Our Audio Line Matching Transformer with dual outputs has- 4 & 8 Ohms, with maximum ambient temperature - 40°C and frequency response - 40Hz to 20,000Hz (-2dB) is critically appreciated for its challenging attributes. The Audio Line Matching Transformer is suitable for driving from solid state amplifiers where isolated windings are not required or can be used with our "Classic" 1600 tube output transformers to provide a 25V or 70V line output. The height for installing place should not exceed 2000m.