ESB Harmony HR10US-A 10" Active Underseat Subwoofer & 5-Channel Amplifier Transform your factory audio system with a single compact upgrade. The ESB Harmony HR10US-A combines a powerful 10-inch active underseat subwoofer with a built-in 5-channel amplifier, delivering stronger bass, increased speaker power, and enhanced sound quality from one discreet package. Designed specifically for modern Android-based vehicle audio systems, the HR10US-A provides a simple Plug & Play solution that dramatically improves overall system performance without requiring bulky amplifiers or large subwoofer enclosures. At its core is a high-performance 10-inch subwoofer powered by a dedicated 200W RMS amplifier channel, delivering deep, controlled bass that adds impact and realism to every genre of music. In addition, four separate amplifier channels provide 35W RMS per channel to power your front and rear speakers, creating a complete audio upgrade from a single compact chassis. The built-in 4-band equaliser allows precise adjustment of Bass, Mid-Bass, Midrange and Treble frequencies, giving you far greater control over your vehicle's sound than most traditional underseat subwoofers. Its slim aluminium enclosure is designed to fit neatly beneath most vehicle seats, preserving valuable cabin and cargo space while providing excellent heat dissipation and long-term reliability. Whether you're upgrading a factory Android head unit or looking for a simple all-in-one audio solution, the HR10US-A delivers impressive power, tuning flexibility and installation convenience in one compact package. Features 10" Active Underseat Subwoofer Integrated 5-Channel Amplifier Android Plug & Play Connectivity 4 x 35W + 1 x 200W RMS Output 4 x 70W + 1 x 400W Maximum Power Compact underseat installation Built-in 4-Band Equaliser Adjustable Gain Control Variable Low-Pass Filter Adjustable Bass Boost Selectable Phase Control Auto Turn-On Function Wired Remote Control Included Durable Aluminium Enclosure Ideal for OEM and Android audio system upgrades Amplifier Power Front Channels: 4 x 35W RMS Subwoofer Channel: 200W RMS Total RMS Output: 340W RMS Maximum Power Front Channels: 4 x 70W Max Subwoofer Channel: 400W Max Total Maximum Power: 680W Max Sound Tuning Controls 4-Band EQ Adjustment Bass Mid-Bass Midrange Treble EQ Range: ±9dB Variable Bass Boost: 0 – 12dB Low-Pass Filter: 50Hz – 150Hz Phase Control: 0° – 180° Adjustable Input Gain Specifications Amplifier Class: Class AB Frequency Response: 20Hz – 22kHz Signal-to-Noise Ratio: 91dB Total Harmonic Distortion: 0.05% Sensitivity: 92dB Output Impedance: 2 Ohm Operating Voltage: 10V – 16V DC Input Gain Range: 0.15V – 6V High-Level Input Sensitivity: 0.2V – 11V Magnet Type: Ferrite Enclosure Material: Aluminium Dimensions: 245mm x 345mm x 77.5mm Perfect For Android head unit upgrades Factory audio enhancement Vehicles with limited installation space Customers wanting more bass and louder speakers Daily drivers, SUVs, utes and 4WDs All-in-one audio system upgrades What's Included ESB Harmony HR10US-A Active Underseat Subwoofer Integrated 5-Channel Amplifier Android Plug & Play Harness Wired Remote Bass Controller Installation Documentation Why Choose the HR10US-A? Unlike a traditional powered underseat subwoofer that only adds bass, the HR10US-A also amplifies your vehicle's speakers. This creates a complete audio upgrade with stronger bass, clearer vocals, improved dynamics and greater overall volume from a single compact unit.
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