150W RMS 8" Under the Seat Compact Powered Subwoofer w/ Molex Bass Control Knob

• Award-Winning Design: Recognized by the International Consumer Electronics Show (CES) for its innovation and engineering excellence.
• Seamless Setup: Enjoy hassle-free installation with quick-connect plugs, pre-measured wiring harnesses, and secure Velcro mounting straps.
• Space-Saving Solution: Perfect for tight spaces under seats, in trunks, or behind the rear bench, making it ideal for compact vehicles.
• Perfect Bass Balance: Achieve precise audio clarity with adjustable controls and a remote bass knob for on-the-fly tuning.

Kicker 150W RMS 8" Under the Seat Compact Powered Subwoofer w/ Molex Bass Control Knob - 51HS8

This Listing Includes:

• (1) Kicker 150W RMS 8" Under the Seat Compact Powered Subwoofer 


• (1) Molex Bass Control Knob 


• (1) Wiring Harness Included

Experience legendary KICKER performance in a compact design with the Kicker 51HS8 Compact Powered Subwoofer. This CES Innovations Award-winning subwoofer combines clear, ground-pounding bass with the convenience of a compact, under-seat installation.

Key Features:

• Compact Design: At just over 3" tall and nearly 14" long, it fits tight spaces without compromising sound.


• Built-In 150W Amplifier: Powers the 8" subwoofer for deep, thumping bass.


• Plug-and-Play Convenience: Includes quick-connect Molex power plug and Velcro nylon straps for secure and easy installation.


• Remote Bass Control: Fine-tune bass levels from the driver’s seat.


• Advanced Audio Controls: Adjustable low-pass crossover, variable +6dB bass boost, and phase-cancelling switch for optimized output.


• Universal Integration: High- and low-level inputs compatible with factory or aftermarket head units.

Specifications:

• Subwoofer Size: 8" (20 cm)


• RMS Power: 150 watts (14.4V)


• Frequency Response: 25–120 Hz


• Phase Switch: 0 Degrees / 180 Degrees


• KickEQ Bass Boost: Variable to +6 dB @ 40 Hz

Crossover: 

• 12 dB/octave low-pass (50–120 Hz),


• 24 dB/octave high-pass (25 Hz)

Input Sensitivity: 

• Low level: 125 mV–5 V 


• High level: 250 mV–10 V

Dimensions:

• Depth: 13-7/8" (35.2 cm)


• Height: 3-1/8" (7.94 cm)


• Width: 9-3/8" (23.8 cm)


• Weight: 9.4 lbs (4.3 kg)
  
  

Included Wiring Harness:

• 17' power input


• 8' speaker-level input


• 2' ground


• 2' remote turn-on
  
  

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.