Jiashan Future Sound
Add: Dayun industrial zone, Jiashan, Zhejiang pr. China
Tel: +86.573.8468.1673
Fax: +86.573.8468.1678
E-mail: jackyliao580@hotmail.com
USA Affiliate
FSD Audio, LLC.

Add: 4774 Distribution Drive; Tampa, FL, USA; 33605
Contact person: Matthew Cameron
E-mail: fsdaudio@gmail.com
Tel: (813) 513 2936



RMS: 2500 Watts Series bass
MODEL: TC15100B/18100B/21200/24200
Glass fiber and paper cone with colth surround
High blue gloss colour Die cast basket with paper gasket
4-Layer CO


Size:    21 inch
Basket type:    Die cast
Nominal impedance:    8  Zn(Ω)
DC resistance:    7.2  Rdc(Ω)
Resonance frequency:    29  Fo(Hz)
Rated power(music):     2600  Watts  
Sound pressure level:    97  SPL(dB)
Mechanical Q factor:  7.2 Qms
Electrical Q factor:  0.46 Qes
Total Q factor:  0.43 Qts
Total moving mass:  186 Mms(g)
Effective piston area:  286  Sd(sqM)
Equivalent air volume:  305 Vas(L)
Voice coil diameter:    127.2 mm
Voice coil former:    BACCW
Voice coil layers:    5
Winding height:  32 mm
Linear excursion:  7.2 Xmax
Force factor:  23.5  BL(Tm)
Magnet diameter:   253 mm
Magnet weight:   140×2 Oz

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