Ultimate series UP4 is a new 10 cm (4″) 2-way component with a Kevlar cone. Fit most cars designed for 4″ speakers.
- Can be installed in new BMW cars where the door speakers are attached with four screws.
- The tweeter fits directly in the A-pillar tweeter attachment for BMW.
- A 200 Hz High pass filter can be switched IN when used in BMW cars with factory-fitted subwoofers.
- Neodymium magnet system.
- Small installation depth
- Powerful neodymium magnet system.
- Filter boxes with selectable tweeter levels in two steps.
- 25 mm silk dome tweeter T25
- Grilles are included.
| Woofer size | 10 cm (4″) |
| Tweeter | T25 – 25 mm silk dome tweeter |
| Power handling capacity | 80 W RMS / 160 W max |
| Impedance | 4 ohm |
| Frequency range | 65 – 20 000 Hz |
| Sensitivity | 89 dB /(1W/1m) |
| Crossover | Box filter with HP-filter 200 Hz, can be switched in |
| Crossover point (Hz) | 5000 Hz |
| Size of filter box | 145 x 85 x 45 mm ( 5,71 x 3,34 x 1,77″) |
| Outer diameter of woofer | 100 mm (4″) |
| Magnet size | 35 x 14 mm (1,38 x 0,55″) neodymium |
| Mounting depth | 45 mm (1,77″), tweeter 18 mm (0,7″) |
| Mounting hole | 102 mm (4″), tweeter 46 mm (1,8″) |