Archimago's Musings: MEASUREMENTS: Speaker Impedance - Part 2; sealed, ported, and a few of my speakers...
Thiele-Small Parameters: The Effect of an Enclosure
Speaker Q and How it Affects Sound Quality
Special Types of Subwoofers, Basics
Wlldse 12" 1200 Watt Peak Momentary Power Dual 2 Ohm Car Subwoofer AUDIO UNUSED | eBay
How Does Speaker Impedance Compare To Frequency Response?
Speaker Calculations
Impact of Resonance & Resonant Frequency in Audio Design | CUI Devices
Issues in speaker design - 2
BOSS AUDIO CX12 Chaos Exxtreme12 inch Single Voice Coil (4 Ohm) 800-watt Subwoofer - Walmart.com
Speaker Resonances - The Good, the Bad and the Ugly | Audio Science Review (ASR) Forum
Planet Audio TQ10S 600W Rms Torque Series Single 4-Ohm Car Audio Subwoofer | eBay
Subwoofer - Wikipedia
Loudspeakers
Noob question: Should I tune ported box to match drivers resonant frequency? | AVS Forum
Amazon.com: JINGERL 50W 4Ohm 8Ohm Car Subwoofer 4 Inch Woofers Speaker in Car Bass Speaker Long Stroke Loudspeaker for Automotive Sound Box IPC (Color : 1 pieces-4Ohm) : Electronics
Nominal parameters for the 8 in subwoofer | Download Table
Finding Resonant Frequency w/ Sealed Subwoofer Box & BASS SWEEP | 12" JL Audio W0 DIY Test Enclosure - YouTube
Audio System Resonance and Resonant Frequency | DigiKey