[Split from the without measurement thread
** Post #14 - Help with taking measurements
(Hensolo - let me know if you want to change the title of this thread)]
AllenB, hello. There are a few questions about my acoustics. This is an open box with a phase inverter with a rectangular output. Two midbasses, one mid and tweeter. I want to redo the crossover. In the initial state, the manufacturer claims the midbass-mid-400 Hz section frequency, mid-tweeter 3 kHz. With this crossover, the lower middle is in the hollow to - 20 dB from 100 Hz to 300 Hz. The lower midbass is trimmed by a larger inductance coil, the upper midbass is slightly smaller. These are the first orders. The middle from the bottom is cut off in the first order, from the top in the second. Tweeter second. It is a tape. Midbass are turned on in reverse polarity, and the middle and tweeter are in right polarity. When I switch midbass to right polarity, and the middle and tweeter also stay in right polarity, the middle gets better, the bass gets smaller. Which way to go to get a normal lower middle and normal bass? I took measurements of the impedance and phase of the whole system as a whole, the frequency response for each speaker without a filter, with filters and the whole system. The speakers were in regular places.
** Post #14 - Help with taking measurements
(Hensolo - let me know if you want to change the title of this thread)]
AllenB, hello. There are a few questions about my acoustics. This is an open box with a phase inverter with a rectangular output. Two midbasses, one mid and tweeter. I want to redo the crossover. In the initial state, the manufacturer claims the midbass-mid-400 Hz section frequency, mid-tweeter 3 kHz. With this crossover, the lower middle is in the hollow to - 20 dB from 100 Hz to 300 Hz. The lower midbass is trimmed by a larger inductance coil, the upper midbass is slightly smaller. These are the first orders. The middle from the bottom is cut off in the first order, from the top in the second. Tweeter second. It is a tape. Midbass are turned on in reverse polarity, and the middle and tweeter are in right polarity. When I switch midbass to right polarity, and the middle and tweeter also stay in right polarity, the middle gets better, the bass gets smaller. Which way to go to get a normal lower middle and normal bass? I took measurements of the impedance and phase of the whole system as a whole, the frequency response for each speaker without a filter, with filters and the whole system. The speakers were in regular places.
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