Harley 4 Channel Amplifier & Wire Harness Combo for Saddlebag Diamond Audio Micro84U Part# 84U4CHST


Full System Harley Audio Made Easy

Save endless hours of installation time. With this combo you can easily add 660 watts of RMS power to your Harley bagger. This system is plug and play. All wire lengths are correct for the bike, pre-terminated, heat shrunk, and loomed. 

Compact Watertight Connections

Harley Molex Stereo Connector Harley Amplifier Power Connector

We use the same genuine Molex brand MX150 series connectors as Harley uses on the rest of the bike. These connectors are high amperage, compact, and designed for harsh environments. This ensures that your audio system has the same integrity as the rest of your bike. 

Fitment: All years Road King, Road Glide, Street Glide, Electra Glide, and Ultra models. This kit puts the amplifier in either saddlebag. The amplifier wire harness is configured for two speakers in the front of the bike and two speakers in the saddlebags. 4 channels of RCA signal from front of bike to the saddlebag with quick disconnects. 

Powerful Diamond Audio Micro84U Amplifier

At the heart of this combo is the most versatile amplifiers ever made for Harley applications. This is definitely one of our favorite amplifiers for large scale audio systems.   

660 Watts RMS

 90 W x 4 @ 4Ω
• 165 W x 4 @ 2Ω
• 275 W x 2 @ 4Ω Bridged
• S/N: ≤ 100 dBA / THD: .2%
9 x 4 x 1.64 inches
230.5 x 103 x 41.8mm
100% OFC. We don't use cheap aluminum cable in our kits. All of our cables are oxygen free copper (the best). Power cables are heavy 8 gauge with 100 amp power connectors. 
Harley Full System Amplifier Harness

Optional Bond-In Amplifier Mounting Rack

Harley Bond-In Amplifier Mounting Rack for Saddlebags

Add an amplifier mounting rack to keep everything nice and neat inside the bag while keeping your amplifier serviceable. Our Bond-In amp racks are CNC machined specifically for the Diamond Micro84U amplifier. The amp rack comes with a small black mounting puck that gets epoxied into the bag (epoxy included). Then the plexi amp rack bolts to the mounting puck with six stainless fasteners. nice looking stainless Allen socket head screws keep the amplifier firmly mounted to the rack. 

Optional RGB LED Light

RGD LED Light for Harley Amplifier Mounting Rack

Our amplifier racks all come with a light pocket machined in the center. Add the optional LED light for a spectacular looking installation. The light connections are simple. You can wire the LED directly to the amplifiers remote input wire so that it lights up White, Blue, Green, Red, or a number of combinations of those colors. Or you can connect the LED to any standard RGB LED light controller for synced and programmable color control.  
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