M5-800X4 — Amplifier Tuning Guide, page 1
1998+ Harley-Davidson® Road King®
M5-800X4 Tuning Guide
MOTORCYCLE AUDIO
#ROCKFORDFOSGATE
Maximum Mobile Device Volume: 95%
For optimum sound quality and prevent speaker
damage, keep volume setting at 95% or below.
1 ACC
2 PRESS+HOLD
3 DISCOVER
4 PAIR
AMPLIFIER TUNING
Before installing amplifier, remove cover and set PRESET to
OFF position. Verify remaining settings are properly config-
ured. Replace cover for water-tight protection.
FRONT
IN
C.L.E.A.N.
OUT
REAR
C.L.E.A.N.
OUT
MIN MAX
INPUT LVL
MIN MAX
INPUT LVL
OFF
PRESET
ON
OFF
PRESET
ON
MIN MAX
PUNCH EQ
MIN MAX
PUNCH EQ
2CH
4CH
LP
AP
HP
LP
AP
HP
Hz
80 200
FREQ
50 250
Hz
80 200
FREQ
50 250
PWR
FRONT INPUT LEVEL:
03:00 O'Clock
REAR INPUT LEVEL:
03:00 O'Clock
PRESET:
OFF
PUNCH EQ:
MIN
CROSSOVER:
HP (High-Pass)
CROSSOVER FREQ:
80Hz
INPUT:
2CH (L/R Input)
BLUETOOTH PAIRING
Once installation is complete, reduce volume on your mobile
device and follow the steps below to pair your device with the
Bluetooth module. Subsequent pairing will be automatic.
1 Turn motorcycle ignition to ACCESSORY.
2 PRESS & HOLD Bluetooth button for 2 seconds.
3 DISCOVER mode will begin when module audibly chimes
and 2 outer LEDs begin to alternately flash.
4 PAIR mobile device using one of the following methods:
iOS:
1. Go to SETTINGS > BLUETOOTH.
2. Select RFBTRCA.
3. Pairing is confirmed with an audible chime and all 3
LEDs will illuminate.
ANDROID:
1. Go to SETTINGS > CONNECTED DEVICES > BLUE-
TOOTH.
2. Select PAIR NEW DEVICE.
3. Select RFBTRCA.
4. Choose ALLOW TO PAIR.
5. Once pairing is complete you will hear an audible
chime and all 3 LEDs will illuminate.
1220-79135-01
12-11-2023
M5-800X4 — Amplifier Tuning Guide, page 2
1998+ Harley-Davidson® Road King®
M5-800X4 Tuning Guide
OPTIONAL FRONT LOWER OUTPUTS
FRONT LOWER HARNESS
(–) White/Black | (–) Grey/Black
4 | 1
LEFT | RIGHT
3 | 2
(+) White | (+) Grey
Looking into back of connector
Right Speaker
CTA-2006 Dynamic Power
125 Watts x 4 @ 4Ω
200 Watts x 4 @ 2Ω
Left Speaker
CTA-2006 Dynamic Power
125 Watts x 4 @ 4Ω
200 Watts x 4 @ 2Ω
BATTERY & SPEAKER HARNESS
Battery (+)
Amp Remote (+)
To Optional Lower Front Outputs
Left Speaker Output
Battery (–)
FRONT INPUT LEVEL
4Ω Lower Speakers:
Retain front input level at 3:00 o'clock setting as illustrated on opposite side.
2Ω Lower Speakers:
Reduce front input level until sound is balanced with rear saddlebag speakers.
FRONT
IN
C.L.E.A.N.
REAR
C.L.E.A.N.
MIN MAX
INPUT LVL
OUT
MIN MAX
INPUT LVL
OUT
PRESET
OFF
PRESET
OFF
ON
ON
MIN MAX
PUNCH EQ
MIN MAX
PUNCH EQ
2CH
4CH
LP
Hz
80 200
AP
HP
FREQ
50 250
LP
Hz
80 200
AP
HP
FREQ
50 250
PWR
1220-79135-01
12-11-2023
