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Rockford Fosgate HD14RK Stage 2 audio kit for select 2014-up Harley-Davidson Road King motorcycles: includes 2 speakers, 4-channel amp, and installation gear

Item # 57514RKST2

Ready to upgrade the sound on your Harley-Davidson® Road King®? Go big with Rockford Fosgate's HD14RK kit.

Find what Fits your vehicle


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Ready to upgrade the sound on your Harley-Davidson® Road King®? Go big with Rockford Fosgate's HD14RK kit.

Item # 57514RKST2

Low stock
$1,489.99 -$145.27 Outlet savings

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About the Rockford Fosgate HD14RK

Jon Paul

Rev up the sound on your 2014-up Road King

Ready to upgrade the sound on your Harley-Davidson® Road King®? Go big with Rockford Fosgate's HD14RK kit. Designed to fit select 2014 and newer models with ABS hardshell bag lids, this Element Ready® speaker/amp package features 6”x9” saddlebag speakers, a compact, weather-resistant 4-channel amplifier, a plug-and-play wiring harness and a Bluetooth® receiver that works with your smartphone. Everything is designed to fit your Harley and deliver great sound that overpowers wind and road noise.

Rev up the sound on your 2014-up Road King

Ready to upgrade the sound on your Harley-Davidson® Road King®? Go big with Rockford Fosgate's HD14RK kit. Designed to fit select 2014 and newer models with ABS hardshell bag lids, this Element Ready® speaker/amp package features 6”x9” saddlebag speakers, a compact, weather-resistant 4-channel amplifier, a plug-and-play wiring harness and a Bluetooth® receiver that works with your smartphone. Everything is designed to fit your Harley and deliver great sound that overpowers wind and road noise.

Great sound from rugged speakers

This powerful package includes two rugged, road-ready Rockford Fosgate TMS69BL14 full-range 6"x9" speakers that are designed for bag lid applications. These weather-resistant speakers feature a neodymium motor structure, reinforced polypropylene cones with durable Santoprene surrounds, plus 1" dome tweeters. They pack a lot of sonic punch into a rugged, road-ready design that'll provide a big boost to your bike's audio quality. The included speaker installation kit includes a cutting template, waterproof bag lid mounts, and speaker grilles speakers.

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, and will be mounted to a plate inside the rear of the bag. You'll install the amp using the plate and the Rockford Fosgate amp kit, which includes everything you need — from the wiring harnesses right down to the screws.

Compatibility note: This kit is designed to work with the following models. It works with ABS plastic lids, but is not compatible with fiberglass lids.

  • 2017-up Harley-Davidson® FLHRXS Road King® Special
  • 2014-up Harley-Davidson® FLHR Road King®
  • 2014 Harley-Davidson® FLHRSE CVO Road King®
Note: Some drilling and cutting will be required when you install this kit.

Product highlights:

  • designed to work with select 2014-up Harley-Davidson Road King motorcycles
  • system includes two 6"x9" bag lid speakers, a 4-channel amp, speaker mounting kit, and an amp wiring kit with Bluetooth module
Rockford Fosgate TMS69BL14 6"x9" full-range speakers
  • designed for bag lid applications
  • Element-Ready design is weather- and water-resistant
  • power handling: 100 watts RMS (200 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
  • includes front speaker harness for adding speakers later
  • warranty: 2 years

What's in the box:

  • This Rockford Fosgate package contains 3 individually boxed items:
  • TM400X4AD Amplifier:
  • 4-Channel moto-marine amplifier
  • Power/ground/turn-on plug (installed)
  • Two 8" Speaker output harnesses (bare wire to 4-pin Molex)
  • Two 14" Input harnesses (2 RCA to 4-pin Molex)
  • Amplifier Quick Setup
  • Certificate of Performance Verification
  • TMS69BL14 Baglid Speakers:
  • Two 2-way speakers
  • 2 Grilles
  • 2 Mounting brackets
  • 2 Speaker protectors
  • 2 Templates
  • One 8' Main harness
  • Two 27" Saddlebag harnesses
  • Sixteen 1/2" Screws
  • Sixteen 7" Zip ties
  • 10 Adhesive backed zip tie mounts
  • 2 Cable clamps
  • Installation manual
  • 2 Saddlebag load warning stickers
  • RFK-HDRK Amp Mounting & Wiring Kit:
  • 54" Amp/Bluetooth wire harness with C1 saddle-bag connector and attached Bluetooth audio module (3M adhesive backing)
  • 4' Power/ground/speaker harness with inline 40A ATO fuse
  • 2 T-Harnesses with 11" turn-on wire ('98-'13 & 2014+ Road King)
  • Amplifier mounting plate (attached 3M adhesive strips on bottom)
  • Amplifier top cover
  • 2 Drilling templates ('98-'13 & 2014+ Road King)
  • 45mm Hole saw (attached 1/4" drill bit)
  • 1/8" Drill bit
  • 1 Wire clamp
  • Two 10mm machine screws
  • Two 6mm machine screws
  • 2 Flat washers
  • Twelve 7.5" wire ties
  • Installation instructions

Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.

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More details on the Rockford Fosgate HD14RK

Stacey B.

Product Research

Baglid Speakers
Mounting & Wiring Kit


Compatibility: The Rockford Fosgate HD14RK-Stage2 amplifier and speaker kit is designed to be installed in the following Harley-Davidson Road King motorcycles:

Year Make Chassis Model
2017-up Harley-Davidson FLHRXS Road King Special¹
2014-up Harley-Davidson FLHR Road King¹
2014 Harley-Davidson FLHRSE CVO Road King¹

¹Saddlebag kit only compatible with ABS plastic lids. Not compatible with fiberglass lids.

Note: Some drilling and cutting will be required for installing the HD14RK-Stage2 amplifier and speaker kit.


Overview: The Rockford Fosgate TM400X4ad is a 4-channel Power Series "moto-marine" amplifier with a rated power output of 100 watts per channel at 4-ohms or 2-ohms. This Element Ready amplifier can be used on motorcycles, ATVs, or boats, and can withstand harsh environmental conditions.

CEA-2006 Compliant: CEA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for determining an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4Ω load with 1% or less Total Harmonic Distortion plus noise (THD+N). CEA-2006 allows consumers to compare amplifiers and receivers under identical conditions. The CEA-2006-rated RMS power output is 100 watts RMS x 4 channels. Additionally the power output is 100 watts RMS x 4 channels into 2Ω and 200 watts RMS x 2 channels bridged (into 4Ω).

Element Ready: Rockford Fosgate's Element Ready Amplifiers are protected against dust, UV rays, and corrosion. Marine-grade, two-part epoxy-coated circuit boards are used to prevent corrosion due to exposure in moist and humid places. In addition, stainless hardware is used to help prevent rust and corrosion of all electrical connections.

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

3-Stage Airflow: The amp's 3-stage airflow method efficiently rids the chassis of heat to keep the amplifier running cool. Dual fan forced induction pulls in fresh air. The air flows over the MOSFET transistors to cool them down, and out through the exhaust channel. The top and bottom heat sinks are decoupled, which allows the top to remain cool to the touch. At least 2-3 inches clearance should be provided around the fan intake and the exhaust vents to optimize air flow.

DSM (Discrete Surface Mount): High speed robotics are used in the manufacturing process 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.

CLEAN Set-Up: Rockford's integrated level setting technology, CLEAN (Calibrated Level Eliminates Audible Noise), replaces sophisticated test equipment with input/output clip LEDs, allowing you to match the source unit's output to the amp's gain, and optimize the amp's output. The input clip indicator works in conjunction with the audio source volume, illuminating red when the source reaches its clipping point. The output clip indicator works in conjunction with the input level dial on the amp, illuminating the appropriate color depending on the audio content used for the setup.

Input Level: The amplifier has dual input level controls for the front and rear channels, conveniently accessible from the top. To accommodate the varying range of signal levels from today's factory and aftermarket radios, the input levels are adjustable from 150mV to 12V. A small flat-head screwdriver (not supplied) is needed to adjust the levels.

Input Switch: With the input switch in the 2-channel position, connecting only the front inputs will send the signal to both the front and rear sections of the amplifier. In the 4-channel position, both front and rear inputs must be used.

Crossover: The amplifier has dual built-in Butterworth crossovers for the front and rear channels, variable from 50 Hz to 250 Hz with a slope of 12dB/octave. They can be independently set to high-pass, all-pass (full range), or low-pass operation. The rotary frequency settings can be adjusted with a small screwdriver.

Punch EQ: The amplifier has dual Punch EQ functions that change with the crossover switches. When the crossover is set to low-pass, the Punch EQ acts as a variable bass boost; 0 to +18 dB at 45 Hz. When the crossover is set to high-pass, the Punch EQ acts as a variable treble boost, 0 to +14 dB at 12.5 kHz. When the crossover is set to all-pass, both the bass and treble boost circuits are active.

Power Connections: The TM400X4ad's power, ground, and remote turn-on terminals are located on a single, removable plug. This allows you to quickly and easily connect or disconnect the amplifier. Each individual terminal on the plug is a captive c-clamp connector which will accommodate up to 8-gauge wire. A Phillips- or flat-head screwdriver (not supplied) is required to tighten/loosen the terminals.

Speaker Connections: The amplifier is equipped with two speaker output harnesses, which connects to the amplifier via 4-pin plugs. The speaker wires should be spliced to the 16-gauge bare wires on the 8" pigtails. To bridge the amplifier, you should use the left front and rear positive and right front and rear negative terminals. The amplifier can also operate in 3-channel mode with the front channels wired in stereo and the rear channels bridged to mono.

Signal Input: The amplifier's Differential Inputs will accept either a line-level or speaker-level input on the Molex-style connector. The included input harnesses each have a 4-pin Molex plug and dual RCAs. Front and rear line-level signals can simply be connected via RCA cables from the source unit to the input harness. For a speaker-level signal, you can cut the RCA connectors from the input harness and splice the wires to the speaker wires of the source unit. When using a speaker-level input signal, the auto turn-on feature is active and the remote turn-on terminal becomes a 12 volt output, which can be used to turn on/off an additional amplifier or other component.

Baglid Speakers

Mounting: The included templates guide cutting the opening in each saddlebag lid. The grille and mounting bracket are bolted together with the saddlebag lid sandwiched between them, then the speaker is mounted to the bottom of the bracket.

Wiring: The included cables are designed to easily connect the speakers to the output of the included Rockford Fosgate compact amplifier. One end of the included main harness plugs into the rear amplifier output. The other end splits in two and is routed into the saddlebags (grommets included).

Weather: The TMS69BL14 speakers are made weather resistant by the Santoprene front isolation spider, connecting the tweeter housing and woofer cone assembly.

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.

Mounting & Wiring Kit

Overview: The Rockford Fosgate RFK-HDRK is a complete wiring and mounting kit for installing the Rockford Fosgate TM400X4AD powersports & marine amplifier inside the saddlebags of select Harley-Davidson Road King motorcycles. The included amplifier mounting bracket and installation templates let you mount the 4-channel amplifier while retaining as much interior bag space as possible.

Bluetooth Audio: The RFK-HDRK includes a pre-attached Bluetooth audio module with activation button that can be mounted near your handle-bars for easy access. The Bluetooth module lets you stream music from your Bluetooth-enabled phone or device.

Note: Bluetooth hands-free phone calls are not supported.

Wiring: The included pre-configured wiring harnesses are designed for "plug-and-play" installation of the Rockford Fosgate TM400X4AD amplifier. All wire is made with 100% Pure Crystal-Oxygen Free Copper (PC-OFC) that meets or exceeds AWG (American Wire Gauge) requirements.

CEA-2015: Rockford Fosgate cables conform to the CEA-2015 industry standard, providing the exact amount of copper needed for a specific wire diameter or gauge.

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