NOW IN OUR 50th YEAR 

Please be aware that delays due customs procedures and continuing problems with the global supply chain are still affecting our stock holding. Therefore delivery times for some items are continuing to be longer than normal. This does not affect all items, but please contact us before ordering if you require your order before Christmas.

view cart
Items: 0 Total: £0.00
EuroPound Sterling

Loudspeaker repairs

Let us bring your loudspeakers
back to life by giving them a full
"MOT" using our repair and
upgrade services. Price from -
£75.00 per pair including VAT

Why not replace your crumbling foam
fronts with tailor-made cloth covered
wooden grille frames

Follow Us On Facebook

Bespoke Cabinets

Let us help you design unique
bespoke cabinets for
your loudspeakers.

Our cabinet-maker can produce
individually designed cabinets to a
high quality furniture finish.

20% Cancellation fee on
made-to-order products.

If you decide to cancel your
made-to-order speaker for any reason,
it is unlikely that we could sell it to 
another customer at full selling price.
We will therefore charge a
cancellation fee of 20%
of the order price.

Demonstration Room

A demonstration room is available 
at our premises for you to listen
to a selection of our loudspeakers.

You are welcome to bring your own
source equipment in order to replicate
your usual listening conditions   


Pay with American ExpressPay with MastercardPay with Visa ElectronPay with VisaPay with PayPal

All major credit and debit cards
processed through secure SagePay

Opening Hours

Opening times:
Monday to Thursday
8.30am - 4.30pm
8.30am - 1.00pm
Closed for lunch Monday - Thursday
1.00pm - 1.30pm 

Home > Drive Units > Bass & Subwoofer Units > Scanspeak

Scanspeak 30W 4558T00 Discovery

Aluminium Cone Bass

The Discovery series is designed for the discerning audiophile and to meet the needs of this demanding audience, Scanspeak have developed several new technologies to help reduce distortion and damping within the speaker.

  • Black Anodised Aluminium cone
  • Black coated Fibreglass/Paper sandwich dustcap
  • 56mm peak excursion
  • Aluminium short circuitin ring and Pole piece extension to reduce distortion and compression
  • Titanium voice coil
  • Nomex spider
  • Diecast Aluminium chassis
  • Vented cone and dustcap
  • Low damped rubber surround

Technical Data:

Frame diameter:    308mm

Sensitivity (2.83v/1m):   89dB

Nominal impedance:   4 ohm

Frequency range:   25Hz-2kHz

Free air resonance:   21Hz

DC resistance (Re):   2.6 ohm

Voice coil inductance (Le):   0.84mH

Effective piston area (Sd):   466.0cm²

Moving Mass (Md):   124.2g

Force factor (BL):   10.7Tm

Excursion (lin-max):   +/-12.5mm : +/-28mm

Qms:   8.24

Qes:   0.36

Qts:   0.34

Vas:   147L

Voice coil diameter:   51mm

Nominal power handling:   150w

Physical Sizes:

Frame diameter:   308mm

Overall depth (front of frame to rear of magnet):   151mm

Flange thickness:   6.5mm

Fixing holes:   8 x 5mm diameter on 295.5mm PCD

Cutout diameter:   282mm

Price per single unit excluding VAT

Price: £185.00

Scanspeak 30W 4558T00 Discovery

Customer Reviews
Write an online review and share your thoughts with other shoppers!