Owner's Manual

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10. Crossover-filter frequency controls (FREQ):
Crossover-filter frequency controls. Turn the dials to the left to lower the crossover point, and to the right to raise the crossover point. Crossover
point settings vary by listener preference.
11. HALOsonic:
Lets you plug in an optional cable into your vehicle’s HALOsonic system (if present).
Also functions as a full-range mixing input.
12. ADAS ASSIGN (REF-704a and REF-4555a models only):
If you’ve connected the amp to an Advanced Driver Assistance System (see 13, next), this dial allows you to select the speaker over which you’ll
hear ADAS messages. Turn the dial to FL for the front left speaker, FR for the front right, RL for the rear left, and RR for the rear right.
13. ADAS INPUT (REF-704a and REF-4555a only):
Lets you plug a T568B cable (sold separately) from an optional Advanced Driver Assistance System into the amp’s RJ45 input jack. Also functions
as a priority switching input.
When the system issues a warning or message, the amp will mute the music and play it over the speaker you’ve selected with the ADAS ASSIGN
dial (see 12, previous).
ADAS input channel sequence:
1. FL+ 2. FL- 3. FR+ 4. RL- 5. RL+ 6. FR- 7. RR+ 8. RR-
Four group signal: 1-2, 3-6, 5-4, 7-8
ADAS INPUT
T568B plug
T568B plug
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RJ45 input
T568B cable