Newbie, ex speaker reconer; advice on ADS L300 /12" bass custom build

[PatJBL]

Hi Folks, Thanks for letting me sign on to the group. I am a newbie to the group, but not a newbie to speakers, I used to run a Reconing shop/ way back called SPL Acoustics.
I picked up a pair of ADS L300s at Good will for $15 the pair, perfect shape.
I have a pair of 12" guitar speakers reading the heavy, back magnet have a 137 number for I think the manufacturer. The two as shown on the bench pictured.
Where can I find a list of Mfg Numbers-Name chart?
I want to put the guitar speakers in a large cabinet, and set the L300s outside on top, as midrange/tweeter for a custom experiment. The L 300s are 4 ohm impedance and the bass drivers from the DC coil resistance (6.2 ohms) look to be 8 ohm impedance
Is there a database somewhere that shows design crossover frequencies of commercial home speakers, specifically the L300s?

 

[teal'c]

No database that I know of, there is a search engine though.
https://audiokarma.org/forums/index.php?threads/ads-l300-variants.757002/#post-10302403

 

[alteclipsch]

I think 137 is CTS.

 

[PatJBL]

I think 137 is CTS.

Thanks alteclipsch; I wonder where a list might be that features the code numbers for most of themain players that manufacture drivers?

 

[alteclipsch]

Try this, I think there are others.
https://www.google.com/url?sa=t&sou...FjABegQIDRAG&usg=AOvVaw25D3AWHXI9uCqcpvCiAs39