The Sinustec ST-150c is an affordable but high-performance 4x6 "coaxial speaker (pair).
The Sinustec ST-165 was tested in AutoSound magazine 2/2011 and the reviews were flattering :? Sinustec again is very balanced. Actually considering the price range it is incomprehensibly good. The same is not often heard even in orders of magnitude more expensive sets. Maybe I want a little more bass, but the bass that the series plays will be nice. "
Features:- Power endurance (rms / max) 120/250 W
- Impedance: 4 ohms
- Sensitivity: 90dB / 1W / 1m
- Frequency response: 40-23000 Hz
- Installation depth: 53mm
- Mounting hole diameter: 142x92mm
- Outer diameter: 150x100mm