Graham Audio SUB3 Subwoofers
The Graham Audio SUB3 is a subwoofer designed to work with the LS3/5 and LS3/5A from Graham Audio. Designed by Derek Hughes, it employs a novel bass loading technique to achieve extension down to 35 Hz in a compact enclosure.
Usually dispatched the same day. Delivery & returns
£3,350.00
Have a question? Call us on 0161 399 0993 or send a message. We also offer part exchange and price matching.
Delivery & Returns
We offer free UK delivery on all orders. Most orders are shipped with Royal Mail Tracked 24 or DPD Next Day services, but we sometimes use other delivery options for large or heavy items. We’ll let you know as soon as your order has shipped and provide you with the tracking details.
For click & collect items, we’ll notify you by email when your order is ready for collection. We can also provide delivery in person on click & collect orders — just ask if you’d like us to arrange this.
We want you to be delighted with your purchase. If you change your mind for any reason, you can return any item within 30 days for a full refund, provided it’s in unmarked condition with all packaging and accessories.
For full details of our policies, please see our Delivery and Returns pages.
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About the Graham Audio SUB3
The Graham Audio SUB3 is a subwoofer designed to work with the Chartwell LS3/5 and LS3/5A from Graham Audio, but it is also applicable to other designs of similar sensitivity and impedance. Designed by Derek Hughes, it employs a novel bass loading technique to achieve extension down to 35 Hz in a compact enclosure.
They are supplied in pairs, and are designed to be placed near to the rear wall, while the main loudspeakers remain in their usual ‘free space’ position. Output is via the front-facing reflex port.
There are connections on the rear for the input from the amplifier and output to the main speakers. There is also provision for feet or spikes to be fitted to the base of the cabinet. Being passive, there are no controls to misadjust – the system is designed to be “plug and play”.
The crossover uses high quality components, including air-cored inductors for zero saturation distortion and polypropylene capacitors. The system crosses over at 100 Hz, and in doing so, relieves the LS3/5 or LS3/5A of energy frequencies below this point. This will allow the system to reach greater replay volumes, providing there are adequate reserves in the amplifier used.
Specifications
| Attributes | Value |
|---|---|
| Brand |
Graham Audio |
| Colour |
Black, Cherry |
| Crossover |
4th order bandpass |
| Impedance |
8 Ω |
| Sensitivity |
84 dB |
| Frequency Response |
35 Hz – 100 Hz |
| Recommended Amplifier Power |
30 W – 80 W |
| Dimensions (W x D x H) |
300 mm x 340 mm x 300 mm |
| Warranty |
5 years |