- BLUETOOTH BUILT-IN CONTROL: Stream music and control your system directly from your phone with integrated Bluetooth, eliminating the need for a head unit in off-road, marine, and powersports builds
- IPX67 WATERPROOF DESIGN: Fully sealed against dust and water for extreme environments, making it perfect for boats, UTVs, motorcycles, and outdoor audio systems
- 1000 WATT MULTI-CHANNEL POWER: Delivers 1000W total system power with flexible configurations including 4-channel (250W x4 @2Ω), 2-channel bridge (500W x2), or 3-channel setups for mids/highs and subwoofer combos
- EXTREME BUILD QUALITY: Features a heavy-duty aluminum chassis, cast aluminum end panels, and sealed controls with protective plexi covers for rugged durability
- FLEXIBLE SYSTEM EXPANSION: Integrated RCA outputs allow daisy chaining multiple amplifiers for larger, high-output audio systems
- FULL SYSTEM TUNING CONTROL: Equipped with adjustable 12dB/oct high-pass and low-pass crossovers (50Hz–5kHz) for precise tuning of speakers and subwoofers
- HIGH AND LOW LEVEL INPUTS: Compatible with both aftermarket and factory systems for easy integration into any setup
- UPGRADED INTERNAL COMPONENTS: Enhanced MOSFETs, increased power capacitors, improved transformer, and upgraded PCB deliver stronger output, better efficiency, and improved thermal performance
1000W 4-Channel 2-Ohm Marine Grade Amplifier w/ BT DD Audio SX Series SX4.1000BT
This Listing Includes:
- (1) DD Audio 4-Ch Amplifier SX4.1000BT
Cut the cord and crank the volume. The DD Audio SX4.1000BT is a next-generation 4-channel Class D amplifier built for extreme environments and simple, powerful installs. With integrated Bluetooth streaming and system control, this amp eliminates the need for a traditional head unit, making it the perfect solution for boats, UTVs, motorcycles, and off-road builds.
Delivering a full 1000 watts of system power, the SX4.1000BT is designed to push through wind, engine noise, and open-air conditions with ease. Run it as a 4-channel setup for mids and highs, bridge it into a 2-channel powerhouse, or configure it as a 3-channel system to drive speakers and a subwoofer simultaneously.
Built to survive where others fail, the SX Series features an IPX67 waterproof rating, protecting against dust, water, and harsh outdoor environments. The rugged aluminum chassis, cast end panels, and sealed controls with protective plexi covers ensure long-term durability in marine and powersports applications.
Internally, this amp is upgraded with higher current MOSFETs, increased power capacitors, a more powerful transformer, and an enhanced PCB with improved thermal capacity. The result is stronger output, cleaner sound, and better reliability under heavy load.
Whether you're building a no-headunit system or expanding a multi-amp setup, the SX4.1000BT delivers serious performance in a compact, adventure-ready design.
Features
- IPX67 Rated Waterproof and Dustproof Design
- Bluetooth Audio Streaming and System Control
- 4 Channel Class D Amplifier
- 1000 Watts Total Power Output
- High-Level and RCA Inputs
- 12dB/Oct High-Pass and Low-Pass Crossovers
- Daisy Chain Capability via RCA Output
- Heavy Duty Aluminum Chassis with Protective Covers
- Designed for Marine, UTV, Motorcycle, and Off-Road Use
Specifications:
- Amplifier Class: Class D
- Channels: 4
- Total Power Output: 1000W
- RMS Power @ 4 Ohm: 150W x4
- RMS Power @ 2 Ohm: 250W x4
- Bridged Power @ 4 Ohm: 500W x2
- Frequency Response: 10Hz – 20kHz
- Operating Voltage: 9V – 16V
- Test Voltage: 14.4V
- Input Channels: 4
- Output Channels: 4
- Max Current Draw: 100A
- RCA Input Sensitivity: 0.4V – 10V
- High-Level Input Sensitivity: 0.4V – 10V
- Signal-to-Noise Ratio: >95 dB
- Damping Factor: >70
- THD: <1%
- High-Pass Filter: 50Hz – 5kHz
- Low-Pass Filter: 50Hz – 5kHz
- Power Wire Input: 8 AWG
- Speaker Wire Output: 16 AWG
Dimentions
- Width: 5.3"
- Length: 7"
- 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.
