New project...

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William
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Re: New project...

Post: # 23286Post William »

It would not make sense to have 4" midrange speakers, so try swapping the crossover around and see if that changes the sound. If that does not change anything, try hooking up the horns to another amp, horns only no other speakers and see what you get. You may have blown horns.

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hermitcrab
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Re: New project...

Post: # 23287Post hermitcrab »

well it just keeps getting weirder .... the 2 inner terminals on the 4 terminal end isolated by the ceramic .01 caps are dead... nothing emanating from those terminals, I even tried known good speakers ... nothing , even tried new .01 caps , bypassing the old ones from the amp to the speaker ... nothing again... hooking the horns directly to the amp outputs results in a sound equal to a weak pocket radio ...and get this... I can disconnect the ground from the woofer and they still play ...just at a tad lower volume ...I guess the next step is to try the chinese 3 way crossovers I have
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electra225
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Re: New project...

Post: # 23289Post electra225 »

Is it possible that you have something wired wrong? If you had a transistor radio with an earphone jack with some test cables made up, you could troubleshoot that speaker system to see just what you had. A signal tracer might do the same thing, just backwards from using the output from the radio. You could listen to the various connections to see where you lose the signal. Issues like that are always more frustrating when you are almost done with the project. Good luck! :) :)
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hermitcrab
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Re: New project...

Post: # 23294Post hermitcrab »

I connected one of those chinese crossovers and determined the horn is also a tweeter, along with the 4" speaker, the horn reproduces highs and the 4" produces super highs so it appears the woofer does all the heavy lifting for bass and the midrange... Are magnavox the same? 2 horns and a woofer on each side, and the horns just reproduce the highs and the woofer does the rest? I always assumed one of the horns was for the midrange ...I guess I expected more sound from the front...but it is what it is....but I can say the horns were more active on the cheapo crossovers ... at least I could hear them without putting my ear to them, unlike the stock crossover where you barely hear them at all
Last edited by hermitcrab on Wed Oct 23, 2024 11:33 pm, edited 1 time in total.
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electra225
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Re: New project...

Post: # 23297Post electra225 »

Basically, Magnavox is very similar. The "reproduction of bass" might be the fly in the ointment in some cases.... ;) ;)
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Re: New project...

Post: # 23306Post William »

According to the 1963 Magnavox brochure found in the downloads, so it would be Astro-Sonic, the woofers went as low as 40 cycles and if I read it correctly, as high as 3000 cycles. The horns, called 1000 cycle exponential treble horns, were advertised as starting at 1000 cycles and going up to 14,000 cycles. This is what was stated for the Astro-Sonic 100 which is probably what your MW would be equivalent to.

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