Warm Audio WA73 Single Channel British Mic PreWith 80dB of gain and a fully discrete Carnhill Transformer balanced signal path, theres no recording, mixing or engineering task that the WA73 cant handle. If theres one style of preamp that professional engineers would unanimously agree has defined the tone of pop rock records for decades, it would most definitely be the venerable '73 style of mic pre. '73 style preamps have been massively used in recording and live applications for many years and