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 298,00 excl. VAT: € 250.42 / $ 280.47
The capacitor connecting the satellites is a 150 uF MKP instead of a 150
uF 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 328,00 excl. VAT: € 275.63 / $ 308.71
Price for Modification Kit for one speaker:
EUR 10,60 excl. VAT: € 8.91 / $ 9.98