4 Ch Class A/B 1200 W RMS 2 Ohm Amplifier w/ VM-1 Voltmeter SMD-300.4AB DS18

• Powerful 4-Channel Performance – Delivers 200W RMS per channel at 4 ohms and 300W at 2 ohms, with up to 600W bridged at 4 ohms for enhanced sound output.
• Advanced Tuning Flexibility – Features selectable HPF/Full/LPF crossovers (50Hz-2KHz) and 0-9dB bass boost (30Hz-60Hz) for precise audio adjustments.
• Robust Protection Systems – Includes thermal, overload, short circuit, voltage input, and DC output protections to ensure safe and reliable operation.
• Integrated RGB Lighting with IR Control – Comes with a front acrylic window, digital RGB LED lighting, and an IR remote for easy customization of color patterns.
• Professional-Grade Components – Built with a heavy-duty Korean board, 0 AWG power inputs, Tiffany RCA connectors, and a VM-1 voltmeter display for performance monitoring.

4 Ch Class A/B 1200 W RMS 2 Ohm Amplifier w/ VM-1 Voltmeter SMD-300.4AB DS18

This Listing Includes:

• (1) 4-Ch Class AB 2-Ohm 1200w RMS Amplifier SMD-300.4AB with VM-1 Voltmeter LED DS18


• Remote level knob with clip indicator (metal case)


• IR remote control for LED patterns and colors

The SMD-300.4AB amplifier is engineered for superior audio performance with an analog Class AB circuit design, ensuring a smooth and accurate sound experience. Delivering 200 watts RMS per channel at 4 ohms, it pushes up to 300 watts at 2 ohms and offers 600 watts bridged at 4 ohms. This amplifier offers professional-grade tuning flexibility through high-pass, low-pass, and full-range crossover options, making it a perfect fit for full-range speakers or subs. Built with heavy-duty components and a Korean circuit board, it ensures durability and consistent performance under any condition.

Key Features:

• Class AB Analog Amplifier for superior sound reproduction


• Selectable HPF/Full/LPF Crossover options for versatile system tuning (50Hz-2KHz)


• 0-9dB Bass Boost to enhance low-end frequencies (30Hz-60Hz)


• Built-in Cooling Fan to maintain optimal temperature under load


• Clipping Protection and RGB Lighting for safe operation and style


• Remote Level Knob with Clip Indicator in a metal case for precise volume control


• Tiffany RCA Connectors for high-quality signal input


• VM-1 Voltmeter Display for real-time monitoring


• IR Remote Control for LED lighting adjustments

Specifications:

• 200W x 4 @ 4 Ohms


• 300W x 4 @ 2 Ohms


• 600W x 2 @ 4 Ohm Bridge


• Frequency Response: 10Hz – 24KHz


• Signal-to-Noise Ratio: >98dB


• Efficiency @ 4 Ohm: >62%


• Damping Factor: 160


• Input Impedance: 22K Ohm


• Channel Separation: >50dB


• Total Harmonic Distortion (THD): 0.10%


• Low-Level Input Range: 200mV – 6V


• High-Level Input: Not Available


• Selectable Crossover: HPF / FULL / LPF


• Crossover Filter Range: 50Hz – 2KHz


• Bass Boost Range: 0 ~ 9dB


• Bass Boost Frequency: 30Hz – 60Hz


• Phase Selector: 0 ~ 180


• Thermal Protection


• Overload Protection


• DC Output Protection


• Short Circuit Protection


• Voltage Input Protection

Measurements:

• Overall Length: 14.2" / 362mm


• Overall Width: 9.15" / 232mm


• Overall Height: 3" / 76mm


• Heatsink Length: 12.6" / 320mm


• Gross Unit Weight: 10 lbs / 4.53 kg

The SMD-300.4AB amplifier offers a perfect combination of power, sound clarity, and advanced protection features. With a 0 AWG power input terminal, professional-grade Tiffany RCA connectors, and metal adjustment knobs, this amp ensures both reliability and ease of use. Whether driving subwoofers or high-end speakers, it provides the precision and performance needed for high-quality sound systems. The integrated voltmeter, cooling fan, and IR remote-controlled LED lighting make this amplifier a stylish and functional addition to any car audio setup.

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.

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• Make sure you’ve received the shipping confirmation email with the tracking number.
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• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.