12M/4831G00 - Scan-Speak

Revelator4 ″ MidrangeType Number: 12M/4831G00Features:The Revelator series has for years been celebrated for producingthe best sounding electro dynamic transducers in the world.Since ScanSpeak was founded in 1970, the audio engineers andR&D experts working on the line have been on a quest to createdrivers that reveal all the sound in recordings, hiding nothing fromthe listener. This quest has resulted in several revolutionaryinventions that remove distortion in the magnet systems and inthe moving parts of the speaker. The philosophy is that the soundhas to be very dynamic, giving a perfect transient response andproviding tonal balance.One of the latest inventions realized in the Revelator midrangedesign is the sliced paper (or wood) cone, which reduces breakupmodes in the membrane dramatically. The result is anundisputed clarity in sound.Driver Highlights: Low loss suspension, sliced paper cone,Compact linear motor systemSpecs:Electrical DataNominal impedanceZn 4 ohmMinimum impedanceZmin -- ohmMaximum impedanceZo -- ohmDC resistanceRe 3.2 ohmVoice coil inductance Le 0.22 mHT-S ParametersResonance Frequencyfs 75 HzMechanical Q factor Qms 5.57Electrical Q factor Qes 0.35Total Q factor Qts 0.33Force factorBl 5.3 TmMechanical resistanceRms 0.55 Kg/sMoving massMms 6.5 gSuspension complianceCms -- mm/NEffective cone diameterD -- cmEffective piston areaSd 49 cmEquivalent volumeVas 2.4 ltrsSensitivity (2.83V/1m) 89 dB2Power handling100h RMS noise test (IEC)Long-term Max Power (IEC 18.3)Max linear SPL (rms) @ powerShort Term Max power (IEC 18.2)40 W-- W-- dB/W-- WVoice Coil and Magnet ParametersVoice coil diameter38 mmVoice coil height-- mmVoice coil layers --Height of the gap-- mmLinear excursion +/-3 mmMax mech. excursion +/-7 mmFlux density of gap-- mWbTotal useful flux-- mWbDiameter of magnet-- mmHeight of magnet-- mmWeight of magnet-- KgNotes:IEC specs refer to IEC 60268-5 third edition.All ScanSpeak products are RoHS compliant.

Frequency: 12M/4831G00Mechanical Dimensions:12M/4831G00© 2009, ScanSpeak. All rights reserved.