if you like a clear sound and if you use good chassis my reommendation is the Helix by Brax (http://www.audiotec-fischer.de/index2.html). i have got one and it is very neutral i never had a thing like that. by the way here is a list of my equipment. Head Unit RioCar MK2a 10Gig Steeringwheel Remote Pioneer CD-SR80 Amplifier Helix by Brax HXA 40 Front Speakers Canton Pullman RS 2.16 Woofer Visaton GF 250 in a Custom Box Access to Head Unit Wireless LAN Apple Airport Base Station gaphite in a Golf III but the most important part by choosing your equipment is your own taste!!! good luck and happy installation