Soundmax SX-LX4125.4D 4 Ohms

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• 🟢 In stock: product available in our warehouse, ready to be shipped.
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🚚 Free delivery on orders over €49 with Chronopost Économique to a pickup point (estimated delivery time of 4 to 10 business days).

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📦 Preparation and shipping

In-stock products ordered before 12 p.m. are generally shipped the same day. After 12 p.m., shipping generally takes place on the next business day.

Pickups are available Monday through Friday, excluding holidays.

🚚 Our delivery methods

• Chronopost Économique pickup point: free delivery with purchases of €49 or more (4 to 10 business days).
• Chronopost 24h pickup point: fast delivery to a pickup point.
• 24h home delivery: our only home delivery option. Please note that this delivery method is not considered a guaranteed express delivery.

Delivery times begin once the carrier has accepted the package and are provided as estimates in business days.

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Some heavy or bulky packages may incur additional shipping and handling fees, which are automatically displayed in your cart.

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📞 Phone: 09 85 13 66 35

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• Tuesday to Saturday
• Mornings: 9:30 am – 12:00 pm
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The Sound Auto Concept Team

Highlights

• 125W RMS x 4 @ 4 Ohms – stable and clean power for front or rear stage systems
• High-efficiency Class D – low consumption, minimal heat, ideal for small spaces
• 190W RMS x 4 @ 2 Ohms / 370W RMS x 2 bridged @ 4 Ohms – total flexibility
• Frequency response 10 Hz – 45,000 Hz: absolute precision across the entire audio spectrum
• Adjustable HP (50–500 Hz) + LP (50–250 Hz) filters for precise active filtering
• High-Level input – direct OEM integration without an adapter

Description

The Soundmax SX-LX4125.4D is a 4-channel Class D amplifier designed for those seeking stable power, low heat generation, and great flexibility in a compact form factor. With 125W RMS per channel at 4 Ohms, it effectively drives front stage speakers, rear speakers, or moderate-sized midbass with control and clarity. Its ability to operate at 2 Ohms (190W/channel) and in bridged mode (2 x 370W) makes it suitable for many configurations.

• Adjustable high-pass filter: 50 – 500 Hz
• Adjustable low-pass filter: 50 – 250 Hz
• Input sensitivity: 0.25 – 8V – compatible with OEM and aftermarket sources
• High-Level input for direct connection to factory head units
• SNR 90 dB: clean sound without interference
• Available at Sound Auto Concept, your car audio specialist.

Technical Specifications

Why choose it?

• Compact Class D: maximum efficiency, minimal heat, easy installation anywhere
• 125W x 4 with the possibility to go up to 190W x 4 @ 2Ω or 370W x 2 bridged
• Adjustable HP + LP filters: perfect for active or passive configurations
• High-Level input: OEM integration without additional DSP or adapter

⚠️ IMPORTANT - INSTALLATION: It is IMPERATIVE to connect this amplifier to the impedance recommended by the manufacturer and to use the recommended wire gauge. For amplifiers over 2000W RMS, the vehicle's original battery is no longer sufficient. It is strongly advised to adapt the power supply (additional battery, reinforced alternator) to the amplifier's consumption to avoid any risk of damage and ensure optimal performance. WARNING: Any voltage drop below 12V can damage the product.