NVX XLOC Active Line Output Converter Buyer's Guide
Upgrading a factory car audio system is no longer as simple as swapping out the dashboard radio.
Car manufacturers tightly integrate factory head units into vehicle climate controls, backup cameras, and safety systems.
If you want better sound without sacrificing these native features, a premium factory integration tool is essential.
The NVX XLOC series of active line output converters offers a high-performance, budget-friendly solution for tapping into factory speaker wires and converting them into high-voltage RCA preamp signals for aftermarket amplifiers.
Key Insights
- The NVX XLOC series uses an active design with a selectable impedance load switch (20, 60, or 20,000 ohms) to prevent modern factory radios from shutting down during aftermarket amplifier installation.
- Every model in the lineup features ultra-low distortion (0.01 percent THD), a massive 110 dB signal-to-noise ratio, and handles up to 40 volts of speaker-level input while pushing out a clean 9.5-volt preamp signal.
- The series offers four unique channel configurations (XLOC22X, XLOC24X, XLOC44X, and XLOC66X) available at Sonic Electronix to easily match any car audio system upgrade, from a simple subwoofer addition to a full multi-channel overhaul.
Why Modern Vehicles Require an Active LOC
Many newer vehicles utilize smart factory stereos equipped with complex diagnostic systems.
When you disconnect a factory speaker to wire an aftermarket amplifier, the factory radio detects a missing electrical load and immediately shuts down the audio output to protect itself.
Passive line output converters frequently fail in these environments because they lack the necessary internal circuitry to trick the vehicle.
The NVX XLOC series solves this problem with an active electrical design that features a built-in load-selection switch.
This feature forces the vehicle diagnostic system to think the factory speakers are still connected, keeping your audio signal alive and clear.
Also, factory systems often roll off the bass frequencies as you turn up the volume to protect cheap factory speakers from blowing.
The XLOC series includes built-in bass boost capabilities to help restore the low-end punch that factory programming strips away.
Key Specifications Across the XLOC Series
When choosing an integration tool, signal purity and reliability are critical. Every model in the NVX XLOC active lineup shares identical core performance specifications, ensuring top-tier audio quality regardless of the number of channels your system requires.
- Frequency Response: 10 Hz to 20,000 Hz
- Signal-to-Noise Ratio: Greater than 110 dB
- Total Harmonic Distortion (THD): 0.01 percent
- Maximum Input Voltage: Handles up to 40 volts (400 watts RMS)
- Maximum Output Voltage: Up to 9.5 volts
- Selectable Impedance Load: 20 ohms, 60 ohms, or 20,000 ohms
- Bass Boost: 0 to 12 dB fixed at 45 Hz
Choosing the Right NVX XLOC Model for Your System
The XLOC series is split into four distinct models based on your channel requirements. All of these units are readily available at NVX to suit your specific build goals.
NVX XLOC22X (2 Input / 2 Output)
The XLOC22X is the go-to option if you’re simply adding a single subwoofer amplifier or a basic two-channel amplifier to your front door speakers.
It takes a two-channel speaker-level input and delivers a clean two-channel RCA output. It features an RJ11 port for an optional bass remote knob.
NVX XLOC24X (2 Input / 4 Output)
If your factory stereo only provides front speaker outputs but you want to run a full four-channel aftermarket amplifier for your entire cabin, the XLOC24X is the perfect bridge.
It splits a single pair of speaker inputs into four distinct RCA outputs, saving you from using messy external Y-adapters.
NVX XLOC44X (4 Input / 4 Output)
For systems where you want to maintain full front-to-back fade and left-to-right balance controls from your factory radio, the XLOC44X is required.;
It features four dedicated inputs and four dedicated outputs. This model also includes the NVX XLOCXLC wired remote bass level control in the box.
NVX XLOC66X (6 Input / 6 Output)
The heavy hitter of the series, the XLOC66X, handles full-system factory integration.
With six channels of inputs and outputs, you can capture separate signals for your front, rear, and factory subwoofer channels, or sum them for an uninterrupted full-range audio signal.
Like the four-channel version, it includes the wired bass remote.
Expert Installation and Fine-Tuning Tips
Pro Tip: Always use the built-in LED clipping indicator during setup. Play a clean audio track at your maximum usable factory volume, then turn up the gains on the XLOC until the LED flashes, then back it off slightly. This ensures you send a distortion-free signal to your aftermarket amplifier.
When installing an XLOC converter, pay close attention to the three core switches on the chassis:
- Load Selection: Start at 20,000 ohms. If your factory radio cuts out or throws an error, flip the switch down to 60 ohms or 20 ohms until the radio stabilizes.
- Turn-On Mode: The unit offers automatic turn-on via DC offset or audio signal sensing. This eliminates the need to search for a hidden accessory wire behind your dashboard, as the unit will generate its own 12-volt remote output wire to turn on your amplifiers.
- Ground Isolation: If you hear alternator whine or engine noise through your speakers after installation, toggle the ground isolation switch to isolate the audio ground from the chassis ground.