- 1000 WATT MARINE POWER: Delivers 1000W total output with 150W x4 @4Ω, 250W x4 @2Ω, or 500W x2 bridged for flexible system configurations
- IPX67 WATERPROOF DESIGN: Dust-tight and water-resistant construction built for marine, UTV, motorcycle, and off-road environments
- FLEXIBLE SYSTEM SETUPS: Run 4-channel full range, bridge to 2-channel, or configure a 3-channel system with speakers and subwoofer
- CLEAN SIGNAL INTEGRATION: Equipped with both RCA low-level and high-level inputs for seamless integration with factory or aftermarket systems
- BUILT FOR HARSH CONDITIONS: Heavyweight aluminum chassis with cast end panels and bottom plate for durability and heat management
- FULL TUNING CONTROL: Adjustable 12dB/oct high-pass and low-pass crossovers (50Hz–5kHz) for precise system tuning
- COMPACT HIGH OUTPUT DESIGN: Small footprint with high efficiency Class D performance for tight installs and custom builds
- READY FOR DEMANDING SYSTEMS: 2-ohm stable stereo operation with strong current capability for high output audio setups
DD Audio 1000W 4-Channel 2-Ohm Marine Grade Amplifier SX Series SX4.1000
This Listing Includes:
- (1) DD Audio SX4.1000 4-Channel Amplifier
Built to thrive where standard amps tap out, the DD Audio SX4.1000 is a rugged 4-channel marine-grade amplifier engineered for high output and real-world durability. Delivering a full 1000 watts of clean, controlled power, this Class D amp is designed to push through wind, engine noise, and open-air environments with authority.
Rated IPX67, the SX4.1000 is sealed against dust and water intrusion, making it ideal for boats, UTVs, motorcycles, and off-road builds exposed to moisture and harsh conditions. The heavy-duty aluminum chassis, cast end panels, and reinforced construction ensure long-term reliability without sacrificing performance.
Flexible power configurations let you run 4-channel full-range systems, bridge into a 2-channel setup, or build a 3-channel system with dedicated subwoofer output. With high-level and RCA inputs, plus adjustable 12dB/oct crossovers, the SX4.1000 integrates easily into factory or aftermarket systems while giving you full control over your sound.
If you need compact size, serious output, and marine-ready toughness, the SX4.1000 delivers clean power wherever your system goes.
Features
- IPX67 Rated: Dust Tight and High Water Resistance
- High-Level Inputs and 12dB/Oct High Pass/Low Pass crossovers
- Heavyweight DD Aluminum Chassis
- Aluminum End Panels and Bottom Panel
- 8 AWG Power Terminals
- Marine Grade build for moderate moisture exposure
Specifications:
- Operating Voltage: 9 - 16
- Test Voltage: 14.4
- Input Channel(s): 4
- Output Channel(s): 4
- Continuous Wattage @4ohm: 4 x 150 Watts
- Continuous Wattage @2ohm: 4 x 250 Watts / 2 x 500 Watts
- Max Current Draw: 100 Amps
- RCA Input Voltage Sensitivity: 10 - 0.4
- High-Level Input Voltage Sensitivity: 10 - 0.4
- RCA Input S/N: > 85
- Damping Factor: > 70
- THD: < 0.1%
- Frequency Response: 10 - 20 kHz
- High Pass Filter: 50 - 5k Hz
- Low-Pass Filter: 50 - 5k Hz
- Power Wire Gauge: 8
- Speaker Wire Gauge: 16
- Item Weight (Lbs.): 2.89
Dimensions:
- Length: 7"
- Width: 4.5"
- Depth: 2"
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
Bank Transfers
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.
