4x10/2x15 Mono/Stereo Electric Cab Wiring HELP!!!

Please help me sanity check this before a potentially costly wiring mistake!

I purchased this cab a bit ago, it came with a nifty 2 1/4" jack plate with a mono/stereo switch. Unfortunately the switch was defective so I installed this 3 1/4" plate instead.

The plate is setup so that I should be able to chain the bottom 1/4" into either of the top two...giving me a total 8 Ohm load. 16 ohms from the top 4 speakers and 16 ohms from the bottom. I tried to color trace the wiring via Microsoft Paint so please forgive me!

-The 215s are eminence kappa 15a's (each 8ohms-wired in series)
-The 410s are eminence delta 10b's (each 16ohms-series parallel)





Here's the fun part...with my digital multimeter im getting a reading of 11.5Ω from all three 1/4" jacks tested from a 3 foot 16g speaker cable (should be closer to 16Ω right??). And when I hook it up as a single mono cab i'm getting about 5.4Ω-5.6Ω reading from either of the top 2 (should be closer to 8Ω right??) I know the multimeter is never going to show me 16Ω and 8Ω exactly but i've always understood it would be about 2Ω's off at most?

I've phase checked the top and bottom half of this huge single cab and all the speakers are functional. Im pretty sure my wiring is correct, are the low Ω number readings due to the additional speaker cabling?

Please help!

 

Could you give me the good word on how to accurately test each speaker individually?

Which part of the wiring on that 410 seems funky?

Thanks for the help!

 

They all did move together on the phase check, thanks for the heads up. That makes NO sense to me though on the 11.5 via 16 ohm reading...I was expecting 14 or 15 reading

anyone can show me how to run the test on the speakers individually with the same multimeter? Do they need to be disconnected from the circuit?

Thanks everyone

 

thanks! Its an Electric Amp USA Black cab

www.electricamps.com