Diamond-Arc Speaker Amplifier Combo 65RG-KS125.2


Ready for a compact and powerful system for your 2014+ bagger? We’ve got you covered with our new Diamond-Arc Audio Combo. Our new combo offers simple installation, spectacular out-of-the-box sound without requiring complex tuning, and no need to mount external tweeters. You'll enjoy a fuller-sounding bottom and much better sound quality from the horn-loaded tweeters.

Arc Audio’s KS 125.2 Full Range Mini Amplifier has a bass frequency extension technology that provides increased perceived bass frequency response below the low-frequency cut-off in an audio system. BX2 uses the principle of the missing fundamental, which creates the sensation of low frequencies by generating a carefully calculated series of harmonics designed to simulate the auditory experience in the human ear caused by the missing fundamental pitch.

When paired with Diamond Audio’s MSPRO65 speakers and M075T Tweeters, you have a system that produces crisp highs and beefy lows, clear enough to hear at high speed running down the freeway.

Flash Your Own Radio

This combo is available with an optional radio flash tool that allows you to flash your own radio unlimited times. Licensed for a single bike (VIN locked) and you can add as many additional bikes as you like for $49

Diamond Audio 6.5" Pro Speaker Kit

We have been working closely with Diamond Audio for some time now on pro audio speakers specifically for Harley applications. This kit is the result of all that hard work. The kit is a direct bolt-in that does not require any modification to the bike to install. Contains one set of MSPRO65 High Output Pro Speakers, one pair of M075T Extreme Output Tweeter-Short Horns, and matching grills.


  • Keep all of your gauges
  • No need to cut up your fairing
  • Much higher volume levels
  • Much better sounding than any other pro audio setup

Arc Audio KS 125.2 BX² Mini Full Range Amp

BX2 technology allows the system user to experience dramatically improved levels of system performance, sound quality, and improved low-frequency response by:

Increasing low-frequency output and performance without causing the speakers to perform outside their physical design limitations.

Decreasing power consumption during low-frequency reproduction up to 75%.

Allows small format speakers to reproduce low frequencies traditionally designed for larger speakers.


  • The KS125.2BX Mini Exclusively Incorporates ARC Audio’s BX2 Low-Frequency Enhancement Technology. The BX2 Technology Gives You Big Bass And Improved Low-Frequency Response Without The Additional Physical Demand On Your Speakers.
  • The KS125.2BX Mini Uses A High-Velocity Forced Induction Fan For Additional Cooling.
  • Bridge Auto Detect Mode (Autosense Turn On).
  • Class G/H Switching Design 
  • Protection Against: Reverse Voltage, Speaker Short, And Thermal Overload.
  • Wide Band Over Voltage Protection Allows For Continued Use Without Interruption From Very High Voltage Spikes
  • Optically Isolated Mosfet Power Supply.
  • Stable to 2-Ohms Stereo.
  • Ultra-Low Radiated Noise for Clean AM/FM/ Reception

Fairing Mounted Amplifier Power Kit

This powerful amplifier kit comes complete with all the cabling, speaker wires, terminals, disconnects, and fuse blocks needed to perform a quality installation, except for RCA interconnects.


  • Waterproof eight gauge fuse holder that uses MIDI-style fuses
  • Fuse holder is compact and very friendly to mount
  • Comes with a large hook and loop mounting pad
  • Includes load resistors to prevent distortion and damage

Specifications: Speakers

  • Power Rating: 200 W RMS/ 400 MAX
  • Sensitivity: 97dB 1W/1M
  • Frequency Response: 110Hz-10k Hz+/-3dB
  • Nominal Impedance: 4 ohm
  • Mounting Depth: 2.375"
  • Cut-out Diameter: 5.625"
  • Over-all Diameter: 6.5"
  • Over-all Height: 2.5625"

Specifications: Tweeters

  • Diameter - 2.28"
  • Overall depth - 2.0"
  • Mounting Depth - 1.12"
  • Sensitivity - 106 dB 1W/1M
  • Frequency - 2k - 20k
  • Impedance - 4 Ohm
  • Power Handling - 50W RMS / 100W Max
  • Included Crossover - 12db

Specifications: Amplifier

  • 2- Channels @ 4 Ohms - 70w
  • 2-Channels @ 2 Ohms - 125w
  • 1-Channel @ 4 Ohms (Bridged) - 250w
  • Frequency -5Hz - 20kHz
  • Crossover Range - 50Hz - 550Hz
  • S/N Ratio - 101dB
  • Input Sensitivity - 170mV - 3.5V
  • Fuse - 1 x 30 Amp
  • Dimensions - 8.25"(L) x 4.8"(W) x 1.7"(H)


  • 2014 - Present Street Glide, Electra Glide, Ultra Glide
  • 2015+ Road Glide (with heat gun modification)*

Installation notes: radio interface required when retaining factory radio. A radio flash and or a DSP is recommended.  

* Speaker is slightly oversized. To make it fit, use a heat gun to heat up the inside and outside of the speaker pod where the speaker would sit until it changes color. Then drop in the speaker and screw it in.

What's in the Box?:

  • (1) Pair Diamond Audio MSPRO65 High Output Pro Speakers
  • (1) Pair Diamond Audio M075T Extreme Output Tweeter-Short Horns
  • (1) Pair Fairing Speaker Grills
  • (1) Arc Audio KS 125.2 BX² Mini Full Range Amp
  • 8 gauge OFC amplifier power and mounting kit
  • All Applicable Manuals and hardware


  • Diamond Audio Components: 1 Year
  • Arc Audio Components: 1 Year
  • American Hard Bag Components: 5 Years


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.

Easy as 1 - 2 - 3!

We have 3 great financing options for you. Snap Financing, Installment Payments, and Split Pay. Learn more below.

No Credit Financing

12-18 months

4 Payments

Did you know - you can check your eligibility with all 3 options without negatively impacting your credit?


Questions? Call us at 888-311-0016

Financing with Snap!

Get Approved

Could get approved for a lease purchase agreement of up to $3,000

*minimum finance $450

Instant Access

Get instant ACCESS to your financing upon approval


Get shopping! Snap lease-to-own financing lets you get what you need, when you need it.

  • 100 days same as cash - $0 in fees if paid off within 100 days
  • No hidden fees
  • No interest
  • No application fee
  • No credit needed and no hard credit inquiry - Bad credit/No credit OK!
  • High credit limits
  • 80% approval rate - All you need is a job making $1200 or more, be 18+ years old, and have an active checking account.
  • Snap doesn't offer traditional loans. Instead, we offer a consumer lease that allows you to finance the merchandise over 12-18 months of convenient payments. We also offer a 100-Day payment option, the best terms around. Need new tires for your car? Or new furniture for your growing family? Don't let bad credit stand in your way. Snap is your partner for fast and easy lease-purchase financing.
  • No Credit Needed refers to Snap’s lease-purchase financing that considers more than just credit reports to determine approvals or denials. In fact, applications for Snap’s lease-purchase financing aren’t even reported to TransUnion, Equifax, or Experian. Our proprietary decisioning process allows us to look beyond bad credit, no credit, and bankruptcy to approve more applicants.

See what you qualify for without impacting your credit.


Questions? Call us at 888-311-0016

Financing with Bread

Shop Online
Select Pay Over Time with Bread at checkout

Choose your plan - Easy Installments or Split Pay with your card of choice

Get your item now and pay over time!
It's that easy!

  1. Simple transparent terms. No prepayment penalties. No deferred interest.
  2. Applying is easy. All we need is a few pieces of information and you get a decision in seconds.
  3. Sign up for automatic payments and have the flexibility to change your due date if needed.
  4. Always know how much you’ll pay. Easy equal installments. No surprises.
  1. U.S. residents over the age of 18 (or over 19 for Alabama or Nebraska residents) are eligible, provided your identity can be verified.

  2. Checking your rate does not affect your credit score as only a soft pull is completed to check your eligibility. If you choose to finance your purchase with Bread after your pre-approval, we will not perform a hard inquiry with any of the three major credit reporting agencies. Once you have taken out a loan, Bread may report repayment information about your account to the consumer reporting agencies, which may impact your credit score. We may also obtain your credit profile from smaller credit reporting agencies.

  3. You will not be able to adjust your loan terms after you have checked out.

  4. You can apply via the website of any participating online store. When you’re ready to buy, click on Bread’s® financing button to get your rate in seconds. If you pre-qualify, you will be presented with the financing terms offered and sample payment amounts. Add the item to the retailer’s shopping cart and choose Bread® or “Pay Over Time” as your preferred method of payment when you check out.

Got Questions? 

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