Power Acoustik PD-627B Double DIN 6.2" In-Dash DVD/CD/SD/AM/FM Receiver with Bluetooth and Capacitive Touchscreen Marine 1 Channel Amplfier It has a resonance frequency

It has a resonance frequency of 41

Damping material VibraFlex nowadays is known as the most effective damping material in the price / quality ratio

Size: 15" High Excursion Subwoofer

83 mH at 1 kHz Mechanical Mass Without Air Mmd 59

Power Acoustik PD-627B Double DIN 6.2" In-Dash DVD/CD/SD/AM/FM Receiver with Bluetooth and Capacitive Touchscreen Marine 1 Channel Amplfier It has a resonance frequencyBluetooth Hands free calling and A2DP wireless audio playback Accepts OEM Steering Wheel Control Interfaces Advanced FM AM Tuner with RDBS Playback from DVD & CD of MP3 & MP4 Playback from 64GB SD USB of MP3 & MP4 ID3 MP3 Tag Reading for Track & Artist Information 6. 2 All Glass Capacitive Touch Screen Multi band Audio Equalizer w Presets Front & Rear Pre Amp Audio Outputs Rear View Camera Input w Trigger 300w 4ch. MOSFET Speaker Outputs Power