Is it obligatory for the imam to raise his voice in the takbirs of transition?

Question:
Honorable Shaykh, may Allah grant you success, is raising the voice for the imam in the takbirs of transition considered obligatory?

Answer:
Yes, indeed. So what is the benefit then? It is so that they can hear him and follow him. If they do not hear him, they will not follow him, and a defect will occur in the following. Therefore, he must make them hear him. And now, praise be to Allah, the loudspeakers make the near and the far hear. If only they would restrict themselves to making those in the mosque hear! Now they make the entire neighborhoods and other mosques hear, and they disturb the people. They have exceeded the limits with the loudspeakers. They have exceeded the limits with the loudspeakers. Yes.