DD Audio 8" Dual 4 Ohm 800W Peak/400W RMS Hi-Def Tuned Subwoofer 1108- — Big Jeff Audio Dealer Platform
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  • Engineered for high efficiency and superb audio performance
  • Made in the USA with the highest grade components
  • Customizable build options for a personalized touch
  • Hi-Def Tuned suspension ideal for various enclosure types
  • Optimal performance in both sealed and small vented enclosures

DD Audio 8" Dual 4 Ohm 800W Peak/400W RMS Hi-Def Tuned Subwoofer 1108-D4

This Listing Includes: 

  • (1) DD Audio 1108 8 Inch Hi-Def Tuned Subwoofer

The 1108 is a key offering in DD Audio's 1100 Series, known for its high efficiency and remarkable sound quality. Crafted in the USA using the highest grade components available, these subwoofers are customizable with various build options. The 1108 is specifically designed with Hi-Def Tuned suspensions, making it ideal for sealed or small vented enclosures.


  • Speaker Size: 8 Inches

  • RMS Power: 200 - 400 Watts

  • Peak Power: 800 Watts

  • Impedance: Dual 4 Ohm

  • Voice Coil Diameter: 2 Inches

  • Piston Diameter: 6.5 Inches

  • Fs: 45 Hz

  • Qms: 5.731

  • Qes: 0.696

  • Qts: 0.621

  • Vas: 4.957 Liters

  • dBSPL: 81

  • Xmech: 64 MM

  • Xmax: 13.5 MM

  • Frame Outer Diameter: 8.25 Inches

  • Frame OD w/Gasket: 8.5 Inches

  • Mounting Diameter: 7.125 Inches

  • Mounting Depth: 5 Inches

  • Motor Diameter: 5.75 Inches

  • Motor Depth: 2.35 Inches

  • Magnet Weight: 90 Oz

  • Woofer Displacement: 0.06 CuFt

  • Recommended Sealed Enclosure: 0.35 - 0.75 CuFt

  • Recommended Ported Enclosure: 0.35 - 1.0 CuFt


  • High-grade components for exceptional sound quality.

  • Customizable build options to tailor to specific preferences.

  • Hi-Def Tuned suspensions ideal for sealed or small vented enclosures.

  • Compact design suitable for a variety of setups.

  • Made in the USA, ensuring quality and durability.

Payment Information


We accept PayPal for all ebay orders. You can use your credit through PayPal as all major credit card are accepted by PayPal.

We accept PayPal for all international orders, your address must be verified with PayPal.

We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

When you click on the Buy it Now button you are entering into a
contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

Shipping is available only to PayPal verified addresses. When making
payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


If you have not received your package, but the tracking information shows that it was delivered,
please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.