Porsche 911 (991/992) - Front Speaker Upgrade Package | HELIX Ci3 m_10 Channel or DSP variant (coming in

or DSP variant (coming in summer 2025): from flexible 6-channel setups for fullrange applications to dedicated mono powerhouses for subwoofers – the 2-Series offers tailored solutions for every configuration

Note: The HD-AUDIO USB-INTERFACE has two operating modes

70"           Recommended enclosure volumes  Sealed box       Net volume   33 L 47 L 65 L 115 L Lower limiting frequency (-3dB)   53 Hz 44 Hz 37 Hz 31 Hz     Bassreflex-Gehäuse   Net volume   70 L 90 L 110 L 140 L Port diameter ø 100 mm          Port area   78 cm²          Port length   27 cm 31 cm 37 cm 39 cm Port tuning frequency Fb 31 Hz 26 Hz 22 Hz 19 Hz Lower limiting frequency (-3dB)   27 Hz 22 Hz 19 Hz 16 Hz

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Special Features

Porsche 911 (991/992) - Front Speaker Upgrade Package | HELIX Ci3 m_10 Channel or DSP variant (coming inOverview Car Specific Speaker Upgrade Package This tested bundle of selected items was created specifically to upgrade the car's stereo using the HELIX COMPOSE system. It contains 2x front FlexMount tweeters 2x front FlexMount mids 2x front FlexMount door woofers 6x FlexMount speaker adaper OEM car specific speaker connectors How to shop To purchase or modify this bundle, click on Add to Cart and confirm your selection in the cart.