Just wondering if anybody has ever heard of, or knows of Philips reputation with reference to car audio. Ive just looked at a mates Philips GTM 6935 speakers (rated 200w [60w nominal]). They have a frequency response of 25-32.000 Hz, a sensitivity of 93dB/W/m and are a 3-way design. They also have quite a large magnet. Will they be any good???