The Professional Home Studio Pre-Amplifier was designed and engineered in the United States and will give you r customers years of dependable service. The pre-amplifier was manufactured with strict standards to bring them the best quality.Features: Power On/Off Switch w/LED Indicator 1/4" Mic Input Jack/Mic Level Control Bass/Mid/Treble/Loudness Control High/Low Filter Switch Selectable Stereo Mono Switch, Muting Switch Tape/Tun...