Soundfield ST250 Operation & User’s Manual

6, The SoundField ST250 Issue 1.5 User Guide 44 Other Functions Buttons BASS when in, a bass roll off filter (120Hz, 2 pole) is added as the microphone signal enters the control box. ATTN when in, puts a 20dB pad on the microphone, allowing a peak signal of 135 SPL. M/S when in…

16, The SoundField ST250 Issue 1.5 User Guide 14 Appendix A Theory of Operation The ST250 produces truly coincident stereo signals, it achieves this using the much acclaimed SoundField technology and this next section describes in some detail how this technology has been dev…

5, Soundfield ST250 The SoundField ST250 Issue 1.5 User Guide 3 End Out Inv Out End Out Inv In End In Inv Out End In Inv In Right Left SOURCE Right Left SOURCE Right Left SOURCE Right EndFireMic Inverted EndFireMic Inverted Side Fire Mic Side Fire Mic Left SOURCE Quick Start Getting Started The ST2…

10, The SoundField ST250 Issue 1.5 User Guide 888 B Switch This switch allows the user to record B-format four channel sound via the special STCB cable. These signals facilitate the complete post production of the sound (with control over both response and position) after th…

12, The SoundField ST250 Issue 1.5 User Guide 110 10 Specification ST250 Output levels are measured with a high impedance load with 20dB attenuator Front Sensitivity at 80SPL (fixed) -27dBV -47dBV Maximum variation of M with pattern +/- 1.5dB S sensitivity at 80dB SPL (maximum) -27dBV -47d…

17, The SoundField ST250 Issue 1.5 User Guide 15 X X X Y Y 2 2 If a cardioid is required facing forward, then the sum of W and X produces this, (although in standard B-Format X, Y & Z are enhanced 3db for similar programme levels to W). A cardioid is therefore actually…