4 Channel 400 watts 2 ohms Class D Compact Full Range Amplifier Marts Digital

• Powerful & Efficient Performance – The Marts Digital 4-Channel Full-Range Class D Amplifier delivers 400 watts RMS at 2 ohms, providing clean, dynamic sound with high efficiency and minimal power consumption.
• Compact & Versatile Design – Measuring just 6.75" x 5.75" x 2", this amplifier is perfect for tight spaces while still delivering powerful performance for mids, highs, and lows with exceptional clarity.
• Advanced Class D Technology – Designed for maximum efficiency with 91% power conversion, reducing heat output and power draw while maintaining high-quality sound reproduction.
• Customizable Sound Control – Features adjustable low-pass (35Hz-250KHz) and high-pass (15Hz-1KHz) crossovers, along with a bass boost of up to 12dB, allowing you to fine-tune your audio experience.
• Reliable & Durable Build – Engineered with 2-ohm stability, a 90dB signal-to-noise ratio, and 1% harmonic distortion, ensuring consistent, high-performance audio with minimal interference.

4 Channel 400 watts 2 ohms Class D Compact Full Range Amplifier Marts Digital

This listing includes:

• (1) 4 Channel 400 watts 2 ohms Class D Compact Full Range Amplifier Marts Digital

Upgrade your car audio system with the Marts Digital 4-Channel Full-Range Class D Amplifier, designed for power, efficiency, and versatility. Delivering 400 watts RMS at 2 ohms, this amplifier provides clean, dynamic sound with high efficiency, making it perfect for driving your speakers or mid-bass setup with precision.

Key Features:

• Full-range performance for mids, highs, and lows with clarity and power


• Class D technology for maximum efficiency and minimal heat output


• 4-channel design for powering multiple speakers or bridging for higher output


• 2-ohm stable for reliable performance with various speaker configurations

Specifications:

• Number of channels : 4


• Impedance: 2 Ohms


• Efficiency: 91%


• RMS Power (2 Ohm 14.4V): 150W RMS


• RMS Power (4 Ohm 14.4V): 100W RMS


• Supply Voltage: 9-16V


• Frequency Response: 35Hz-250KHz


• Low Pass Crossover: 35Hz-250KHz


• High Pass Crossover: 15Hz-1KHz


• Bass Boost: 0 to 12dB


• Signal to Noise Ratio: 90dB


• Harmonic Distortion: 1% THD


• Input Sensitivity: 400mV-6V

Dimensions:

• Length: 6.75"


• Width:  5.75"


• Height: 2"


• Weight: 3.40 lb

Recommended Wire Gauge & Fuse

• Positive - Negative Power Supply Cable: 4 AWG


• Output cables wire gauge : 8 AWG


• Remote Cable: 18 AWG


• Protection Fuse or Circuit Breaker: 150A

Take your sound system to the next level with the Marts Digital 4-Channel Amp—compact, powerful, and built for serious audio enthusiasts.

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
• Apple Pay
• Meta Pay (formerly Facebook Pay)
• Google Pay
• Shop Pay
• PayPal

International Payment Methods

• Bancontact
• iDEAL

Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

Why Can’t I Track My Order?

If you're having trouble tracking your order:

• Make sure you’ve received the shipping confirmation email with the tracking number.
• Log into your account on our website and use the “Check Your Order Status” button.
• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.