Usually, the efficiency of a dipole subwoofer is not particularly high; in exchange, the bass is unobtrusive and extremely low. Ripoles and dipoles should not be placed too close to a wall.
Darling kit without cabinet
Price per unit EUR 337,28 excl. VAT: € 290.76 / $ 343.10
The capacitor connecting the satellites is a 150 μF MKP instead of a 150
μF ELCO etched. That's a considerable improvement in the signal path to the
satellites displaying a significantly lower loss (above facto 100).
In addition, the 4 ELCO's at the two coax bass drivers are replaced with
To reduce the microphonics effect backed varnish coils are used in the signal path to the coax bass drivers (microphonics effect: the current produces mechanical vibration in the coil, inducing unwanted voltage that is passed on to the speakers).
Darling kit with high-end crossover without cabinet, price per speaker EUR 372,37 excl. VAT: € 321.01 / $ 378.79
Price for Modification Kit for one speaker:
EUR 10,92 excl. VAT: € 9.41 / $ 11.11