VAR14-30 is a set of SR passives which are used to reduce signals and noise. These passives are typically used in a variety of audio devices such as amplifiers and preamps, as well as headphones and other consumer electronics. The components of this set typically include resistors, capacitors, inductors, ferrites, attenuators, and transformer coils. These components all work together to help reduce the amount of unwanted noise and distortion in the audio signal. They are also used to improve the frequency response, dynamic range, and efficiency of the device.