About the Infinity Perfect 4SPKSYS

Product highlights:
- designed for 2014-2022 Harley-Davidson Street Glide and 2015-2022 Road Glide motorcycles with factory fairings and saddlebags
- system includes 6-1/2" Infinity Kappa Perfect speakers, 6"x9" Kappa Perfect speakers, and an Infinity Kappa Perfect 5004A amplifier
Infinity Kappa Perfect 600X 6-1/2" speakers
- component speaker system includes 2 woofers and 2 tweeters with inline crossovers
- 6-1/2" Plus One basalt fiber woofer cone with hi-roll rubber surround
- 1" edge-driven polyphenylene sulfide dome tweeter
- removable tweeter works with component and coaxial configurations
- IPX5 weather-resistance rating
- Street Glide, Road Glide, and Tour Pak grilles included
- handles up to 80 watts RMS (240 watts peak power)
- frequency response: 60-20,000 Hz
- sensitivity: 95 dB at 2.83 volts
- grilles included
- warranty: 3 years
Infinity Kappa Perfect Series 6"x9" speakers
- component speaker system includes 2 woofers and 2 tweeters with inline crossovers
- 6"x9" Plus One basalt fiber woofer cone with hi-roll rubber surround
- edge-driven polyphenylene sulfide dome tweeter
- removable tweeter works with component and coaxial configuration
- handles up to 100 watts RMS (300 watts peak power)
- frequency response: 50-20,000 Hz
- sensitivity: 95 dB at 2.83 volts
- grilles included
- warranty: 3 years
Infinity Kappa Perfect 5004A 4-channel amplifier
- compact 4-channel amplifier
- 75 watts RMS x 4 at 4 ohms
- Class D amp technology (frequency response: 20-20,000 Hz)
- selectable high-pass filter (60, 80, 120 Hz at 12 dB/octave) on front channels
- selectable high- or low-pass filter (60, 80, 120 Hz at 12 dB/octave) on rear channels
- weather-resistant aluminum chassis and conformal-coated circuit board
- dimensions: 11"W x 1.75"H x 3.3"D
- warranty: 1 year
- MFR # INFKP4SPKSYS
- Item # 108P4SPKSY
- California customers: Please click here for your Proposition 65 WARNING.
What's in the box:
Infinity Perfect 4SPKSYS owner's manual
If you need assistance accessing this owner's manual, please give us a call.- This Harley-Davidson audio system includes 9 individually packaged items:
- Infinity Kappa Perfect 600X Speakers:
- Two 2-way speakers
- Two 16" Lengths of wire with in-line crossovers
- 2 Surface mount tweeter housings
- 2 Tweeter opening covers
- 2 Street Glide grilles
- 2 Road Glide grilles
- 2 Tour-Pak grilles
- Tweeter removal tool
- Eight 5/8" Screws
- Four 5/8" Flat head screws
- Installation instructions
- Template on box
- 3 Infinity logo badges
- Infinity Kappa Perfect 900X:
- Two 6x9 2-way speakers
- Two 16" Lengths of wire with in-line crossovers
- 2 Surface mount tweeter housings
- 2 Tweeter opening covers
- 2 Grilles
- 2 Mounting brackets
- 2 Speaker protectors
- 2 Templates
- Tweeter removal tool
- Eight 1" Screws
- Eight 1/2" Screws
- Four 5/8" Flat head screws
- Installation instructions
- Infinity Kappa Perfect 5004A Amplifier:
- 4-Channel amplifier with attached 6.5" input harnesses and 8.5" power/ground & output harnesses (inline 40A ATO fuse)
- 2 Cover plates
- Spare 40A ATO fuse
- Four 5/8" screws
- Four 4mm counter-sunk screws
- Four 6" wire ties
- 2 Decals
- QR Codes for owner's manual (En/Sp/Fr)
- Safety instructions
- Saddle Tramp BC-DSPX-HD2:
- DSP/interface module
- 3' T-Harness
- 16" Input harness
- Saddle Tramp BC-AMP06:
- Amplifier mounting plate (Street Glide)
- Two 8.5"x6" sheets of hook-and-loop fastener
- Thirteen 7.5" wire-ties
- Installation instructions
- BC-AMP04:
- Amplifier mounting plate (Road Glide)
- Three sheets of hook-and-loop fastener (7.5"x5" / 3"x3" / 5"x1.5")
- Four 3/4" bolts
- Four 12mm machine screws
- 4 Lock-nuts
- Saddle Tramp BC-9726:
- 4 Amp bypass connectors
- Two saddlebag speaker harnesses
- 4-Pin connector (un-pinned)
- Saddle Tramp HM-9723:
- 8.5' Rear speaker Y-harness
- Two 26" rear speaker harnesses
- Eight 6" wire-ties
- 6 Cable holders with 3M adhesive backing
- HM-9703 Amplifier Wiring Kit:
- 6' Power & ground harness with attached 22" turn-on wire
- 12" Power wire lead (bare-ended wire on one end / ring terminal on other end)
- Mini-ANL fuse holder
- 60A Mini-ANL fuse
More details on the Infinity Perfect 4SPKSYS

Product Research
4-Channel Amplifier
Front 6.5" Speakers
Rear 6x9 Speakers
Features
System Overview: The Infinity Perfect 4-Speaker Audio System (INFKP4SPKSYS) is designed specifically for mounting in select 2014-2022 Harley-Davidson Electra Glide, Ultra Limited, and Road Glide motorcycles equipped with factory fairings and saddlebags. The audio system includes a Kappa Perfect KP5004 4-channel amplifier; a pair of Infinity Kappa Perfect 600X 6.5" front speakers; a pair of Infinity Kappa Perfect 900X 6x9" rear speakers; along with speaker grilles, amplifier mounting hardware, and vehicle-specific Saddle Tramp wiring harnesses that let you plug directly into the factory wiring with no splicing.
Compatibility: The Infinity Perfect 4-speaker Audio System is designed specifically for mounting in the following Harley-Davidson motorcycles equipped with a factory fairing and saddlebags:
Harley-Davidson | Model | Body Style | Year Range |
---|---|---|---|
Electra Glide (Batwing) | Electra Glide Ultra Classic Low Twin Cooled | FLHTCUL TC | 2015-2016 |
Electra Glide Ultra Classic Twin Cooled | FLHTCU TC | 2014-2016 | |
Electra Glide Ultra Classic Low | FLHTCUL | 2015-2016 | |
Electra Glide Ultra Classic | FLHTCU | 2014-2019 | |
Ultra Limited (Batwing) | Touring Ultra Limited | FLHTK | 2014-2022 |
Touring Ultra Limited Shrine | FLHTK SHRINE | 2014-2022 | |
CVO Ultra Limited | FLHTKSE | 2014-2022 | |
Touring Ultra Limited | FLHTKSE | 2014-2022 | |
Touring Ultra Limited Anniversary | FLHTK ANV | 2018 | |
CVO Ultra Limited Anniversary | FLHTKSE ANV | 2018 | |
Road Glide (Sharknose) | Touring Road Glide Limited | FLTRK | 2020-2022 |
Touring Road Glide Ultra | FLTRU | 2016-2019 | |
CVO Road Glide Ultra | FLTRUSE | 2015-2016 |
Note: The Infinity Perfect 4-Speaker Audio System is not compatible with factory Rockford Fosgate audio systems.
DSP Interface: The Infinity Perfect 4-Speaker Audio System includes a Saddle Tramp BC-DSPX-HD2 interface module and corresponding T-harness for interfacing the factory wiring. Harley-Davidson factory radios use pre-programmed crossover and equalization settings for use with the factory speakers. These settings restrict the audio quality when adding aftermarket equipment. The DSP interface reprograms the factory radio to output a flat frequency response curve for the new audio components.
4-Channel Amplifier
4-Channel Design: The Infinity Kappa Perfect 4-Channel Amplifier (KP5004) is designed to provide 75W RMS x 4 channels @4Ω, 125W RMS x 4 channels @2Ω, and 250W RMS x 2 channel bridged @ 4Ω.
Compact Size: The KP5004 amplifier is housed in a compact chassis with a small footprint, allowing it to fit in more vehicles where mounting space is limited.
Class D Design: The Infinity KP5004 features class D amp topology, providing efficiency and low-power consumption with high signal output.
Control Panel: The control panel is located on the input side of the amp. Two cover plates are included, one for each end of the amp, helping keep the controls dry while preventing unwanted adjustments. Controls include:
- Input Level: A 2-position switch; select High (speaker level) or Low (preamp level).
- Level: Two rotary controls; adjusts the level of the input signals for the Front and Rear channels.
- Crossovers:
- Front X-Over (HPF): A 3-position switch; select a High Pass frequency; 60Hz, 80Hz, 120Hz, or Off.
- Rear X-Over: A 3-position switch; select High Pass, Off (full-range), or Low Pass.
- Frequency: A 3-position switch; select 60 Hz, 80 Hz, or 120 Hz.
Connections: All of the KP5004 input and output connections consist of wires terminated in Molex plugs. Matching adapter harness (sold separately) can be used to mate up with the plugs. Alternatively, the plugs can be cut off and a bare-wire connection made by soldering or using crimp connectors.
- Audio Inputs: A 6.5" input harness features 18-gauge wire terminated in two 4-pin plugs (front/rear). The inputs can accommodate low-level (RCA) or high-level signals. High-level (speaker-level) connections can be spliced wire to wire, while low-level signals will require a speaker wire-to-RCA adapter such as the 46KISL or XD-CLRAIC2-SW (both sold separately) for connection if running RCA cables to the amplifier.
Note: The Infinity KP5004 does not include RCA input jacks.
- Power/Ground/Remote: An 8.5" harness provides the connections for the 14-gauge power and ground wires, along with a 16-gauge remote turn-on wire (if using low-level input signals). The power wire includes an inline 40A ATO fuse, along with a spare fuse.
Note: An 8-gauge amplifier wiring kit will be required for powering the amp and is sold separately.
- Speaker Outputs: Two 8.5" harnesses provides the four 14-gauge speaker outputs. Two sets of channels can also be bridged, using the Left+ and Right-, for two 250W outputs (@4Ω).
Auto Turn-on: When using speaker level inputs, the DC offset circuit in the amp senses when a signal is present and turns the amp on automatically.
Protection Circuitry: The amp features 4-way protection, and will shut itself down in the following cases:
- Temperature: Amplifier is overheated.
- Over/Under Voltage: Voltage at the +12V (Battery) terminal is less than 9V or more than 16V.
- Short Circuit: Short circuit in speaker or speaker wire.
- DC Voltage: DC Voltage on the speaker outputs.
Power and Protection LEDs: The amplifier features a Power/Protection LED on the input side of the unit. The LED illuminates Green when the amplifier is supplied power, and will illuminate Red when the amplifier goes into protect-mode.
Front 6.5" Speakers
Grilles: The Kappa Perfect 600X speakers include three sets of grilles to fit multiple Harley-Davidson applications, fairing and Tour-Pak locations.
Neodymium Magnets: To reduce their weight, and not raise the motorcycle's center of gravity, both the woofers and tweeters use neodymium magnets.
Tweeter Mounting Options: Each tweeter is bridge mounted so there's no opening in the center of the woofer cone, making the speaker more weather resistant. The tweeters can also be removed and surface mounted using the included adapters.
Tweeter Dimensions:
Surface Mount | |
---|---|
Mounting Height | 0.915" |
Mounting Depth | screw depth |
Frame Diameter | 1.866" |
Note: Mounting the tweeters separately from the Kappa Perfect 600X woofers will require drilling and modifications to your motorcycle; no modifications are necessary if the tweeters are left bridge-mounted to the woofer.
Crossover: The crossovers are wired in-line between the factory harnesses and the speakers. The 8" input wires mate to the included Saddle Tramp Speaker Y-Harness that interfaces the factory wiring, so cutting the factory wiring is not necessary. The 8" woofer and tweeter outputs plug into the terminals on the speaker frames. When mounting the tweeters separately, the crossovers' tweeter output wires plug into the 8" wires attached to the surface mount housings. The crossovers are approximately 7/8" wide x 1/2" tall x 1-3/4" long.
Rear 6x9 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.
Note: Installation of the rear 6x9 speakers requires cutting the saddlebag lids.
Neodymium Magnets: To reduce their weight, and not raise the motorcycle's center of gravity, both the woofers and tweeters use neodymium magnets.
Tweeter Mounting Options: Each tweeter is bridge mounted so there's no opening in the center of the woofer cone, making the speaker more weather resistant. The tweeters can also be removed and surface mounted using the included adapters.
Tweeter Dimensions (surface mount):
- Mounting Height: 0.915"
- Mounting Depth: Screw depth
- Frame Diameter: 1.866"
Crossover: The crossovers' 8" input wires are terminated with male quick slides, 0.25" positive and 0.187" negative. The 8" woofer and tweeter outputs plug into the terminals on the speaker frames. When mounting the tweeters separately, the crossovers' tweeter output wires plug into the 8" wires attached to the surface mount housings. The crossovers are approximately ?" wide x ½" tall x 1¾" long.
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