SPL

Dedicated Headphone amplifiers are a must when you are dealing with high end audio, and a seperate DAC is used to convert your digital music back into analogue so you can hear it...

Microphone pre-amplifiers convert the signal from the microphone into a line level signal, SP/DIF digital or USB format. The use of a good preamp with a good condenser or ribbon microphone can produce some very accurate and detailed results.