Scan Speak 23W/4557T-02 9" Black Aluminum Woofer

ScanSpeak 23W/4557T-02 Revelator, 9" Aluminum Cone Subwoofer, Black Cone

Same model as 23W/4557T, except with a black cone.

The Scan-speak 23W/4557T is a very high end subwoofer, designed to be used with a passive radiator in a small enclosure. This sub has a very rigid aluminum cone, low loss rubber surround and cast frame. The passive radiator is similar, but with a weight attached to the bass of the cone. The 23W/4557T is using the SD-1 motor system. There are gold plated binding posts and the woofer is covered by a decorative rubber cap.

Frequency response with the passive is down to 25Hz. One cubic foot sealed has an F3 of 33Hz.



TECHNICAL DATA:

Sensitivity 2.83V/1M 82 dB

Free air resonance Fs 20.5 Hz

DC resistance 3.45 ohm

V.C. inductance 0.45 mH

Power 225 W

Effective cone area 232 cm2

V.C. diameter 50 mm

VC height -

Air gap -



Lin. & max. excursion ±13 / ±20 mm

Air gap flux density -

Force factor BL Product 9.3 Tm

Moving mass incl. air 101 g

Net weight 4.6 kg

Vas 45.6 ltrs

Qms 4.8

Qes 0.52

Qts 0.47



Outside diameter: 255mm

Cut out: 225mm

Depth: 135mm

25.4mm = 1" = 2.54cm



Use as is or with 23W passive radiator.