Scan Speak 28 W 4878 T01 Revelator Woofer

-6 %

RRP 760,00 €

plus shipping
Goods have to be ordered
Notification of availability

Sign in with your Amazon credentials and easily pay with the address and payment information stored in your Amazon account.
-6 %
Scan Speak 28 W 4878 T01 Revelator Woofer

With the Revelator family you will find everything you need when it comes to High-End audio transducers, no matter whether your need is for a small 2-way system or a giant multi-way loudspeaker. The Revelator family has it all with the best performance and quality available. Products in the Revelator family have for many years been the industry standard setting the bar for others to match and still hold that position today!
  • 28 cm Woofer
  • 4 ohm
  • Paper Sandwich cone
  • Patented Symmetrical Drive motor
  • Spider with balanced tinsel leads
  • Long linear excursion
  • 3" Voice coil, Titanium former, paper reinforced
  • Stiff and strong die cast aluminium chassis

Short data

Usage as Woofer
Power Handling 500 Watt
Impedance 4 Ohm
Frequency from 23 Hz
Max. Frequency 1.5 kHz


Overall dimensions 280 mm
Baffle cutout 255.5 mm
Depth (Total) 139.6 mm
Front material Aluminium diecast
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Twin Paper
Dustcap Material Paper
Voice coil Ø 75 mm
Voice coil height 22 mm
Magnet Ø 200.5 mm
Magnet-height 62.2 mm


Resonance fs fs: 23 Hz
Mechanical Q Qms: 6.21
Electrical Q Qes: 0.27
Total Q Qts: 0.26
Equivalent Air-Volumen Vas: 104 Liter
DC-Resistance Re: 3.1 Ohm
Coil Inductance Le: 0.5 mH
Mech. Compliance Cms: 0.56 mm/N
Moving Mass Mms: 86 g
mech. Resistance Rms: 2 kg/s-¹
Max. Excursion +/- Xmax: 28 mm
BL Product Bl: 12 N/A
Membrane Ø Md: 215
Membrane Area Sd: 363 cm²
Sound pressure dB: 91 SPL


Technical Dimensions

PDF-Product information

You receive a 2 year warranty from the date of purchase for all of our high quality hifi-products.

If you observe any problem while using the product, you have the possibility to contact our friendly service team.

You can also easily manage your guarantee concern – without being obliged to – under the section My Account.