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Rockford Fosgate HD14U-STAGE2

Stage 2 audio kit for select 2014-up Harley-Davidson Ultra motorcycles: includes 2 sets of speakers, 4-channel amp, and wiring

Item # 57514UST2

Ready to upgrade the sound on your Harley-Davidson? Go big with Rockford Fosgate's Power Series Stage 2 kit.

Find what Fits your vehicle

Ready to upgrade the sound on your Harley-Davidson? Go big with Rockford Fosgate's Power Series Stage 2 kit.

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About the Rockford Fosgate HD14U-STAGE2

Amp up your Harley's audio

Ready to upgrade the sound on your Harley-Davidson® Street Glide® Ultra, Road Glide® Ultra, Electra Glide® Ultra, or Ultra Limited bike? Go big with Rockford Fosgate's Power Series Stage 2 kit. Designed to fit your Harley, this speaker/amp package features fairing speakers, Tour Pak speakers, and a compact, weather-resistant 4-channel amplifier with an installer-friendly amplifier kit.

Amp up your Harley's audio

Ready to upgrade the sound on your Harley-Davidson® Street Glide® Ultra, Road Glide® Ultra, Electra Glide® Ultra, or Ultra Limited bike? Go big with Rockford Fosgate's Power Series Stage 2 kit. Designed to fit your Harley, this speaker/amp package features fairing speakers, Tour Pak speakers, and a compact, weather-resistant 4-channel amplifier with an installer-friendly amplifier kit.

Phenomenal sound for the fairings

The Stage 2 package includes two pairs of powerful Rockford Fosgate TMS65 6-1/2" speakers that will fit right into the fairing and Tour Pak locations on your Harley-Davidson. These rugged, weather-resistant coaxial speakers will really boost your bike's audio quality, packing a lot of sonic punch into a rugged, road-ready design.

A compact, powerful amplifier

The Power Series TM400X4ad 4-channel amplifier uses Rockford Fosgate's proprietary Class AD technology to draw big power with less current draw from your bike's electrical system. It's made for the road, with conformal-coated circuitry and stainless-steel hardware. This compact amp rocks hard and runs cool, even when it's tucked into a tight space. You'll install the amp using the included Rockford Fosgate RFK-HD14 kit which includes everything you need for the job, from wiring harnesses right down to the screws.

Compatibility note: This kit is designed to work with:

  •      2015-up Harley-Davidson Road Glide Ultra (shark nose fairing)
  •      2014-up Street Glide Ultra (batwing fairing)
  •      2014-up Electra Glide Ultra (batwing fairing)
  •      2014-up Ultra Limited (batwing fairing)

Important Note: All 2014-up Harley-Davidson radios use a “high fidelity” EQ curve which will cause severe distortion in any audio upgrade. After installing this system, you'll need to get your radio reflashed by your Harley-Davidson dealer.


Product highlights:

  • system includes two 6-1/2" fairing speakers, two 6-1/2" Tour Pak speakers, a 4-channel amp, and an amp wiring kit
  • designed for:
    • 2015-up Harley-Davidson Road Glide Ultra (shark nose fairing)
    • 2014-up Street Glide Ultra (batwing fairing)
    • 2014-up Electra Glide Ultra (batwing fairing)
    • 2014-up Ultra Limited (batwing fairing)
Rockford Fosgate Power Series TMS65 6-1/2" full-range speakers (2 sets)
  • designed for your Harley's fairing and Tour Pak speaker locations
  • Element-Ready design is weather- and water-resistant
  • power handling: 75 watts RMS (150 watts peak)
  • warranty: 2 years
Rockford Fosgate Power Series TM400X4AD marine/powersports 4-channel amplifier
  • Class AD amp technology
  • 100 watts RMS x 4 at 4 ohms (400 watts peak)
  • conformal-coated circuit board — suitable for power sports and marine applications
  • twin cooling fans and real-time thermal sensing
  • includes Rockford Fosgate RFK-HD14 amplifier kit
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # HD14U-STAGE2

What's in the box:

  • This package contains 4 individually boxed items:
  • TM400X4AD:
  • 4-Channel amplifier
  • Two 7" Speaker output harnesses (Molex plug on one end and bare wire on the other)
  • Two 14" Input harness (Molex plug on one end and female stereo RCA jacks on the other)
  • Setup disk (CD-ROM)
  • Quickstart guide
  • Amplifier Performance Verification Certificate
  • TMS65 (x2):
  • Two 2-way speakers
  • 2 Street Glide grilles
  • 2 Road Glide grilles
  • 2 Tour-Pak grilles
  • Installation manual (English/ French/ Spanish/ German/ Italian)
  • RFK-HD14:
  • 1 Mounting bracket
  • 1 Heatsink
  • 34" T-harness
  • 65" Power/ground harness w/ inline 60A Maxi fuse
  • 20" Amplifier input harness
  • 2 Amp output Y-adapters
  • 5 Amp bypass plugs
  • 4 Spacers w/ 3M adhesive backing
  • Eight 8" wire-ties
  • Two 16mm bolts
  • Four 18mm counter-sunk screws
  • Four 10mm counter-sunk screws
  • Four 8mm hex-socket screws
  • 2 Flange-nuts
  • Installation guide

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More details on the Rockford Fosgate HD14U-STAGE2

Stacey B.

Product Research


Overview: The Rockford Fosgate HD14U-Stage2 sound system has been specifically designed for installation on select 2014-2021 Harley-Davidson motorcycles. The system includes a 4-channel 400 watt amplifier, amplifier wiring kit, and two pairs of 6-1/2" speakers, one pair for the fairing and the other for the TourPak location.

  • Note: To retain proper fidelity and avoid speaker damage, your factory radio will need to be flashed by an authorized Harley-Davidson dealer after installing the Rockford Fosgate sound system.

Compatibility: The HD14U-Stage2 sound system is compatible with the following model Harley-Davidson motorcycles:

Year Make Model Fairing
2014-2021 Harley-Davidson CVO Limited Bat Wing
2016-2021 Harley-Davidson CVO Ultra Limited Bat Wing
2015-2021 Harley-Davidson CVO Road Glide Ultra Shark Nose
2015-2021 Harley-Davidson Road Glide Ultra Shark Nose
2017-2021 Harley-Davidson Electra Glide Ultra Limited Low Bat Wing
2015-2021 Harley-Davidson Tri Glide Ultra Classic Bat Wing
2014-2021 Harley-Davidson Electra Glide Ultra Classic Bat Wing
2014-2021 Harley-Davidson Electra Glide Ultra Limited Bat Wing

4-Channel Amplifier: The included TM400X4ad is a full-range 400W amplifier rated at 100 watts x 4-channel. As part of the HD14U-Stage2 installation package, the 4-channel amplifier uses the front channels to power the included full-range speakers, while the rear channels can be used for adding an optional pair of TourPak or saddlebag speakers. Pre-formed wiring harnesses for the amplifier and the speakers are provided, greatly reducing the installation time.

  • Class-AD: The TM400X4ad features Rockford Fosgate's proprietary Class-AD technology, allowing it to produce more power with less current draw from the vehicle's charging system.

  • Constant Power: Constant Power is a patented circuit topology that provides instantaneous delivery of output power with varying impedance loads. This means the amp can provide 100 watts of continuous power (RMS) into either a 4- or 2-ohm load.

  • C.L.E.A.N. Setup: The TM400X4ad features clip LED indicators for both inputs and outputs, helping you easily match the source to the amp.

  • 3-Stage Airflow: Air vents in all 4 corners of the amp provide air-flow through internal channels on both sides of the circuit boards. Working in conjunction with laterally mounted heat-sinks, this effectively exhausts heat, allowing the amp to run cooler for optimum performance.

  • DSM (Discrete Surface Mount): In the manufacturing process high speed robotics are used to place 1% tolerance parts and large board traces. DSM improves the efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.

  • Element Ready: Rockford Fosgate's "Element Ready" classification means the TM400X4ad is well protected against dust, UV rays, and corrosion, with conformal coated PCB boards and stainless steel hardware.

  • Controls: The TM400X4ad offers a variety of controls to fine tune your system.

    • Clip Indicators: Both sets of input channels include Clip indicators for both the inputs and outputs.

    • Input Level: The front and rear channels have independent input level (gain) controls, adjustable from 150mV to 12V.

    • 2/4 Channel: When using only one set of inputs, set this switch to 2-channel and connect the inputs.

    • Crossover: The front and rear channels have independent 3-way crossover switches. Each can be set to low-pass, all-pass (crossover is bypassed), or high-pass.

    • Frequency: Working in conjunction with the Crossover Switches, two Frequency dials determine the cutoff frequency, ranging from 50Hz - 250Hz.

    • Punch EQ: This control also works in conjunction with the Crossover by creating a boost at the cutoff frequency, either for high-pass or low-pass settings. If the Punch EQ is turned up when the Crossover is set to AP (all-pass), both bass and treble frequencies will be boosted.

    • Power LED: The Power/Protect LED on the front of the amp illuminates blue when the amp is turned on and operating normally; it illuminates red when one of the protection circuits has engaged (short circuit, impedance too low, or temperature too high).

  • Connections: The TM400X4ad features the following power, signal input, and speaker output connections.

    • Power Connections: The power, ground, and remote turn-on terminals are c-clamps on a removable plug, with each terminal accommodating up to 8-gauge wire. A Phillips-head screwdriver (not supplied) is required to tighten/loosen the terminals.

    • Signal Input:  The TM400X4ad is compatible with either line-level (RCA) or speaker-level inputs. The included input harnesses have Molex plugs on one end (plugs into the amp) and female RCA plugs on the other. When using speaker-level inputs the RCA end is removed and the four individual wires are used.

    • Speaker Output: The included speaker output harnesses have Molex plugs on one end (plugs into the amp) and bare wires on the other.

TMS6SG (2 Pairs): The TMS6SG 6-1/2" full-range coaxial speakers are designed to fit both the fairing and the TourPak speaker locations. The weather resistant speakers feature a reinforced polypropylene cone, with Santoprene surround and Neodymium motor structure, along with a ultra-efficient 1" dome tweeter. The speakers include grilles and mount in the factory location using the factory hardware.

  • Klippel Verified: The Klippel distortion analyzer, a device that uses a laser and sophisticated software to do large-scale analysis of drivers in motion, lets Rockford Fosgate optimize the speaker's motor structure, voice coil alignment, and suspension to yield the best possible performance.

  • CEA-2031 Compliant: The power handling specifications conform to the CEA-2031 industry standards; meaning the speaker has the capacity to handle its rated power under continuous demand, not just for an instant.

  • VAST Surround: The Vertical Attach Surround Technique (VAST) increases a speaker's effective radiating cone area without increasing the size of the basket. The surround is made of Santoprene rubber.

RFK-HD14 Wiring Kit: The 2014-up Harley-Davidson amplifier wiring kit includes pre-cut, pre-loomed 100% Pure Crystal-Oxygen Free Copper (PC-OFC) wiring for installing the sound system, meeting or exceeding American Wire Gauge (AWG) requirements. It includes 8-gauge power and ground wires for running to the battery, as well as all input and output harnesses for running signal from the headunit to the amp and then on to each individual speaker. The battery power wire includes an inline fuse holder with installed 60A Maxi fuse. The amplifier wiring kit also includes an additional amplifier heatsink, for better heat dissipation at higher volumes, and an amplifier mounting bracket.

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Customer Q&A

3 questions already asked

Will I need another Amp if I add lower speakers in the future?
[ Tommy847  Aug 13, 2021 ]
3 answers
According to the Rockford Fosgate website https://rockfordfosgate dot com /products/details/hd14u-stage2/ this kit for 2014 and up Harley's o comes with the TM400X4ad Power Marine 400 Watt Class-ad 4-Channel Amplifier same as the 6 speaker version (for the lowers) so short of an extra wiring harness to add the lowers and maybe flashing the prom in the Amp and or head unit, it should work. Standard disclaimer - Your mileage may vary
[ ROSS  Aug 13, 2021 ]
Yes you wi need another amp if you add more speakers
[ Mark  Aug 13, 2021 ]
Not unless you want to. The kit comes with splitter cables that allow you to have the fairing speakers and lowers on the same channel. I am doing that now on my 2014 FLHTK it works great.
[ Tim  Aug 13, 2021 ]
One of the reviews so far suggested "the DSP Rockford offers makes it 10% better on output and audio quality. With out it , very rarely, usually with hard dubstep or electronic music, I experienced slight clipping." What is a "DSP", and do you guys offer that? I didn't see it listed as an accessory. Thanks!
[ Mike  Jun 10, 2021 ]
1 answer
The DSP that is plug and play for the kit it's a digital sound processor. It's the Rockford dsr1 it helps match the audio quality if it peaks at curtain places. I don't have one I did the Rockford tune and I've road about 6000 miles without a problem. Get the tune done and you'll be good. A side note is I've used other audio kits, I won't say there name , and at full volume they would blow the speakers over long rides. This is the best kit that I've used. Make sure to get it tuned.
[ Robert  Jun 11, 2021 ]
Why do I get distortion when the bike is turned on?
[ Tony  Mar 11, 2021 ]
3 answers
Tony not sure as I do not however I do know that if you own a Harley you have to get it Flashed so you are only using the Rockford Fosgate amp and not both. I just had mine installed everything works and sounds amazing but will be getting it flashed ASAP.
[ JEFF  Mar 11, 2021 ]
Explain your distortion. I don't experience it unless I'm playing a heavy song. Do you mean with the radio playing or turned down.
[ Robert  Mar 11, 2021 ]
Check your grounds. Possibly adjust the settings on the amp based upon volume level to minimize distortion
[ Mark  Mar 11, 2021 ]

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Rockford Fosgate HD14U-STAGE3
Stage 3 audio kit for 2014-up Harley-Davidson® Ultra motorcycles: includes 3 sets of speakers, 4-channel amp, and wiring
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Boost your sound with bag speakers

The Rockford Fosgate HD14U-STAGE3 offers these features:
  • TMS69BL14 6"x9" 2-way speakers
  • designed for your Harley's hardshell bags
  • handle up to 100 watts RMS (200 watts peak)
Compare the sound