Gravity GSR464 will impress the best 4x6 inch 4-way that ensure you can enjoy all of the fantastic tones and sounds with highest satisfaction along the way you travel. It is one of the more economically sound out of all the speakers we reviewed so far. While most of the speakers listed here are high prices, this model is very reasonably priced and can actually be purchased, respectively. We think these speakers are great for the price. That is a major bargain, and like many series speakers we reviewed here, these speakers feature a sleek, stitch look that is very reliable. The model is above par speakers compared to factory installed speakers. That being said, if you’re looking for a decent and easy replacement for your worn-out speakers without splurging too much, then it would be a great buy. Technical Details: Model: SGR464 Speaker size: 4x6" Speaker type: 4 Way Peak power: 180W RMS power: 180W Speaker composition: alpha cellulose cones Sound type: Moisture resistant rubber surround Impedance: 4 ohms Sensitivity: 90 dB Frequency Response: 120Hz- 20KHz Mounting depth: 2-1/4" Magnet size: 2-3/4" Spade speaker terminals for easy installations Anti-resonant stamped steel basket for improved performance Package Contents: 4x GR464 180W Speakers Warranty card