1 – Comparison Double PZM Baffle Vs. PZM Stereo single Baffle
At least about +9dB are given from double PZM Baffle. In both cases 2 + 2 Primo EM172 caps were used.
2 – Sennheiser ME66 Vs. Em172 inside a 53 cm parabolic dish
Sennheiser ME66 increased of + 13dB to match the signal with EM172 in the dish.
Background noise introduced after a + 13dB increase in the first half file relates to Sennheiser ME 66