HELIX P 52C - 5.25" 130mm 360 Watts 2 Way Component System car van SpeakersHELIX P 52C 5. 25" 130mm 360 Watts 2 Way Component System car van Speakers Puristically bred for maximum sound quality the P Series component systems do not even need to attract attention with their optical gimmicks. In the construction, the acoustic result was in the foreground. And that can really be heard due to the technical finesse. Starting with the unique fiberglass paper compound membrane of the woofer, over the hand coated silk dome of the