We have 3 great financing options for you. Snap Financing, Installment Payments, and Split Pay. Learn more below.
Intelligence Mixed with Incredible Power from Helix
The Brand New Helix M FOUR DSP is a powerful 4-channel amplifier with a fully-integrated digital sound processor manufactured in Germany that brings a continuous output of 135 Watts per channel, both at 4 Ohms and 2 Ohms. This game-changing control center is cool, compact, extremely practical, and up for any challenge in your Harley system.
Perfect for integration with factory Harley radios, the M Four amplifier/DSP has a number of features that make it totally different than anything else ever made.
How it Works
4 channels of internal power and 6 more channels of RCA out for additional amplifiers. All 10 channels have a full range of DSP function
This amplifier has no knobs or switches on it. It uses a very slick PC interface to set everything up. The best part is that the software allows you to see both what the radio signal looks like as well as all adjustments that you make with the processor. For serious systems, this is the ultimate amplifier and tuning tool.
Dynamic Bass Enhancement
The “Dynamic Bass Enhancement” ingeniously combines maximum deep bass and highest sound pressure – regardless of the music style or the tone controls in the head unit. Depending on the input signal, the “Dynamic Bass Enhancement” gains the lower frequency range and varies the cut-off frequency of the subsonic filter. The result is a significantly more powerful and deeper bass response at low and medium volume levels without the risk of overloading the subwoofer neither mechanically nor electrically at high volume levels. It is simply fascinating what bass performance is suddenly possible.
- StageXpander makes the entire system sound bigger and bolder
- Dynamic Bass Enhancement maximizes deep bass
- ClarityXpander feature adds additional harmonics in the upper-frequency range
- Built-in input RTA and input EQ that can compensate for any radio flash. No need to flash your bike for a perfect signal.
- Built-in 10 channel EQ, crossover, phase control
- Built-in signal meter and anti clipping feature saves speakers at insane volume levels
- 135 Watts RMS output power per channel
- Extremely efficient low-heat dissipation
- Bridgeable amplifier channels for driving powerful speakers
- DSP-board manufactured in Germany
Fits '14+ Street Glide, Electra Glide, Ultra models in the fairing on top of the radio. '15+ Road Glide requires slight modification to headlight bracket and headlight plastic mounting tabs. Will not fit in the fairing of '13 and down Road Glide or Street Glide.
Works with all radio flashes.
Factory Harley Radio Interface for Front Signal Included
No need to buy a separate radio connection harness. Plug-and-play connections are included with this amplifier. There is also no need for an external radio load compensation network either. The Helix M Four DSP amplifier has an advanced radio load compensation circuit built-in. Helix amplifiers simply do not require the complex and bulky signal interfaces that all other amplifiers and DSP units require. This makes connections much simpler and much cleaner.
Factory Harley Accessory Power Interface Included
No need to cut into the factory radio harness to get accessory turn-on power. A plug-and-play connection and cable is included.
- Model: M FOUR DSP
- Power RMS: @ 4 Ohms: 4 x 135 W; @ 2 Ohms: 4 x 135 W; Bridged @ 4 Ohms: 2 x 270 W
- Amplifier Technology: Class D
- Inputs: 6x RCA, 6x High-level speaker, 1x Optical SPDIF, 1x Remote In
- Input sensitivity: RCA 1-4 V, Highlevel 5-20 V
- Input impedance RCA: 22 kOhms
- Input impedance high-level: 9-33 Ohms
- Outputs: 4x Speaker, 6x RCA, 2x Remote Out
- Output voltage RCA: 6 Volts RMS
- Frequency response: 20 Hz-22,000 Hz
- DSP resolution: 64 Bit
- DSP power: 295 MHz
- Sampling rate: 48 kHz
- DSP Type: Audio signal processor
- Signal converters: A/D: AKM 32 Bit, D/A: AKM 32 Bit
- Signal-to-noise ratio digital input: 105/108 dB Speaker / Line Output
- Signal-to-noise ratio analog input: 102/105 dB Speaker / Line Output
- Distortion: < 0.03/0.005 % Speaker / Line Output
- Damping factor: 100
- Operating voltage: 10.5-16 Volt (max. 5 sec. down to 6 Volts)
- Idle current: 1500 mA
- Max. remote output voltage: 500 mA
- Fuse: 2x 30A LP-Mini-Fuse
- Additional features: ADEP.3 circuit, Auto Remote switch, 32 Bit CoProcessor, Control Input
- Dimensions (H x W x D): 2.0” x 9.06” x 6.06”
- DSP MADE IN GERMANY
What's In The Box?:
- (1) 4-Channel Amplifier with Integrated 10-Channel DSP
- (1) Line Output Connection Cable
- (1) USB Cable
- (1) Instruction Manual
Usually ships in 1 to 3 business days. We process and build orders in the order in which they are received. This allows our experts to review every order and check that it is correct for your specific bike. This means sometimes you might wait a little longer to receive your order but it's always worth it!
|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.
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.
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.
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!
No Credit Financing
Financing with Bread
How It Works
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!
- Simple transparent terms. No prepayment penalties. No deferred interest.
- Applying is easy. All we need is a few pieces of information and you get a decision in seconds.
- Sign up for automatic payments and have the flexibility to change your due date if needed.
- Always know how much you’ll pay. Easy equal installments. No surprises.
- U.S. residents over the age of 18 (or over 19 for Alabama or Nebraska residents) are eligible, provided your identity can be verified.
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.
You will not be able to adjust your loan terms after you have checked out.
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.
Financing with Snap!
How It Works
Could get approved for a lease purchase agreement of up to $3,000
*minimum finance $450
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.