Сабвуфер своими руками.

[Darek]

Думаю мастырить эту конструкцию саба [Ссылки могут видеть только зарегистрированные пользователи. ] - Max SPL 141 dB :) Рекомендуют Use any RCF LF18N451 Subwoofer or any LF driver that has similar ts parameters with this. Но этот дин дороговат, ищу замену с примерно такими параметрами. Может есть кто разбирается в параметрах динов? Итак:
Рекомендуемый RCF LF18N451
Resonance frequency (Fs): 31 Hz
DC resistance (Re) (ohm): 5.00 ohm
Mechanical factor: 6.00 Qms
Electrical factor: 0.25 Qes
Total factor: 0.24 Qts
Bl factor (Bl) (T x m): 30.20 T x m
Effective moving mass (Mms): 235.0 g
Equivalent Cas air loaded (Vas): 245.0 liters
Effective piston area (Sd): 1120 сm2
Max. linear excursion (Xmax): 9 mm
Voice coil inductance @ 1kHz (Le1k): 2.60 mH
Half-space efficency (Eff): 2.54%

Кандидат 1 Eighteensound 18LW2400
Resonance frequency (Fs):35 Hz
DC resistance (Re) (ohm):5.00 ohm
Mechanical factor: 7.2 Qms
Electrical factor: 0.32 Qes
Total factor: 0.31 Qts
Bl factor (Bl) (T x m): 25.6 T x m
Effective moving mass (Mms): 190.0 g
Equivalent Cas air loaded (Vas): 230.0 liters
Effective piston area (Sd): 1225 cm2
Max. linear excursion (Xmax): 9.5 mm
Voice coil inductance @ 1kHz (Le1k): 1.35 mH
Half-space efficency (Eff): ..........?

Сильно ли большие отличия, подойдёт?

Кандидат 2 B&C 18TBX100
Resonance frequency (Fs): 34 Hz
DC resistance (Re) (ohm): 5.1 ohm
Mechanical factor: 7.2 Qms
Electrical factor: 0.37 Qes
Total factor: 0.35 Qts
Bl factor (Bl) (T x m): 25.5 T x m
Effective moving mass (Mms): 209.0 g
Equivalent Cas air loaded (Vas): 212.0 liters
Effective piston area (Sd): 1210 сm2
Max. linear excursion (Xmax): 9 mm
Voice coil inductance @ 1kHz (Le1k): 1.6 mH
Half-space efficency (Eff): ....?