Tannoy ST-50 supertweeter


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A SuperTweeter is a small high frequency drive unit, mounted in a special casing, designed to sit on top of, and drawing its input signal from, existing speakers. Tannoy SuperTweeter will transform any sound system, creating the effect of a quantum leap upgrade in the sound quality of speakers, electronic components and cables. All models are stand-alone units with vertical axis adjustment to ensure optimum combined acoustic output with the main speaker. Each has two sets of controls allowing both operating frequency and output level to be optimised for any type of speaker. The ST50 is constructed from a solid aluminium die-casting coated with a soft feel, non-reflecting finish. Not only are they designed to visually blend in with all types of speakers, but it also provides an instant acoustic upgrade that is unavailable in any other way.

Recommended amplifier power  Up to 200 Watts
Continuous output power  110 Watts RMS
Peak output power  450 Watts Peak
Sensitivity  93dB (2.83v @ 1m)
Nominal impedance  8 ohms
Frequency response  To 54kHz, usable output (-18dB) to 100kHz
Driver type  25mm (1.00") 25 micron titanium dome, 24 Karat vapour deposited gold finish, with neodymium magnet
Frequency  14, 16 or 18kHz adjustable
Type  3rd order high pass
Level adjustment  85dB, 89dB, 93dB adjustable
Dimensions  150mm (6.00") diameter
Weight  0.75kg (1.65lbs) each
Finish  Black with gold anodised Performance PlatformTm

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Providing your item is in stock, the order is usually dispatched within 24 hours. Please remember that postage and packing is completely free for orders over £50*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.

Deliveries usually take 1-3 working days. The majority of orders are sent via our couriers'; Interlink Express on a next-day-delivery service. Smaller, low value or light-weight items are normally posted using Royal Mail Recorded or Royal Mail Special Delivery.

Once your product has been dispatched, you will be notified via email and sent a unique consignment number, you can use this number at http://www.interlinkexpress.com to check the status of your delivery. If you have provided a mobile telephone number, Interlink's Predict service will notify you by text (and email) of a one-hour delivery window. If the window they suggest is inconvenient, you can change the date of delivery to a later one via text or email.

*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however delivery to these locations will incur a charge and can only be sent via a 2-day service.

Shipping CostsMainland UK (Next-Day)Offshore/Out-of-reach (2-day)Northern Ireland, Channel Islands, Isle of Man, Scottish Islands, Scilly IslandsRepublic of Ireland (2-day)
Under £50 Orders £7.50 £12.50 £15.00
Over £50 Orders FREE £19.99 £29.99
Surcharge Orders £50.00 £69.99 £79.99
Saturday Delivery £12.99 N/A N/A
Sunday Delivery £12.99 N/A N/A
Saturday by 12 Delivery £35 N/A N/A


Post codes exempt from the free delivery service include:

Scottish Highlands Post Codes: AB30-38, AB41-42, AB44-56, FK17-99, G83, IV1-28, IV30-39, IV52-54, IV63, KW1-14, PA21-33, PA34-40, PH15-26, PH31-41, PH49-50
Islands Post Codes: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3
Northern Ireland: All BT postcodes
Channel Islands Post Codes: JE, GY
Scilly Isles Post Codes: TR21, TR22, TR23, TR24, TR25