DESIGNED TO ELIMINATE NOISE: The NS20 Noise Suppressor eliminates unwanted noise and hum without altering car audio natural tone. It's the perfect pedal to quiet down any pedalboard or effects setup | USED WITH AMPLIFIER OR EQ: Eliminate ground loop humming and buzzing noise between an audio source and an amplifier. When used with car audio, this isolation circuit goes between the head unit and the amp or EQ | UNIQUE NOISE DETECTION CIRCUIT: Power supply noise of igniter produces filtration effect, make the sound effect is better This NS20 Unique noise detection circuit preserves the natural attack and envelope of an instrument's sound | RCA PLUGS: When connecting it to your amplifier just plug in the RCA Jacks that fit your amplifier and plug the other end into your Stereo. Tried plugging the RCA cables that were connecting to the amp into it, as well as the radio RCA | 200W & 15A HIGH QUALITY: Keep Safe! The body item is covered by copper material, having high temperature and melting resistant function. Prevent the item from short circuits. Keep safe in your car

2k 25kHz FREQUENCY RESPONSE: Pyramid’s 3.75” aluminum bullet horn with 1” titanium dome tweeter speaker has enhanced Ferrofluid and 2k 25kHz frequency response that will complete a sound system of a boat or any marine vehicle or woofer enclosure | 300 WATT POWER: This bullet horn super tweeter speaker provides up to 300 watts peak power because it is equipped with 20 oz magnet structure. It's all housed in heavy duty aluminum with swivel housing | 4 OHM IMPEDANCE: This marine speaker has 4 ohm impedance rating that compensates the undersized wire found in many of today’s marine vehicles. It ultimately reduces distortion so you can enjoy a crisp and clear sound | STANDARD SIZE: Pyramid follows the standard size for most marine stereo systems and created this set with a 1” audio tweeter plus an aluminum frame. The heavy duty housing and structure provides a strong foundation | COMES IN PAIR: This set of tweeters come in a pair in a gift box with all necessary hardware which is very easy to install with compensation capacitors. Additional feature includes 1”high temperature voice coil