icon: Free Tracked Delivery
Free Tracked Delivery
On orders over £50
icon: Price Match Promise
Price Match Promise
Read our guarantee
icon: Trading Online
Trading Online
For over 20 years!
icon: Excellent Reviews
Excellent Reviews
Check our latest reviews
Need help?
Est. 2002
Enlarge image
For fast dispatch
In stock For fast dispatch
Free UK Delivery
Delivery Free UK Delivery
Returns
Returns Hassle-free returns mean that you can shop in confidence that if you need to return an item, it's easy.
This product comes with FREE UK Saver Delivery!

QTX QT 15" & 18" Subwoofer Bass Boxes - 8 Ohm

In stock
New
Special Offer
Sold out
Pre-order
Code: 170.750UK
RRP: £0.00
Our price:
from from £150.00 inc. VAT
£125.00 ex. Vat


Order within
D H M S
Dispatches
Today
Next Day Delivery
Tomorrow (£11.99)
Visa
Mastercard
American Express
PayPal
Apple Pay
Google Pay
Please complete the options highlighted in red.
  • Standard Delivery - Fri 20th Jun - Mon 23rd Jun
    £6.50
  • UK Saver Delivery - Mon 23rd Jun - Fri 27th Jun
    £3.95 or FREE when you spend £50.00
More delivery options will be available in the checkout
Need any help?
Delivery
Returns
Need any help?
Ask any question you need help with and we will get back to you
Delivery
Free tracked delivery on all orders over £50.
Full delivery details
Returns
Hassle-free returns mean that you can shop in confidence that if you need to return an item, it's easy.
Read our returns policy

QTX QT 15" & 18" Subwoofer Bass Boxes

Overview

The QTX QT 15" and 18" Subwoofer Bass Boxes are rugged, high-performance passive subwoofers engineered for mobile DJs, live performers, and use in small to mid-sized venues. Designed to deliver punchy, deep bass, these subwoofers are ideal companions to full-range PA systems, providing low-end reinforcement that enhances sound clarity and impact.

Design and Build Quality

Both the 15" and 18" models feature a durable carpet-covered cabinet with a front-facing steel grille for speaker protection. Reinforced corners and integrated side handles ensure these enclosures withstand the rigours of transport and frequent use. The robust wooden construction reduces resonance, offering a cleaner bass response. Each unit includes a top-mounted 35mm pole socket for convenient satellite speaker mounting.

Key Technologies and Features

Specifications

Specification Details
Power Source Passive (requires external amplifier)
Woofer Size 15" (QT15) / 18" (QT18)
Power Handling 300W RMS (QT15) / 250W RMS (QT18)
Impedance 8 Ohms
Frequency Response 40 Hz - 500 Hz (typical)
Connectors 2 x Speakon NL4 / binding posts
Mounting 35mm top hat
Weight QT15: approx. 17kg / QT18: approx. 20kg

Performance and User Experience

The QTX QT subwoofer series delivers warm, authoritative low frequencies that significantly enhance live performances and recorded music playback. The passive design offers amplifier flexibility, while the rugged build quality makes them a dependable choice for regular gigging. They are well-suited for DJ setups, bands, and permanent venue installations.

Q&A Section

Q: Are these subwoofers active or passive?

A: Both the QT15 and QT18 are passive subwoofers, requiring an external amplifier.

Q: Can these be used with any PA system?

A: Yes, they are compatible with most PA systems that support 8-ohm passive subwoofers and provide adequate power output.

Q: What cables are required?

A: You can use Speakon NL4 cables or standard speaker wires with binding posts.

Q: Is there a built-in crossover?

A: Yes, an internal low-pass crossover allows clean bass output without external processing.

Q: Are these suitable for outdoor use?

A: While they can be used outdoors, they should be protected from moisture and rain as they are not weatherproof.


Previous product: Microphone Cable Neutrik® XLR Socket - 6.3mm Mono Jack Plug <b>Various Lengths</b>
Microphone Cable Neutrik® XLR Socket - 6.3mm Mono Jack Plug <b>Various Lengths</b>
Copyright © 2025 H7 Media Systems Ltd (Company Reg. 05027639)
categories

loading
Sign up to our newsletter
Join our newsletter banner image
Subscribe to our newsletter to receive our latest news, discounts and promotions. Unsubscribe at any time.
Your basket was updated...
Just added product image
Product name
Code: XXXX
£0.00 + VAT
You also added:
Checkout Now
Continue Shopping
close
Englarged image
Need Help?
Need Help?
Enter your details and we will get back to you.