Opties TE28 TEF set TE25/MI03/SL30/DV10   MI04 Omnidirectional microfoon MK09 Cardioide microfoon 123dB SPL SL51 Hardware kit room referentie SL61 Real time analyse software SL62 Time delay spectrometry software SL63 Post processing software SL64 Maximum length sequence software SL65 Precision Equalization software SL66 Polar Energy-time curves software SL67 Polar software SL68 Noise level Analyse software