SoundQubed S4-100

SoundQubed S4-100 Four-Channel Class D Amplifier

The SoundQubed S4-100 gives compatible door speakers and pro-audio midranges dedicated amplifier power in a compact, high-efficiency Class D design. Run four channels for a speaker upgrade, or use its bridged configuration for suitable speakers or a pair of compatible subwoofers.

RMS Power by Configuration

• 4 ohms stereo: 100 watts × 4 channels
• 2 ohms stereo: 175 watts × 4 channels
• 4 ohms bridged: 370 watts × 2 channels, as listed in SoundQubed's specification table

The 175-watt rating is per channel at 2 ohms, not at every impedance. Match the connected speakers' power handling and final impedance to the configuration you plan to use. The listed minimum load is 2 ohms per channel in stereo or 4 ohms bridged; do not assume 2-ohm bridged operation.

Crossover Control for Your Speaker Setup

High-pass, low-pass, and band-pass filtering options help tailor the signal to the connected speakers. Use appropriate crossover settings for midranges and tweeters, or low-pass filtering for suitable subwoofers. Correct filtering and gain adjustment matter; filters alone do not guarantee protection from speaker damage.

Specifications

Plan Your Installation

Confirm speaker impedance, mounting clearance, power wiring, grounding, and circuit protection before installation. The listed 75A maximum-amperage figure is not automatically a recommendation for an external fuse. A separate subwoofer amplifier, such as a compatible SoundQubed S1-850 or Q1-1200.2, can be considered when you want the S4-100 dedicated to mids and highs; any additional amplifier is sold separately.

Local Installation in Killeen, Texas

Best Auto Sound & Security offers local installation in Killeen, Texas. Call 254-213-0501 for help matching the S4-100 to your speakers and planning wiring, integration, and tuning. Installation and any additional required parts are quoted separately.