Amazon.com Product Description
Bring the noise when you match your thumping car stereo system with this pair of Dual DS42 two-way speakers, which can handle up to 50 watts of RMS power (100 watts peak). They measure 4 inches round and feature a black chromed polypropylene cone, 1-inch black mylar dome tweeter, high-strength ABS grill with futuristic two-tone styling, black foam surround, rubber magnet boot, and black stamped-steel basket.
Tech Talk RMS versus Peak Power: Peak power is measured by a brief musical burst (such as a crashing cymbal) and refers to the maximum amount of power that a device can produce from such a burst. However, a more reliable specification is RMS (root square mean) power, which measures the maximum continuous power that an audio device can produce. With a higher RMS figure, your music will sound cleaner as well as louder.
What's in the Box Two car stereo speakers
Product Description
120W 4" 2-Way Speaker System