Definitive Technology BP9040 Bipolar Tower (Pair)

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The BP9040 Bipolar Tower Speakers from Definitive Technology incorporates a plethora of innovative technologies including Dolby Atmos and DTS:X compatibility.

The BP9040 Bipolar Tower Speakers from Definitive Technology incorporates a plethora of innovative technologies in order to take your music listening experience to new heights of clarity and richness. This Dolby Atmos / DTS:X compatible unit features an intelligent bass control mechanism and dual bass radiators. Its small drivers are backed by Balanced Double Surround System (BDSS) technology to provide high performance, delivering an output equivalent to the bass quality of a larger driver. However, there is no compromise on sound dispersion and midrange definition.

The BP9040 Bipolar Tower comes equipped with a built-in 8” powerful subwoofer to ensure a listening experience like no other. Thanks to the patented Forward-Focused Bipolar Array (FFBP) technology, these floor standing speakers will deliver each and every note with absolute precision, offering a totally immersive music listening or movie watching experience. The unit has been provided with aluminium dome tweeters that work to generate a powerful yet deep, high frequency sound, so that you feel as if the artists are performing in the comfort of your own home. 

Definitive Technology has provided an LED backlit logo at the bottom front panel of BP9040. This logo serves a dual purpose. Firstly, it highlights the integrated subwoofer. Secondly, and more importantly, the LED lets you know if the speaker is receiving a signal. If the speakers do not receive any signal for more than 20 minutes, the light indicator automatically turns itself off or goes to standby mode. Operation can also be achieved manually.

The BP9040 Bipolar Tower Speaker comes encased in a totally inert cabinet. This strong and resonance-resistant housing has been constructed from premium aluminium. The unit comes to you in elegant black finish with an attractively designed non-removable transparent grille. The speaker achieves perfect stability thanks to a wide base created from aircraft grade aluminium. Included spikes and floor guides make sure that your BP9040 speakers stay safely positioned on a carpet as well as solid floor surfaces.

Backlit LED logo indicates whether or not signals are being received

Auto-standby mode after 20 minutes without signal reception

Dolby Atmos and DTS:X compatible

Spikes and floor guides included

More Information
BrandsDefinitive Technology
Product Specifications




Included Accessories:



x1 Removable Base

x4 Carpet Spikes

x4 Hard Floor Glides



Optional Accessories:



x1 A90 - High-Performance Height Speaker Module for Dolby Atmos/DTS:X - Sold Separate






Height with Base:



39" (99.06 cm)



Width with Base:



6" (15.24 cm)



Depth with Base:



13" (33.02 cm)






36 lbs (16.33 kg)



Base Height:



38.25" (97.16 cm)



Base Width:



13" (33.02 cm)



Base Depth:



11" (27.94 cm)



Base Material:



Aircraft Grade Aluminium



Levelling Mechanism:












Front Array Driver Enclosure Type:



Acoustically Tuned Vent



Front Array Driver Complement:



x1  1" (2.54 cm) d (Round) Aluminium Dome - Tweeter

x2  4.5" (11.43 cm) d (Round) - Midrange

x2  8" (20.32 cm) d (Round) - Bass Radiator

x1  8" (20.32 cm) d (Round) – Subwoofer



Rear Array Driver Enclosure Type:



Acoustically Tuned Vent



Rear Array Driver Complement:



x1  1" (2.54 cm) d (Round) Aluminium Dome - Tweeter

x1  4.5" (11.43 cm) d (Round) – Midrange






Total Frequency Response:



22 Hz → 40 kHz



Max Sensitivity (1 watt @ 1 meter):



92 dB






Amplifier Class



Class C


AVForums Editors Choice Awards 2018AVForums Editors Choice Awards 2018AVForums Highly Recommended Award - 9/10 AVForums score for "fantastic sound quality"
AVForums Editors Choice Awards 2019AVForums Editors Choice Awards 2019What impresses about this system isn't just the looks and performance, as good as they are, but the amount of thought that Def Tech has put into every aspect of the system's design.

Product Brochures

Definitive Technology BP9040 Bipolar Tower (Pair) Product Brochure
Definitive Technology BP9040 Bipolar Tower (Pair) Product Review
Definitive Technology BP9040 Bipolar Tower (Pair) Instruction Manual
Your Delivery:

Orders received before 1:00 pm* will be despatched the same day and can be delivered for next working day, (except bank holidays).  For you convenience you can choose multiple shipping options on the checkout page. We will also email with your tracking and dispatch information.

30 Day Returns Policy

HiFix is committed to selling quality products which we hope you will love, we do understand, however, that there maybe a time when you need to exchange or return something you have bought. We really do hope you are pleased with your purchase but should you wish to return anything bought from us, we will be happy to refund or exchange a product within 30 days.

NameSKUQtyLead time
Definitive Technology BP9040 Bipolar Tower (Pair) Black424361In Stock for Immediate Dispatch

Warranty information for Definitive Technology Speakers:

Definitive Technlogy Warranty Logo

Definitive Technology products are designed and manufactured to the highest quality standards. However, if something does go wrong with the product we are here to help. From your date of purchase your product is warranted against faulty materials or workmanship for a period of 60 months for all Speakers, 24 months for all electronic Products and 24 months for all Subwoofers.

This guarantee applies to all Definitive Technology Products including: 5.1 Speaker Systems, Sub Woofers, award winning Book Case and Floorstanding Speakers Providing you with peace of mind and the assurance of premium quality.

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