Connecting 2 1500d

[appleyard 0]

I have 2 1500d that I got from Dbr and 2 Fi Q15. My HU has a 3 preout which is for front, rear and sub.

Each 1500d will power a single Q15 and I connect both amp with RCA. Let say RCA from HU connect to amp A and another RCA connect from BR out of amp A to input to amp B. Is this the right way to do it?

Now when I scoped amp A it shows 40.4V with gains set at 3/4 of unclipped signal. Now when I scopped amp B with max gains I only got like 32V and it does not clip. So I decided to swap the RCA from HU to amp B. I got 41.5V with gains set at 3/4 of unclipped signal. But when I scopped amp A it has the same problem. Got 31V from it unclipped with max gains.

Does anyone has similar problems like this? This is the first time I had to monos which previously I only had 1 mono and 4 channel amp. Can I assume that the RCA cable or the RCA input or output has problems. If yes how do I diagnose or troubleshoot.

Thanks

[jbob 0]

Stop what you're doing and thoroughly read the manual on how the BR terminals work before you wreck something. I'm pretty sure you're doing it wrong from what I'm reading.

[mazzasec 0]

Are you gonna run them strapped or seperate?

[sundownz 197]

If you are using the BR connectors they MUST be strapped. Strapping instructions here:

http://www.soundsolutionsaudio.com/forum/i...?showtopic=7406

[bigbruno 0]

The BR terminals are for strapping the amps, not pass-thrus. you need to a "Y" connector to split your RCA's to send it to each amp.

[appleyard 0]

thanks

I didnt know that. I know someone who run 2 revo amps had this kind of settings without problem and I believe that the 1500d setting is similar.

Plan to run it seperately each will power its own sub. Can I strap it together and power each sub or do I have to wire the sub together as well?

[sundownz 197]

If you are strapping them you need to wire the subs together as a "single" 2 ohm load.

Otherwise you need to buy Y-Splitters to give signal into the regular input of each amp separately.

[appleyard 0]

Thanks

Bought a pair of Y splitter and everything is what its suppose to be. Will do scopping to check whether the amp is not damage.