Optimal Audio Sub 10 10" Subwoofer 250W £428.00 inc VAT
£356.67 ex VAT
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£875.00 ex VAT
Optimal Audio

Optimal Audio Sub 15 15" Subwoofer 500W

SKU: SUB15-B
Optimal Audio Sub 15 15″ Subwoofer 500W
Optimal Audio Sub 15 15″ Subwoofer 500W
Optimal Audio Sub 15 15″ Subwoofer 500W
Optimal Audio Sub 15 15″ Subwoofer 500W
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    £824.00 inc VAT
    £686.67 ex VAT

    17 available online
    FREE delivery by MondayOrder by 3pm
    Click & Collect tomorrow ›Collect from our warehouse in Wembley, London
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    3 Year Manufacturer Warranty Included
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    Optional Add-Ons
    Optimal Audio M8 Eye Bolt for Cuboid and Sub Loudspeakers M8 Eye Bolt
    £32.00 inc VAT
    £26.67 ex VAT
    Add to basket

    About this Product

    The Optimal Audio Sub 15 is a 15-inch passive bass-reflex subwoofer built for commercial installations that demand serious low-frequency output. With 500W power handling and 135 dB peak SPL, it delivers the kind of bass impact required in larger bars, clubs, live venues, and event spaces where the Sub 6 and Sub 10 would not provide sufficient headroom.

    15″
    Driver · Woofer
    500W
    Power Handling · Continuous
    135 dB
    Peak SPL · Peak output
    Bass-Reflex
    Design · Ported enclosure
    Features
    15″ driver with 500W continuous power handling for high-output bass reinforcement
    Bass-reflex design for efficient, extended low-frequency response
    135 dB peak SPL suits larger venues, clubs, and event spaces
    Plywood enclosure for durability and low-resonance performance
    M8 threaded inserts for flexible rigging and mounting
    Integrates with Optimal Audio SmartAmps and Zone controllers for complete system management
    Black finish as standard
    Specifications
    Driver 15″
    Type Passive subwoofer, bass-reflex
    Power Handling 500W
    Peak SPL 135 dB
    Enclosure Material Plywood
    Mounting M8 threaded inserts
    Colour Black
    SKU SUB15-B
    Compare the Range
    Optimal Audio Sub 15 15″ Subwoofer 500W
    Sub 15
    £824.00 inc VAT
    £686.67 ex VAT
    • 15" / 500W
    • Performance Passive
    Viewing Now
    Optimal Audio Sub 6 6″ Subwoofer 250W
    Sub 6 Black
    £341.00 inc VAT
    £284.17 ex VAT
    • 6" / 250W
    • Ultra Compact
    View →
    Optimal Audio Sub 10 10″ Subwoofer 250W
    Sub 10
    £428.00 inc VAT
    £356.67 ex VAT
    • 10" / 250W
    • Compact Passive
    View →
    Optimal Audio Sub 18 18″ Subwoofer 800W
    Sub 18
    £1,050.00 inc VAT
    £875.00 ex VAT
    • 18" / 800W
    • High Power Passive
    View →

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    More Information

    • Compact size
    • Powerful sub-bass support down to 40Hz (-10dB)
    • High power handling
    • 12 x M8, Inset bolts
    • Impact-resistant perforated steel grille
    • Finish: Black

    Manuals & Downloads

    PDFDatasheetPDF
    PDFUser Guide (Sub series)PDF

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    Frequently Asked Questions

    We’re a working touring and events production company founded in 2019 by sound engineers with many years of experience. 

    We’re very selective about the products we sell. Everything we supply we use ourselves on our tours, events and productions. This means we can offer a level of buying advice and aftersales support that can’t be beaten.

    We’re official dealers of brands such as Allen & Heath, Audio Technica and sE Electronics. We also stock other leading brands including Shure, Sennheiser, Martin Audio and Chauvet Professional.

    We accept Debit & Credit Cards, Apple Pay, Android Pay and Paypal. We also offer finance through Paypal Credit and Klarna.

    Business Customers can choose to receive a Proforma Invoice on checkout to pay by bank transfer.

    Yes. We run an AV production business and have AV Engineers on hand to provide advice and technical support during our operating hours.

    The quickest way to contact us for advice and support is through WhatsApp or Email.

    We're an AV production company as well as a retailer. Sharing staff and premises between the two allows us to keep our costs down.

    As AV Engineers ourselves, our mission is to provide high quality equipment to other AV Professionals at reasonable prices.

    Please see our Returns page for information on our returns policy and to start a return online.

    Generally if you change your mind you can return your item for a full refund within 14 days of purchase - as long as the product is unopened and unused. 

    If an item is faulty or damaged we will arrange collection free of charge and repair/replace it as quickly as possible.

    Estimated delivery times are shown on the product page. For items in stock we aim to get your order to you within 1 - 3 working days.

    Some items are ordered directly from the manufacturer. These may have longer lead times which will be estimated on the product page. Please contact us for a more accurate lead time.

    Yes. You can collect from our Production Space in Wembley, London. Please note that only a small range of our products are stored here, items showing as in stock may need to be transferred from our warehouse. If the item is in stock it will usually be ready to collect the same or next working day.

    Yes. We can install across the UK. 

    We've been involved in installation projects ranging from large capacity Music Venues to Coffee Shops, Churches and Council Offices.

    Please click here to contact us to learn more about our installation service.

    Guides on this kit