neo horn tweeter. The kit comes with 2 pair of horn brackets that have different height offsets for the horns. This allows you to set the height that the horn sits above the 6x9 in four different configurations. The height that you choose will depend on the speaker grill style of your particular lids and its distance from the 6x9 mounting point.  

U-HH25 Harley Pro Audio 6x9 Speaker Kit

The bridge adapter has a wire channel machined into it for the horn wires. Using the supplied neoprene gasket you get an airtight seal and a clean wire run. 


Shipping This Item Ships to The United States 

Items built to order have a build time of up to two weeks before shipping. Items that are not built to order (e.g. amplifiers, speakers, .etc) typically ship in 2 - 3 business days. Many of our speaker kits feature machined special parts and customized wire harnesses that are built to order. 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! 

Once You Order Does Ship

You will receive an automated email with tracking information as soon as our shipping department creates a shipping label for your package.  


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

[powr-form-builder id=1f43a15c_1475460501]

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 return Authorization number and send your item to our returns center 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.

Join the Club to Get  $100 Off Your Order!

Register as a member and get $100 off qualifying orders of $1,500 or more that are financed through SNAP(our kickass finance company). $100 comes right off the total of your order. Orders under $1,500 still qualify for 100 days same as cash with no credit needed. 


Members Only

Join the club. American Hard Bag Membership

Important Note: In order to take advantage of our $100 member discount on financed orders you must register a user account. Members with a user account also enjoy member only benefits such as free shipping and free product upgrades. See details on your account page.

Finance Up to $3,000 Today and Shop Right Away

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.  

American Hard Bag Financing

No Interest & You Pick Your Payments

We pay your initial SNAP processing charge for you. There is an initial charge that SNAP has for running the application, but we cover that charge entirely for you when you make your purchase. SNAP gives our customers 100 days to pay and not incur any fees or interest. So your entire purchase is "Same As Cash". No hidden fees.

No Credit Needed & No Hard Credit Inquiry

Snap has an 80% approval rate. It's simple. If you have had a job for 90 days or more, have a checking account in good standing, and make more than $1,200 a month you should qualify. You never have to worry about your credit score being affected by applying. So there is nothing to lose except a great opportunity. 

Up to $3,000


Apply Now

Bad Credit, No Credit, OK!

Snap Finance provides easy financing for people with good or bad credit just the same. 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.

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.

High Credit Limits

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. 


Apply Now


Got Questions? 

Call American Hard Bag and we can help to see if Snap Finance is right for you! 1(888) 311-0016