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Compact black box with RCA outputs and speaker wire inputs

Focal

Focal HILO.V3 High-Level to RCA Factory Integration Converter

SKU CH-9J4Z-NP1FN

Converts amplified stereo signals to low-level RCA outputs with 10 Hz to 80 kHz bandwidth and over 100 dB signal-to-noise ratio

  • Product typeLine Output Adapters
  • Converts amplified stereo to clean low-level RCA outputs
  • Removes parasitic interference with fully separated signal grounds
  • Works with any factory head unit via selectable DC/AC detection
  • Auto-generates remote turn-on signal for amplifier activation
  • Operates passively without 12 V supply for simple installs

Factory Integration Converter

The Focal HILO.V3 converts a stereo amplified signal from a factory head-unit into two low-level RCA outputs for an aftermarket amplifier. It retains the original radio and steering controls while adding a clean signal path. The unit automatically generates a remote turn-on lead to activate the connected amplifier. It is designed for installers who cannot replace the OEM source unit.

Bandwidth 10 Hz to 80 kHz

The converter delivers a flat response from 10 Hz to 80 kHz within one decibel, covering the full audible range and harmonics. A signal-to-noise ratio exceeding 100 dB keeps background noise well below the music floor. Selectable AC or DC detection ensures compatibility with various factory head-unit output topologies. Parasitic interference is rejected through separated ground architecture.

Passive Mode Without 12 V Supply

The HILO.V3 operates in passive mode without a 12 V power connection, but the remote output and active circuitry remain inactive in this state. Buyers who need the automatic remote turn-on feature must provide switched power. A built-in speaker simulation network prevents the factory head-unit from muting its outputs when the converter is connected. It suits systems where a power feed is impractical.

How it compares

Measured against everything we stock in Factory Stereo Adapters & Interfaces, at today’s prices. Recalculated every night.

Price $118.99
Pricier than about 85% of the 112 comparable items (median $37.49).

Specifications

Product
Product typeLine Output Adapters

Questions about this item

Does the HILO.V3 need a 12 V supply or can it run passive?

It works passively without 12 V, but the remote turn-on output only functions when the unit is powered.

What bandwidth and signal-to-noise ratio does the converter deliver?

Bandwidth is 10 Hz to 80 kHz at ±1 dB and the signal-to-noise ratio exceeds 100 dB.

How does the selectable DC and AC detection help with different factory head-units?

The switch lets the HILO.V3 match the turn-on voltage type used by any original manufacturer radio, ensuring reliable amplifier activation.

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