德国的全频喇叭厂商AER有18寸的大喇叭，素质很不错的说，才几百欧元。
Type SB 12" SB 15" SB 18"
Impedance (Z) 8Ω 8Ω 8Ω
Resonant frequency (fs) 29Hz 32Hz 26Hz
Frequency range 25-600Hz 30-800Hz 20-200Hz
Max Load 600W 1400W 1200W
Normal Load (P) 300WRMS 700W 600W
Efficiency (1W/1m) 96dB 96dB 95dB
MechanicQ-Factor (Qms) 6,24 4,72 5,8
Electrical Q-Factor (Qes) 0,37 0,35 0,41
Total Q-Factor (Qts) 0,35 0,33 0,38
Äquivalent volume (Vas) 82L 133L 288
DC resistance (Re) 6,0Ω 5,7Ω 5,5Ω
Voice coil Inductance (Le) 1,3mH 1,4mH 1,9mH
Linear XMAX 16mm 15mm 24mm
Weight 5,0kg 8,2kg 7,6kg
Surround Material Rubber Paper Paper
Magnet System Neodymium Neodymium Neodymium
