Problem when daisy-chaining amps

Thanks for all the help guys. Here's what I did this morning... in the rain... on Thanksgiving... Can you tell I really want this system up and running //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I pulled both subs from the enclosure. Verified my jumpers looked good and were still connected. Verified wiring inside the box and made sure I was getting 2 ohms at the speakers and at the connector on the outside of the box. Good deal.

Next, I reinstalled both subs and used brian84corvette's battery tip. Can clearly see both speakers being PUSHED OUT. Reverse polarity to the battery and can see both are PULLED IN. Loverly.

Here's where I strayed from advice about the LOC... I put a lot of work into this. It's not a shoddy job and that sum bish is soldered and heat wrapped. Really don't feel like cutting stuffs that I'm 99.99% sure is correct, just to resolder and heat wrap it again. I was also drenched by this point and feeling like I want some turkey insead of dealing with this craptastic crappidy crap. Thankfully, I have a home recording studio and pretty much every audio cable and adapter known to man. I dug out a 3.5mm mini jack to stereo RCA cable and connected my phone directly to the input of the amp. Unfortunately, this part is not a good deal or loverly. The problem remains.

Next, I intentionally wired one sub up with reversed polarity. Same.

Last, it was not mentioned here, but I disconnected the sub from the second amp and daisy-chained the amps. It also has the problem with the sub not connected.

I just don't get it.

Hope everyone has a happy Thanksgiving!

well - the 3.5mm phone jack cable should be enough to run the amps - its exactly what im using on my system now ( no headunit ) so i would look in to your power wire runing to the amps as well as the ground connections to them.
use the 3.5mm mp3 player cable to hook to your amps individualy and varify they play corectly one at a time ?

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Hello Brian,

Yes, everything works fine individually. They also worked fine individually when connected to the LOC. I can have everything connected (except the RCAs disconnected from the 2nd amp) and playing fine. When I connect one of the RCA to the second amp, the level drops. When I connect the other, it drops even more. The audio also becomes distorted. I've tried changing the order of the amps and doing the same test, with the same results.

If I read your op correctly, you stated that you daisy chained from the pre out to the other pre out? Correct me if that's not the case. It would be preout to input of the second amp. Also possible you have bad rcas.

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Hello CSCStang,

I said preamp output on the first to the preamp input on the second. These amps have both preamp-level inputs and speaker-level inputs. I stated it this way to make it clear I was not using the speaker-level inputs. I chose to use a separate LOC that provides remote power, specifically for the remote power. Plus it makes it easier to swap amps in the future.