Taramp's CRX4 4-Way RCA Crossover Car Audio Processor

Built for compact installs where tuning control matters, the CRX4 offers four RCA channels, adjustable crossover points, and bass-boost capability in a small footprint (190 x 145 x 40 mm). It lets installers and enthusiasts route and shape signals before amplification so each speaker or amp gets the correct frequency band and level.

How does the CRX4 improve sound in a car system?

Rather than sending full-range output to every amp, the CRX4 separates frequency bands so tweeters, midranges and subwoofers receive only their intended ranges. This reduces distortion, increases clarity, and improves power efficiency from your amplifiers.

• Four adjustable crossover outputs for dedicated channels
• Precise frequency splitting to reduce inter-driver interference
• Bass boost option to tighten low-end response before amplification
• Cleaner amp performance by avoiding wasted power on unwanted frequencies

What controls and connections are available on this processor?

The CRX4 uses RCA inputs and outputs for easy integration with head units and amplifiers. Physical controls allow you to set crossover slopes, choose high/low pass modes and apply modest bass boost without relying on source DSP.

• Left/right RCA inputs and four RCA output channels
• High-pass and low-pass settings for each channel pair
• Dedicated bass-boost control for sub outputs
• Compact mounting options for tight installations

How easy is it to install and tune the CRX4 in a vehicle?

The small chassis and standard RCA connectors make the CRX4 straightforward to place near amps or behind the dash. Basic tuning requires only an SPL meter or listening adjustments: set crossover points, level-match outputs, then fine-tune bass to taste.

• Compact dimensions (190 x 145 x 40 mm) for flexible placement
• Lightweight at approximately 560 grams for simple mounting
• RCA wiring to connect to head unit preouts and amplifier inputs
• Quick adjustments without complex menus or smartphone apps

What limitations should buyers be aware of?

The CRX4 is a dedicated line-level processor without onboard amplification, so it must be paired with external amps. It’s intended for signal shaping rather than advanced parametric DSP or digital time alignment features.

• No built-in power amplification — requires external amps
• Analog crossover design — not a full digital DSP suite
• Best used when you need straightforward frequency splits and bass control
• Physical adjustments may require access after initial setup

Who is this for? Installers, car-audio hobbyists and anyone upgrading a vehicle sound system who wants precise analog crossover control in a small package will find the Taramps CRX4 useful. It’s particularly well suited for multi-amp systems where you need dedicated band routing and a simple bass boost stage without adding bulk or complex DSP programming.

Key features at a glance:

• Compact, lightweight chassis for tight installs
• 4 channels with configurable crossover points
• Customizable sound adjustments with bass boost
• Dimensions: 190 x 145 x 40 mm; Weight: 560 grams