DS18 GEN-X 5-Channel Class D Amplifier 130 x 4 @ 4-Ohm + 900 x 1 W/ Bass Knob

• The G4000.5D balances power and finesse, enhancing any custom setup while ensuring equipment safety with advanced protective features
• Customize your audio experience with adjustable filters and a Remote Level Control Knob
• This amplifier provides professional-grade sound quality through rigorous testing with AP Instruments
• The G4000.5D elevates your audio system to new heights with meticulous craftsmanship
• Flexible Input Configuration Built-in input selector lets you switch between 2, 4, or 5-channel setups for easy system integration.

This Listing Includes:

• (1) DS18 G4000.5D 5-Channel Full-Range Class D Amplifier


• (1) Remote Bass Control / Crossover Knob

Product Overview:

Take full control of your car audio system with the DS18 G4000.5D, a powerful and compact 5-channel amplifier engineered for high-performance builds. Delivering a total of 4000 watts peak and up to 900 watts RMS on the subwoofer channel, this amp offers unmatched flexibility, clarity, and control. Whether you're running a full speaker system with a dedicated sub or planning a hybrid configuration, the G4000.5D gives you professional-grade power in one efficient, Class D package.

Designed with adjustable high-pass and low-pass filters, bass boost, and remote level control, this amp makes it easy to dial in your ideal sound. Featuring protection, clip, and power LED indicators, you'll stay informed at a glance. Built with surface-mount components and a sleek matte black finish, it’s ready to integrate seamlessly into any custom install.

Power Output:

• 4 x 130W @ 4 Ohm + 1 x 300W @ 4 Ohm Sub


• 4 x 220W @ 2 Ohm + 1 x 600W @ 2 Ohm Sub


• 2 x 420W @ 4 Ohm Bridged


• 1 x 900W @ 1 Ohm Sub

Key Features:

• Class D 5-Channel Full-Range Amplifier


• Frequency Response: 20Hz–20kHz


• Bass Boost: 0–12 dB fixed @ 45Hz


• HPF/LPF Filters (HPF: 10–250Hz | LPF: 50–250Hz)


• Infrasonic Filter: 10–50Hz


• Signal-to-Noise Ratio: >90 dB


• Total Harmonic Distortion (THD): 0.01%


• Input Selector: 2 / 4 / 5 Channel

Built-In Protection Systems:

• Short Circuit, Overload, Thermal, DC Output, and Voltage Protection


• LED Indicators for Power, Clip, and Protection Status

Design & Build:

• Sleek matte black finish


• Surface-mount component technology


• Remote bass knob included


• 4 AWG Power Terminals | External 160A Fuse Recommended

Dimensions & Weight:

• Length: 12.8"


• Width: 4.72"


• Height: 1.96"


• Weight: 2.2 kg (Approx. 4.85 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.

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.