Loading... Please wait...
show / hide sidebar


Feature Products

  • Featured Products

    Take home the gear you want right now with flexible repayment plans to suit your budget and lifestyle.


    DD Audio 615 D2-D4 15" 1800W 600 Series Subwoofer

    DD Audio 615 D2-D4 15" 1800W 600 Series Subwoofer



    or make 4 interest-free payments of
    fortnightly with Afterpay

    9.52 KGS
    Shipping Cost:
    Free Shipping

    Information About This Item


    Great Entry Point for A Higher Performance System Design That Keeps the Vehicle as Close to Stock as Possible


    These subs will perform like a boss on as little as 300-600 Watts, meaning even multiple woofer systems can be driven with one moderate powered amplifier. This keeps electrical upgrades minimal with less added strain on the vehicle. With a high energy, double stack motor paired with a laminated triple layer poly cotton spider suspension the 600 Series works best with vented and multi-order enclosures.

    Note: Marine Grade products are not waterproof, and submersion or excessive moisture exposure may result in product failure. DD Audio Marine Grade products are not certified for saltwater environments.

    Redline Series Subwoofers

    REDLINE EROM Surround

    EROM (Extended Range Of Motion) surrounds, pioneered by DD in the early 90’s, allow our subs to have higher, more linear excursion with more cone area than subs using wider surround profiles. Simply put, this surround design allows our subwoofers to make more and better bass than other subs out there. In fact, we like this surround style so much that some variation of it is used on all levels of our subwoofers. The REDLINE EROM surround features new signature aesthetics including a red accent line pressed into the surround and an embossed REDLINE logo.

    Redline Series Subwoofers

    REDLINE Voice Coil

    Redline Series Subwoofers

    REDLINE Spider

    Spiders are the heart of a subwoofers suspension. Engineered to work with today’s music and system design trends, the multi-layer, multi-configuration REDLINE spiders achieve the perfect balance between control and compliance to deliver longer excursion and deeper bass.

    Redline Series Subwoofers

    REDLINE Cone

    Utilizing a unique glass fiber and natural pulp formula, treated with a moisture resistant matte finish, REDLINE cones are ultra strong, yet impressively lightweight.

    Redline Series Subwoofers

    Back Plate Coil Gap Venting

    The motor’s backplate features precision drilled vents in the coil gap for increased voice coil heat dissipation.

    extended pole piece

    Extended Pole Piece

    The REDLINE subs feature extended pole pieces for added high excursion control and improved heat dissipation.

    Redline Series Subwoofers

    DD Stamped Baskets

    The DD stamped basket uses rigid steel with a specialized coating resulting in a sturdy, durable, low resonance design. It features precision punched DD logos incorporated into lower venting section.

    Redline Series Subwoofers

    DD Cast Baskets

    DD cast baskets are custom designed for strength, stability, and precision. Using cast aluminum allows for added heat dissipation properties as well as high rigidity and low resonance. All these qualities combined, result in a basket that supports powerful high excursion designs. 

    Redline Series Subwoofers

    10-Gauge Push Terminals

    Push terminals allow for quick sturdy connections to the speaker wire coming from your amplifier. These terminals will accept up to 10-Guage speaker wire for delivering maximum power to the voice coil.


    • EROM surround
    • High-temp, 2.5”, voice coil
    • Triple Layer Deep bass, high excursion spider system
    • Unique glass fiber and natural pulp cone
    • Back plate coil gap venting
    • Extended pole piece
    • DD stamped steel basket (610-612)
    • DD cast basket (608)


    • Driver Size: 15"
    • Watts RMS: 300 - 600
    • Peak Power1800
    • VCD: 2.5
    • Impedance: D2 / D4
    • Piston Dia: in 12 3/4
    • FsHz 26.92
    • Qms: 3.965
    • Qes: 0.8204
    • Qts: 0.6797
    • Vas liters: 114.4
    • Xmech: mm 60
    • Xmax : mm 13
    • Frame OD: in 15 1/4
    • Frame OD w/Gasket: in 15 3/8
    • Mounting Diameter: in 13 7/8
    • Mounting Depth: in 7
    • Motor Diameter: in 6 1/2
    • Motor Depth: in 2 1/2
    • Woofer Displacement: cu ft 0.15
    • Sealed Enclosure: cu ft N/A
    • Ported Enclosure: cu ft 3.0 - 5.0
    • Shipping Weight: lbs 21

    Product Reviews

    Write Review

    This product hasn't received any reviews yet. Be the first to review this product!

    Returns Policy

    You may return most new, unopened items within 30 days of delivery for a full refund less a 20% re-stocking fee and any shipping costs which are unable to be retrieved. Frankies will pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

    The balance of the refund will be issued as a store credit for purchase of your next product or paid directly back into your PayPal account. You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

    To organise a return of an item, please contact the store the purchase was made from, either via phone, email or dropping into the store.


    Frankies offer $9 FLAT RATE Australia-wide shipping, no matter the number of items however, some larger/heavier items may incur a higher fee which will be noted during the checkout procedure. Frankies do not ship to PO Boxes, Parcel Lockers or addresses outside of Australia

    Find Similar Products by Category

    Find Similar Products by Category

    Back to Top