They are both 1.5" throat aluminum horns from the the new SRX series. The first one is 90 x 50 degrees used in the SRX712M, 353299-001. The second in a 70 x 50 degree horn used in the SRX715, 725, 722, 352606-002.
Here is a product parts sheet http://www.jblproservice.com/pdf/SRX...es/SRX715F.pdf