Hi Mauro, First of all you cannot connect the piezo tweeter via the crossover, it doesn't connect that way. I have a copy of that crossover diagram and I think you must be reading it wrong, the HF output goes to the HF speaker via the 3uF capacitor and 15 ohm speaker as you would expect. The full output goes to the LF speaker. I will email you a copy of the diagram. Norman. ------ Original Message ------ From: jukebox-list@lists.netlojix.com To: jukebox-list@lists.netlojix.com Cc: m.desimone@rogers.com Sent: Monday, August 17th 2026, 22:14 Subject: [Jukebox-list] AMI H & I Speaker Crossover question I am currently working on an AMI model I and although I’ve worked on a few of these I never really tried to figure out the crossover since the jukes always sounded amazing. I have one here that was missing the crossover and speakers but had an old RCA full range speaker connected directly to the amplifier. Surprisingly it sounded great! I have now found and installed the correct crossover and a 12” speaker from the model J, which has the same part number. I purchased a horn speaker “ for Model H-I” from eBay but received a piezo aftermarket horn speaker. Which I am going to replace! But I wanted to see how it would sound and it’s not good. What I don’t understand is the simple crossover design. The 3mF capacitor (which is now new) goes between the input and the 12” Low frequency speaker? Does this not block some of the low end frequencies going to the 12” speaker? From input to the tweeter there is a 15 ohm resistor and from input to the black/common connection there is a 33 ohm resistor. This makes little sense to me and would have thought this is wrong but I’ve looked at others that sound great and this set up is correct. Is there anyone that could enlighten me as to why it’s designed like this? I always thought the capacitor should be connected to the high frequency speaker. (I really miss Jim Alexander, he would be all over this) Thanks, Mauro Sent from my iPhone _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/