The Pyle PTA1000 has 2 Equalizer Bands. Signal to Noise Ratio: 102 Decibels. From Digital Power Amplifiers to Huge Flip Down TFT Screens, Pyle has the gear to transform your vehicle into a screaming entertainment hub on wheels. Choose from our extensive array of models with breakthrough features and performance. So outfit your installation with Pyle gear. Your ears and eyes will thank you!