£ 810.00 GBP

Lowther EX4

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Lowther EX4 Driver Unit
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Lowther EX4

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£ 810.00 GBP
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(available as a single mono or stereo pair)
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The EX4 is the largest unit from our fantastic EX series of speakers. Like all our EX series these 8" full range drivers fit into every Lowther cabinet design there is. So you can enjoy superior sound production, no matter which cabinet you choose. It really is audio perfection for everyone.

Every Lowther drive unit comes with a complementary digital downloaded plan. Please enter your plan of choice at the checkout.

Lowther Plans are free when you buy a new Lowther Drive Unit. Please see below to find out which drive units will fit this cabinet.

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Estimated Price:
£ 810.00 GBP
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EX Series Speaker Drive Units

Superior sound reproduction for everyone

The EX Series has been designed to give every Lowther enthusiast and audiophile a superior sound experience, no matter which Lowther cabinet option they’re using.

Whether you’re a Lowther maker, a Lowther for Life member, or an audiophile looking to try something new, the EX Series offers the best full-range drive units you’ll find on the market.

Precision tuning, for the perfect balance

Each model in the EX Series contains an acoustic chamber, precisely tuned to maximise its performance abilities.

Precision really is the focus of the entire EX Series. The drive units’ cone assemblies have a fine pressure balance with the acoustic chamber at the rear of the unit, and a phase equalizer at the front.

This means that only bass frequencies pass through the acoustic chamber, avoiding any bass and mid-range frequency confusion. The result? The purest sound possible. No shout, no fluctuations, just crystal clear audio.

Inner cone isolation for flawless audio

Both the DX Series and the EX Series have the inner speaker cone isolated from the outer, and we’ve also added a reverse roll to the rim of their inner cones. So, rather than the two cones working in unison at certain frequencies, you can now enjoy one smooth sound.

Far more detail is captured and reproduced, so that live listening experience doesn’t feel quite so far away. With complete diaphragm control, our speaker drivers offer the latest in listening experience.

Excellence awaits

The EX Series might be our best range yet. Why? Well, it’s simple. We love the fact that its drive units fit into every Lowther cabinet design out there, without any modifications. So you can experience the Lowther sound just as it should be - authentic and crystal clear.

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Veneer Selection
In the White
(Standard)
American Walnut
(Standard)
Figured Maple (Standard)
Crown Ash (Standard)
Oak (Standard)
Sapele (Premium)
American Cherry (Premium)
Bamboo (Premium)
Zibrano (Premium)
Sycamore (Premium)
Eucalyptus Figured (Premium)
BubingA (Premium)
Recommended Front Drive Units
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Recommended Top Drive Units
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All Compatible Front Drive Units
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Graphs
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All our loudspeakers are analysed in our listening room using REW acoustics software. The aim is to show a graphic comparison between each Lowther enclosure on demonstration with the recommended drive unit installed for that type of cabinet.
Technical Specifications
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  • Overall diameter 22.5
  • Overall Depth 8.5 cm
  • Depth from Rear of Mounting Frame 7.6 cm
  • PCD Mounting Centres 20.8 cm
  • Baffle hole cut-out 19 cm
  • Magnet Ring Diameter 9.0 cm
  • Voice coil diameter 3.9 cm
  • Voice coil impedance (nominal) 4, 8 or 15 ohm
  • Air gap width 1.0 mm
  • Air gap height 5.5 mm
  • Magnet type 'Hi-Ferric'™ Hi-Ferric'™ Rare Earth Neodymium
  • Flux density (1 Tesla=10,000 gauss) 2.2 Tesla
  • Diaphragm Twin-paper
  • Frequency response 30 Hz - 22.5 kHz
  • Maximum voice coil travel ± 1 mm
  • Shipping weight 4.0 kg
  • DC Resistance of Voice Coil Re 7.4 ohms
  • Free Air Resonance Fo 45 Hz
  • Emission Piston Area Sd 0.021M²
  • Equivalent Volume Suspension Vas 62.908 Ltrs
  • Suspension Compliance Cms 1005 u M/N
  • Mass of Cone Mmd 11.0 g
  • Mass of Moving Parts Mms 12.75 g
  • Force Factor Bl 10.233 T-M
  • Mechanical Q Factor Qms 3.781
  • Electrical Q Factor Qes 0.248
  • Total Q Factor Qts 0.233
  • Voice Coil Inductance @ 1 kHz Le 28.071 uH
  • Reference Efficiency No 2.154%
  • Sound Pressure Level SPL 95.351 Db
Cabinet Recommendations
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Our EX range is designed to work well in all our cabinet designs. However, custom cabinet designs with an open baffle makes the EX a perfect companion thanks to contained rear design. This solves some of the rear wave issues.

Shipping and Returns
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Speakers
All our speakers are handmade in Great Britain and fully tested prior to being shipped. Lead times will vary depending on the cabinet ordered, however this will be fully explained by a Lowther representative when placing your order with us.

Drive Units
We typically ship within 5 days of placing your order of drive units; however, some orders may take up to 10 days to process. Please note that we do not ship on Saturdays or Sundays.

All orders will arrive within 5 - 10 business days.  We offer shipping worldwide. However, we don’t ship to countries that are not operated by DHL or Parcel Force. All orders are shipped and tracked via DHL or Parcel Force.

Loudspeaker Kits
All our loud speaker kits are cut to order in Great Britain. Lead times will vary depending on the order, however this will be fully explained by a Lowther representative when placing your order with us.

Lowther is not responsible for any delays caused by the customs clearance process, or taxation in overseas countries.
Lowther is not responsible for lost package due to incorrect address supplied by the sender.

For more information and shipping inquiries, please contact us at hello@lowtherloudspeakers.com

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Experience the excellence of Lowther sound in whatever loudspeaker cabinet you like.

Frequently asked questions

If this list does not have the answers to your queries, please Contact us. Usually we respond to the general enquiries within 48 hours.

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Come and try it for yourself, and give your ears the gift of flawless sound.

Step into our Northampton listening room and discover the full range of Lowther speakers and products in a room that’s tailored for audio perfection.

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