Frequency Response: 45 - 20,000 Hz / Sensitivity: 90dB 1/2" Polyether imide (PEI) balanced dome tweeter / Neodymium magnet motor structure Power Handling - Peak: 700 Watt Features EVC (Extended Voice Coil) technology - immediate improvement above OEM Top-mount Depth: 3/8" Cutout Dimensions: 5" x 7-3/16 " 4 ohms impedance Music is a great companion when you’re on the road, but most cars on the lot come equipped with low-quality factory speakers that don’t do your favorite tunes justice. If you're a real audiophile, it might be worth swapping out your car's speakers for ones of a higher caliber. And the good news is that you don't have to spend a fortune to do it, either. But before you begin your hunt for a new audio system for your automobile, there are a few things to consider. First should be budget. How much do you want to spend? Other important factors are sound quality, speaker size (do you want a 6x9 speaker, a 6.5-inch speaker or something with a killer bass?), as well as design. To help you make the right decision, we only choose the highest quality speaker such as SoundXtreme SX for you to buy.
Technical Details:
Power Handling - Peak: 700 Watt
Features EVC (Extended Voice Coil) technology - immediate improvement above OEM
Polypropylene mid-woofer cone material
Polyester foam speaker surround
1/2" Polyether imide (PEI) balanced dome tweeter
Neodymium magnet motor structure
Stamped steel frame basket
Top-mount Depth: 3/8"
Cutout Dimensions: 5" x 7-3/16 "
4 ohms impedance
Frequency Response: 45 - 20,000 Hz
Sensitivity: 90dB

Package Contents:
4x Soundxtreme ST-680