Freeware : Spectrum Analyzers for Mac

All Mac Win AudioLeak by Channel D Software            Leq (Long-Term Equivalent Level) RMS / Peak analyzer   AudioXplorer by Arizona            Sound Analyzer Software   FFTea by Michel Pollet            Real time spectrum analyser   fielder by Sonomatics            a stereo imaging tool for mac   Frequency by Pandaa Jonas Arstrom            Spectral audio editor   MutilnspectorFree by VertexDSP            31 band spectral analyzer AU, VST  Sonic visualiser by Centre for Digital Music            viewing and analysing the contents of music audio files.   Sonogram by Christoph Lauer            Sound Analysis   SPEAR by Michael Klingbeil            spectral analysis and editing based on a sinusoidal sound model