Sundown Horizon 10" 600 Watt RMS Dual 4 Ohm Shallow Mount Subwoofer HZS-10

• SHALLOW MOUNT PERFORMANCE, Designed for tight installs with only 3.9 inch mounting depth, perfect for trucks, under seat enclosures, and space limited builds
• 600 WATTS RMS REAL POWER, Handles 600 watts RMS with a 2.5 inch black aluminum voice coil built for daily driven output and thermal stability
• DUAL 4 OHM CONFIGURATION, Flexible wiring options ideal for 1 ohm final loads when paired with a monoblock amplifier
• ADVANCED COOLING DESIGN, Vented motor gap and solid pole piece improve heat dissipation during extended high output sessions
• SUNDOWN BUILD QUALITY, High roll surround, progressive spider, stitched mini XL tinsel leads, and bolt through motor assembly for long term reliability

Sundown Horizon 10" 600 Watt RMS Dual 4 Ohm Shallow Mount Subwoofer HZS-10

This Listing Includes:

• (1) Sundown Audio Horizon HZS-10 10" Dual 4 Ohm Subwoofer

The Sundown Audio Horizon HZS-10 Dual 4 Ohm is a purpose built shallow mount 10 inch subwoofer designed for tight installations that still demand real bass performance. Rated at 600 watts RMS, this sub is engineered for compact enclosures behind truck seats, under rear decks, or in stealth builds where mounting depth is limited.

Equipped with a 2.5 inch black aluminum voice coil on a high temperature former, the HZS-10 maintains strong thermal stability during daily high output use. The high roll surround and progressive spider provide smooth, controlled excursion, while stitched mini XL tinsel leads increase long term durability.

The vented motor gap and solid pole piece improve cooling efficiency, and the bolt through motor assembly enhances mechanical strength. Optimized for ported enclosures but fully compatible with sealed designs, this shallow mount sub delivers true Sundown performance without requiring excessive depth.

Specifications:

• RMS Power Handling: 600 Watts RMS


• Voice Coil: 2.5" Black Aluminum Former


• Impedance: Dual 4 Ohm


• Motor Design: Vented Motor Gap with Solid Pole Piece


• Suspension: High Roll Surround with Progressive Spider


• Lead Wires: Stitched Mini XL Tinsel Leads


• Recommended Enclosure: Ported Preferred, Sealed Compatible

T S Parameters:

• Fs: 44.557 Hz


• Vas: 19.254 L


• Qes: 0.578


• Qms: 3.320


• Qts: 0.492


• BL: 20.281 NA


• Mms: 124.028 g


• Cms: 102.871 uM/N


• Sensitivity: 86.6 dB

Dimensions:

• Outer Diameter: 10.3"


• Cutout Diameter: 9.2"


• Mounting Depth: 3.9"


• Motor Diameter: 6.15"

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
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• 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.

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