UltraNearFieldJock
Active Member
I think currently MFB is the German specialty:
Backes&Müller: Dynamic Membrane Control.
Silbersand: feedback loop sensor controled.
Merovinger: Membrane control.
Acoulab; MFB.
AGM: sensor control in mid and bass.
Schanksaudio: Servo/Motional Feedback
ACT (Hr.Gruber - no more existing) sensor controled subwoofers. Here is one of mine, just bought eight years ago very cheap (thanks!) as a used pair in Holland, the sensor (micro) is good visible, further appreciated and used by me:
MFB is for me as DIY a dream, especially when I see such a photo (Silbersand):
"That our loudspeakers play in a different league is already shown by a test with a simple analyser.
(The level 110dB in the near field (30 Hz) corresponds to a diaphragm excursion of +/- 1.5cm. The value "THD" 0.269% shows the sum of all distortion values and other noise)."
Backes&Müller: Dynamic Membrane Control.
Silbersand: feedback loop sensor controled.
Merovinger: Membrane control.
Acoulab; MFB.
AGM: sensor control in mid and bass.
Schanksaudio: Servo/Motional Feedback
ACT (Hr.Gruber - no more existing) sensor controled subwoofers. Here is one of mine, just bought eight years ago very cheap (thanks!) as a used pair in Holland, the sensor (micro) is good visible, further appreciated and used by me:
MFB is for me as DIY a dream, especially when I see such a photo (Silbersand):
"That our loudspeakers play in a different league is already shown by a test with a simple analyser.
(The level 110dB in the near field (30 Hz) corresponds to a diaphragm excursion of +/- 1.5cm. The value "THD" 0.269% shows the sum of all distortion values and other noise)."
