- PREMIUM MONOBLOCK BASS POWER: The Synergy Mobile Audio SYN 3.5K mono Class D amplifier is engineered with high-end circuit design and premium internal components to deliver reliable, high-output bass performance.
- AUDIOPHILE-GRADE INTERNAL COMPONENTS: Built with South Korean Samyoung capacitors, Texas Instruments op-amps and ICs, German WIMA film and filter capacitors, and Fairchild chipsets for low distortion, efficiency, and long-term durability.
- POWERFUL REAL-WORLD RMS OUTPUT: Delivers 3,500W RMS at 1 ohm @ 14.4V and up to 5,025W RMS at 16V, making it ideal for high-power subwoofer systems in daily drivers, demo builds, and SPL competition vehicles.
- FULL ACTIVE BASS CONTROL: Adjustable subsonic (10Hz–50Hz) and low-pass (35Hz–250Hz) filters combined with a high damping factor (>200) provide tight, controlled bass across a wide range of enclosures.
- OVERBUILT CONNECTIONS & THERMAL DESIGN: Features dual 0-gauge power and ground terminals, nickel-plated 8-gauge speaker outputs, locking Tiffany RCA connections, multiple power transformers, and a high-mass aluminum heat sink for stable operation under extreme load.
Synergy Audio SYN 3.5K Mono 3500 Watts 1Ohm Class D Vehicle Amplifier SYN3.5K
This Listing Includes:
- (1) Synergy Audio Mono Class D Amplifier SYN 3.5K
- Remote gain control with power & clipping indicators
- Owner’s manual
The Synergy Mobile Audio SYN Series monoblock amplifiers are engineered to deliver powerful, reliable bass performance using high-end circuit design, precision manufacturing, and premium internal components. Built with long-term durability and efficiency in mind, the SYN lineup balances real-world output with refined control.
The SYN 3.5K mono amplifier is constructed using South Korean-made Samyoung capacitors, Texas Instruments op-amps and ICs, German-manufactured WIMA film and filter capacitors, and Fairchild chipsets. This carefully selected component mix ensures excellent signal integrity, low distortion, and dependable performance under heavy load.
Designed to perform equally well in daily-driven vehicles, ground-pounding demo systems, and SPL competition builds, the SYN 3.5K offers high current delivery, extended voltage capability, and precise bass control. With stability at low impedances and 16V support, this amplifier is built to push demanding subwoofer systems with confidence.
Features
- High-end circuit design, engineering, and manufacturing
- Premium internal components for long-term reliability
- Full active bass control for precise tuning
- 16V capable for competition and upgraded electrical systems
- Overbuilt power supply and output section
- Nickel-plated locking Tiffany RCA inputs and outputs
- High-mass aluminum heat sink for efficient thermal dissipation
- Intelligent multi-way protection circuitry
Specifications:
- 3,500W @ 1 Ohm @ 14.4V
- 2,600W @ 2 Ohm @ 14.4V
- 1,500W @ 4 Ohm @ 14.4V
- 5,025W @ 1 Ohm @ 16V
- Frequency Response: 10Hz – 250Hz
- Signal-to-Noise Ratio: >85dB
- Damping Factor: >200
- Subsonic Filter: 10Hz – 50Hz
- Low-Pass Filter: 35Hz – 250Hz
- Input Sensitivity: 6V – 200mV
- Dual 0 Gauge power and ground terminals
- Nickel-plated 8-gauge speaker outputs
- (4) high-current power transformers
- Heavy-duty 2oz double-sided PCB with thick solid copper traces
- Custom high-mass, thermally optimized aluminum heat sink
Dimensions:
- Length: 19.69"
- Width: 9.45"
- Height: 2.44"
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.
