Icon Audio Passive Line Pre Amplifier - Available in black ONLY Icon Audio's Passive Line Pre Amplifier is a purer alternative to a full pre amplifier, allowing line level items directly to your power amplifier, with only high quality volume and input switching inbetween. The main reasons for having a full pre amplifier (apart from tone controls and balance which thankfully most high pre amps have dispensed with) are: (1) Voltage gain (for example where your 1 volt tuner output needs to drive a 1.5v power amp input), and...(2) Where the capacitance of very long connecting leads degrades high frequency. However, modern tuners, CD players and phono stages usually have enough output to drive your power amplifier(s) effectively without the need for (1) and in most modern systems you are.
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