Sundown Horizon 1500W RMS Class D 1 Ohm Monoblock Amplifier HZ-1500

• 1500W RMS COMPACT POWERHOUSE: Delivers 1500 watts RMS at 1 ohm in a small footprint, perfect for tight installs without sacrificing output.
• 1-OHM STABLE PERFORMANCE: Designed to run safely at 1 ohm for maximum power and efficiency in real-world systems.
• SPACE-SAVING DESIGN: Slim chassis fits under seats, behind panels, or in compact builds where space is limited.
• HIGH-LEVEL INPUT WITH DC SENSE: Easy integration with factory radios using automatic turn-on—no remote wire needed.
• FULLY ADJUSTABLE SOUND CONTROL: Low pass (50–250Hz) and subsonic (10–50Hz) filters help dial in clean, tight bass.

Sundown Horizon 1500W RMS Class D 1 Ohm Monoblock Amplifier HZ-1500

This Listing Includes:

• (1) Horizon Series HZ-1500 Monoblock Amplifier


• (1) Wired Remote Bass Control

The HZ-1500 from Sundown Audio is built for serious bass systems that need real power without oversized equipment. Delivering up to 1,500 watts RMS at 1 ohm, this compact Class D monoblock pushes larger subwoofers or multi-sub setups with clean, controlled output that stays efficient and cool.

Designed for both factory and aftermarket installs, it includes high-level inputs with DC Sense turn-on for easy integration. Adjustable low pass and subsonic filters let you dial in tight, musical bass while protecting your subs from unwanted frequencies. A robust 4-way protection circuit keeps everything safe under heavy use, and the included wired remote bass knob gives instant control from the driver’s seat.

If you want hard-hitting bass in a space-saving design that’s built to last, the HZ-1500 delivers power the Sundown way.

Specifications:

• Tested RMS Power @ 14.4V


• RMS Power @ 14.4V: 1500 Watts 1 Ohms


• RMS Power @ 14.4V: 800 Watts @ 2 Ohms


• RMS Power @ 14.4V: 450 Watts @ 4 Ohms


• Amplifier Class: D Monoblock


• Low Pass Filter: 50Hz to 250Hz


• Subsonic Filter: 10Hz to 50Hz


• Input Sensitivity: Up to 6V


• Signal-to-Noise Ratio: 95dB


• Fuse Rating: 140A


• Protection: Thermal, Short Circuit, Over Voltage, DC Offset


• Remote Bass Knob: Included

Dimensions:

• Length: 11.25"


• Width: 4.63"


• Height: 2.2"


• Weight: 4.23 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.