Zacks CWF130.4 High Efficiency + Pulse CTW 28SQ 2 way Speakers

Technical Specifications:
Woofer
Kevlar Cone
Rubber Surround
Steel Basket
Peak power: 150W
RMS power: 75W
Ohm 4
Voice Coil: 1″ (25mm)
Fs: 100.89 Hz
dBSPL: 95.65
Vas: 3.35 L
Qts: 0.629
Qes: 0.79
Qms: 3.04
B*l: 4.56 T*m
gold contacts,
high efficiency 95.55dB

Tweeter
28mm soft silk dome
N57 Neodymium magnet
4 Ohm voice coil in 99.97% pure copper cooled by FerroFluid,
Ergal chassis completely machined from solid with numerical control.
Resonance Frequency: 1.386Hz,
Bearable Power 160WRms,
Efficiency 90dB