Hi everyone i am 16 and a new Audiophile i had a neighbor Dale that built huge horn speakers he had dozens and dozens of speakers mostly old JBL ,Altec Lansing , Stephens true sonic ,Electro voice but he had some new stuff also. Some of his speakers where so loud i could feel a acoustic guitar play they were amazing. He was going to build me some speakers cause i would help him work around his house all the time and i did not know he was doing it. But he died in March and never had the chance to built them. Then His son came to town get all his stuff and while helping him and his mom she remembered Dale had these speakers in the corner for me so she gave them to me. They are JBL L300 cabinets no grills Altec Lansing 803 woofers BMS 4550 mid range and Beyma cp21 tweeters but no crossover. I found the crossover for the JBL L300 back in April on ebay but they sold for $685 i can't afford that my dad said if i buy the parts his friend will solder them for me and wire the speakers up. So my question is can i use the JBL L300 crossover without the JBL speakers? Will it still sound good or will i have to use some other crossovers? Can i design some with a online crossover calculator? And his son also gave me his old receiver he had when he lived at home it is a Sansui 80/80 it.s 80 watts per channel will this be a good match with my speakers? Reading online it says 150 watts is best to power L300's. Hope to hear some good advice i can't wait to hear my speakers. One day when i have more money i will restore these to stock i see they sell for like $5000.00 thats crazy their almost 3 times older than me.