The Electro-Voice Evid 4.2 In-Wall Speakers are ideal for high-end recording studios. These speakers feature a 200-Volt transformer that provides power to the reproduced sound making it rich and loud. This in-wall speaker is equipped with two 101.6mm tweeters. The low-impedance of 8 Ohms gives you distortion-free, clean sound output. These speakers have an frequency response range of 65 Hz - 20 kHz that ensure the sound is well-detailed and clear.