4000W 4-Channel 2-Ohm Class-D Full Range Amplifier DD Audio SS Series / SS4.3000

• Immense Power Output – The DD Audio SS4.3000 amplifier delivers a massive 1000 watts per channel at 2 ohms, providing pro-level audio clarity and volume for powerful mids and highs in your system.
• Dual Toroidal Power Supply – Built with a high-efficiency, low-noise twin toroidal design, ensuring optimal power delivery and minimal distortion (THD < 1%) even under extreme conditions.
• Advanced Sound Control – Easily customize your setup with adjustable 12dB/oct high-pass and low-pass crossovers, plus bandpass capability for maximum control over high-end speakers.
• Heavy-Duty Aluminum Heatsink – Featuring a DD AUDIO exclusive heatsink design with increased thermal mass and fin area to maintain performance and protect the amplifier in demanding situations.
• Remote Gain Control & Easy Installation – Includes remote gain control for on-the-fly adjustments, with convenient set screw power and speaker terminals that accommodate up to 4 AWG power wires.

4000W 4-Channel 2-Ohm Class-D Full Range Amplifier DD Audio SS Series / SS4.3000

This Listing Includes:

• (1) SS4.3000 Amplifier


• (1) Remote Gain Control Knob / Voltage Display

Description:

The SS4.3000 amplifier is designed to bring out the best in pro audio and bass-heavy systems, powering mids and highs with an astounding 1000 watts per channel at 2 ohms. Engineered with a high-speed, Class D design and a robust power supply, it achieves a superior signal-to-noise ratio, impressive channel separation, and minimal THD+N, resulting in clear, powerful sound even at peak performance.

The amplifier’s dual toroidal power supply and high-efficiency circuit design are enclosed in DD’s signature heatsink with extra thermal mass and fin area for maximum cooling, ensuring reliable operation under extreme conditions. Configurable preamp settings include separate low-pass and high-pass filters with bandpass capability, while a remote gain control on channels 3/4 offers convenient tuning adjustments.

Features:

• High-Level Inputs


• 12dB/Oct High-Pass/Low-Pass Crossovers


• Dual Toroidal Power Supply


• Durable DD Aluminum Chassis


• Set Screw Power and Speaker Terminals


• Remote Gain Control Included for Channels 3/4


• 4 AWG Power Terminals

Specifications:

• Operating Voltage: 9 - 16V


• Test Voltage: 14.4V


• Output Channels: 4


• Continuous Power @4 Ohms: 650W x 4


• Continuous Power @2 Ohms: 1000W x 4


• Max Current Draw: 300 Amps


• RCA Input Voltage Sensitivity: 6V - 0.25V


• RCA Input S/N Ratio: > 95 dB


• Damping Factor: > 100


• THD: < 1.0%


• Frequency Response: 20Hz - 20kHz


• High-Pass Filter: 20Hz - 5kHz


• Low-Pass Filter: 50Hz - 5kHz


• Remote Control: Included


• Power Wire Gauge: 4 AWG


• Speaker Wire Gauge: 10 AWG

Measurements:

• Dimensions (Inches): 11.25 x 7.3 x 2.4


• Dimensions (MM): 286 x 185 x 60


• Shipping Weight: 5 lbs

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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