Sound Storm Laboratories SLQ469 SLQ Series 6 x 9 Inch Car Audio Door Speakers - 500 Watts Max, 4 Way, Full Range, Coaxial, Sold in Pairs, Hook Up To Stereo and Amplifier, Tweeters SLQ469 Cone: Pressed Paper It is pretty much exactly what it sounds like. The paper in this case has not been pressed therefore it does not have a smooth look or feel to it. The advantage of Non-Pressed paper is that it’s more rigid and is able to handle the high power and functionality that the SLQ469 has to offer. You don’t want the cone of a Speaker to have a flexible structure to it. The stiffer the cone is, the better sound quality you will receive. Full Range 500 Watt 6” x 9” 4-way Speakers Power Handling (peak): 250 Watts x 2 Impedance: 4 Ohms Frequency Response: 70Hz – 20KHz Sensitivity: 88 dB @ 1 W/1 m Voice Coil: 1” Aluminum Surround: Foam Basket: Stamped Tweeters: Mylar Dome x 2 Midrange: Mylar Cone Dimensions: L 10.4” x W 7.4” x H 2.7” Mounting depth: 1.8” Voice Coil: Aluminum Our speakers are capable of higher or elevated temperature strength and fatigue properties that will increase performance and efficiency of heavy duty play time through lower weight and higher operating temperatures. Surround: Foam Unlike rubber, foam is an alternative for the surround in speakers and subwoofers. Foam is in general more flexible than rubber, giving the woofer a slightly higher efficiency. This also translates to better excursion. (How far the cone of a speaker linearly travels from its resting position). It generally lasts anywhere from 8 to 15 years under the right conditions of usage. Basket: Stamped Here are a couple of advantages of die-casting over stamping speaker frames. One of the more noticeable differences is the fact that a die-cast frame has better Resonant Frequencies. This means that the frame is able to absorb and transfer much of the energy produced by the speaker. It doesn’t vibrate like a bell would when it is stricken. Another advantage is that a die-cast frame is more durable and harder to damage or break. Other advantages are high dimensional stability for complex shapes, good corrosion resistance, good mechanical property, high thermal and electrical conductivity and retains strength at high temperatures.
