Features <br> 1.Control Range: 7 band equalization circuit control range 12dB, equalization band: 60HZ,150HZ,400HZ,1KHZ,3KHZ,6.5KHZ,15KHZ, by TI or ST original TL074 composition. <br> 2.Basic Parameters: 7 band sound equalizer preamplification gain, 4580 classic op amp provides 5 times amplification (14dB); input impedance 20K, output impedance 600 ohms. <br> 3.Compatible with Headphones: sound equalizer ear amplifier part of the NE5532 composed of type 47 headphone driver circuit, easy to drive all types of headphones, adjustable high and low. <br> 4.3.5mm Interface: 3.5mm input interface supports 4 pole plug, the output connects to the headset with a microphone, which can be used on cell phones for normal voice calls, and another terminal with a group lotus interface is available. <br> 5.Aluminum Alloy: The 7 band car sound equalizer is made of aluminum alloy, high strength, corrosion resistance, stable performance, DC5V?12V power supply, dual channel sound.<br> <br> specificationItem Type: 7 Band Sound Equalizer <br> Material: Aluminum Alloy <br> Power Supply: DC5V-12V <br> Interface : 5.5x2.1 <br> Input Impedance: 20K <br> Output Impedance: 600 Ohms <br> Equalization Circuit Control Range: 12dB <br> Equalization Frequency Band: 60HZ,150HZ,400HZ,1KHZ,3KHZ,6.5KHZ,15KHZ<br> <br> PackageList<br> 1 x7 BandSoundEqualizer<br> <br> 1 x Power Supply Cable