A4-FTW1
1.2"/32 mm Dome Tweeter
The A4-FTW1 uses the ESB CS-T31 1.2"/3.2 cm component tweeter, with special adaptor to fit the Audi A4/Q5 original tweeter housing in the front seats.
Technical Specifications
- Nominal Impedance: 4 Ohm
- Nominal Power Handling: 80 Watt
- Transient Power: 160 Watt
- Frequency Response: 900 Hz ~ 25 KHz
- Sensitivity: 92 dB 2.83v/1m
 
A4-F81
8"/200 mm Woofer
The A4-F81 uses the ESB CS-W81 8"/20 cm component woofer, with special adaptor to fit the Audi A4/Q5 original woofer housing in the front seats.
Technical Specifications
- Nominal Impedance: 4 Ohm
- Nominal Power Handling: 120 Watt
- Transient Power: 240 Watt
- Frequency Response: 40 Hz ~ 2 KHz
- Sensitivity: 91.5 dB 2.83v/1m