Expert Electronics X4 AiR 4-Channel Car Audio DSP

Shape the sound of your compatible car audio system with the Expert Electronics X4 AiR 4-Channel Car Audio DSP. A 15-band input equalizer, per-channel parametric adjustment and Bluetooth app control bring detailed tuning into a compact automotive processor.

Flexible Tuning for Your Installation

• Four-channel processing: configure a compatible speaker and amplifier layout using crossover and routing controls.
• 15-band input equalizer: adjust the incoming signal to suit your system.
• Per-channel parametric EQ: one band per channel for additional fine-tuning.
• Flexible routing: select L, R or L+R and set polarity to 0° or 180° per channel.
• Three configurable presets: save and recall your preferred tuning profiles.
• Bluetooth app control: make adjustments from a compatible Android or iOS device without a laptop. The supplied information identifies Bluetooth for configuration, not as a confirmed music-streaming input.

Model & Processing

• Brand: Expert Electronics.
• Model: X4 AiR, also identified as X-4 AiR.
• Type: active digital audio processor.
• Channels: four.
• Color: black.
• Input equalizer: 15 bands.
• Parametric EQ: one band per channel.
• Channel routing: L / R / L+R.
• Crossover: included.
• Polarity inversion: 0° or 180°.
• Memory: three configurable presets.

Inputs & Outputs

• Inputs: 2 × RCA.
• Maximum input level: 4.00Vrms (+14dBu).
• Input impedance: 100kΩ.
• Output connection: RCA.
• Maximum output level: 3.5Vrms (+13dBu).
• Output impedance: 100Ω, as stated in this product's existing specifications.

Performance

• Frequency response: 10Hz–24kHz (−1dB).
• THD+N: less than 0.01%.
• Signal latency: less than 0.6ms.
• Listed resolution: 32-bit.
• Sampling rate: 96kHz.

Power, Size & Weight

• Power supply: 10–15VDC.
• Maximum current consumption: 300mA.
• Product dimensions: 110 × 150 × 43mm.
• Product weight stated in the original description: 0.30kg.

App Compatibility

The original listing identifies Android 4.3 or later and iOS app control. Check current app availability and operating-system requirements for your phone before purchase. Compatibility with every iOS version is not verified.

Installation & Package Information

This product is a signal processor, not a speaker power amplifier. Use compatible source equipment and amplification, and follow the manufacturer's wiring, power, crossover and setup instructions. Professional installation and tuning are recommended.

The listing identifies the X4 AiR processor; additional cables and installation accessories are not specified as included. The recorded shipping weight is 0.378kg, distinct from the source-listed 0.30kg product weight. Confirm the complete packed weight before shipment. The dimensions above describe the device, not its shipping carton.

No warranty duration is specified in the supplied product information. Confirm applicable manufacturer warranty and regional support terms before purchase.

Choose the X4 AiR for flexible, app-controlled tuning of a compatible four-channel car audio system.