For the car audio enthusiast wishing for the perfect audio experience
without a lot of trouble and inconvenience, the IQ Line component systems are the right choice.

IQ Line speakers promise the right sound for when you're on the move.
The speakers are acoustically tuned for optimal performance and fit
perfectly-to the millimeter-in most BMW, Mercedes, VW and Audi
automobiles. You can easily install them yourself with just some basic
mechanical and technical knowledge. And, if you later decide to sell
your car and prefer to hang on to your IQ Line speakers, you can remove
them easily without leaving behind any traces.

For drivers leasing their cars the decision virtually makes itself; speakers have to fit exactly or not at all. Since this model-specific adaptation is only mechanical and optical in nature, IQ Line systems bring the same uncompromising sound quality as Rainbow Car Audio's universal systems.  Perfect sound is ensured thanks to car-specific acoustic tuning. This is achieved through separate crossovers on the left and right to precisely balance the phase and level of the different axes from the mid-ranges and tweeters installed in the original factory locations.

All IQ Line components are precisely dimensioned for specific car models in order to provide the most finely tuned acoustics for each model, making IQ Line the most intelligent solution.