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Revelator 23W/4557T02
Technical Highlights
- Belastbarkeit: 225 W, Impedanz: 4 Ohm, Frequenz: 20-800 Hz.
- Schwarz eloxierter Alu-Korb, Gummi-Sicke, Ferrit-Magnetsystem.
- Resonanzfrequenz: 21 Hz, Kennschalldruck: 82 dB, Effektive Fläche: 232 cm².
- More technical details
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Revelator 23W/4557T02 by Scanspeak
The Revelator 23W/4557T02 is an 8" (20cm) Subwoofer from Scanspeak, distinguished by its patented symmetrical drive motor construction. With a black aluminum diaphragm and a ferrite magnet system with rubber coating, it offers exceptional stability and sound quality. The subwoofer is equipped with gold terminals and has an impressive power handling of 225 W. Additional features include a black anodized aluminum basket, ventilated elements, and a rubber surround. This subwoofer operates in a frequency range of 20 to 800 Hz and is suitable for various enclosure configurations.
- 9" (23cm) Subwoofer with aluminum diaphragm (Black)
- Patented symmetrical drive motor construction
- Rubber surround
- Ferrite magnet system with rubber coating
- Black anodized rigid aluminum basket
- Aluminum die-cast basket ventilated under the centering spider
- Gold terminals
- Power handling (nominal/music) = 225 W
- Frequency range = 20-800 Hz
- Resonance frequency fs = 21 Hz
- Impedance R = 4 Ohm
- Reference sound pressure SPL = 82 dB (2.83V; 1m)
- DC resistance Re = 3.45 Ohm
- Force factor BL = 9.3 N/A
- Voice coil inductance L = 0.45 mH
- Effective diaphragm area Sd = 232 cm2
- Moving mass incl. air load mms = 101 g
- Equivalent volume Vas = 45 l
- Free air total quality Qts = 0.47 (Qms=4.8, Qes=0.52)
- Diameter of the voice coil = 50 mm
- Linear displacement xlin = +/- 13 mm
- Mounting diameter d = 225 mm
- Outer diameter d = 255 mm
- Mounting depth (not recessed) t = 141 mm
Enclosure recommendation
- sealed box with 22 liters
- from 35/22 Hz (-3dB/-8dB)
Enclosure recommendation
- 89 liters BR box
- with HP70 port of length 32 cm
- from 16/14 Hz (-3dB/-8dB)

