Why do I find active splitters so cheap online?
Before comparing prices we must be aware of the characteristics of the equipment we are looking for. Normally what makes an audio splitter expensive are the transformers, used to galvanically isolate both the inputs and outputs of the audio signals. Offering an audio signal without distortion in the audio frequency band (20Hz-20KHz) requires transformers that use high quality materials and a very careful construction. This is translated into a high price component.