- 780W MAX POWER OUTPUT – Delivers strong, clean power for full-range marine audio systems
- 4 CHANNEL CLASS D DESIGN – Efficient performance with reduced heat and compact size
- FLEXIBLE WIRING OPTIONS – Supports 4 ohm, 2 ohm stereo and bridged configurations
- BASS BOOST CONTROL – Up to 12dB boost to enhance low-end response
Audiopipe 4-Channel 780W 2-Ohm Class D Marine Amplifier APSR-4120GS
This listing includes:
- (1) Audiopipe APSR-4120GS Amplifier
Take your audio system onto the water with confidence using the Audiopipe APSR-4120GS Marine Amplifier. Designed for marine and outdoor environments, this 4-channel Class D amplifier delivers strong, efficient power in a compact footprint built to handle harsh conditions.
With up to 780 watts of total power, this amplifier provides clean, reliable output for speakers and mids while maintaining efficiency and low heat. Whether you are upgrading a boat, powersports setup, or outdoor system, the APSR-4120GS delivers consistent performance with flexible tuning options.
Built-in crossovers and adjustable bass boost give you control over your sound, allowing you to fine-tune your system for clarity, punch, and balance. Its compact size makes installation easy in tight spaces while still delivering serious output.
Perfect for marine and outdoor applications, this amplifier is made for users who need dependable performance without sacrificing sound quality.
Specifications:
- Output powers (RMS) @1% 1Khz 14.4V
- Stereo @4 ohms: 4 x 120 Watts @ 39A
- Stereo @2 ohms: 4 x 195 Watts @ 71A
- Mono @4 ohms: 2 x 390 Watts @ 71A
- Frequency response: -3db - 10Hz~20KHz
- Crossover Range High and Low Pass: 30Hz ~ 300Hz 12dB / Octave
- Bass boost: 0 ~ 12dB @ 27Hz ~ 110Hz
- S/N Ratio (A wtg): >85dB
- Input Sensitivity: 0.2V – 6V
- Overvolt Protection: 16.5V
- Under-voltage protection: 8.5V
Dimensions:
- Length: 11.1"
- Width: 8.4"
- Height: 2.5"
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.
