Biaeothanata-Bassist Posted May 11, 2014 Share Posted May 11, 2014 Hey guys I've got a Hartke LH500 head and Ampeg SVT 410 HE (not HLF) cabinet that I use for but I wanted to know if I was going to blow it doing the following. On the back of the hartke, it says it only pushes out 250w at 8ohms then the full 500w at 4ohms so I wanted to utilise the full power of the amp. On my Ampeg cab, it has 2 1/4" inputs which i read it says can use used for 2 separate amps (it's a mid 90's USA SVT 410 HE cab btw so it doesn't have speakons) so my question about it is, would I blow the amp or cab if I connected the 2 speaker outs from the Hartke to the 2 amp inputs on the Ampeg cab? Cheers Quote Link to comment Share on other sites More sharing options...
Graham Posted May 11, 2014 Share Posted May 11, 2014 I wouldn't do that, the impedance will be for the total cab, and I doubt the two connectors do what you think they will, more likely one's an input and the other a link so you can daisy chain the cab with another Quote Link to comment Share on other sites More sharing options...
bobbytodd Posted May 11, 2014 Share Posted May 11, 2014 +1 to not doing it Quote Link to comment Share on other sites More sharing options...
Biaeothanata-Bassist Posted May 11, 2014 Author Share Posted May 11, 2014 This is exactly what the back plate on my cab looks like btw so you can see, it just says input above each one Quote Link to comment Share on other sites More sharing options...
Graham Posted May 11, 2014 Share Posted May 11, 2014 Fair enough chap, looks like I'm wrong :-) However, I still wouldn't do it as the total cab impedance - 8 ohm, wont change if you run it in stereo, so you'll still only get the same power drawn from the head. Quote Link to comment Share on other sites More sharing options...
Biaeothanata-Bassist Posted May 11, 2014 Author Share Posted May 11, 2014 [quote name='Graham' timestamp='1399830921' post='2448123'] Fair enough chap, looks like I'm wrong :-) However, I still wouldn't do it as the total cab impedance - 8 ohm, wont change if you run it in stereo, so you'll still only get the same power drawn from the head. [/quote] Hi Graham, thanks for your reply, I hadn't seen your other one before posting the picture so I hope you don't think I was ignoring it. Thanks for the advise though, i did think that would be the case but didn't want to try it and have 4 fireballs puffing out of my cabinet haha. I might build a 1x15 cabinet to go with it to utilise the power of the cab. Seems like the most sensible idea! Thanks again though bud Quote Link to comment Share on other sites More sharing options...
Graham Posted May 11, 2014 Share Posted May 11, 2014 Cool, a self build should be quite rewarding. Quote Link to comment Share on other sites More sharing options...
barkin Posted May 11, 2014 Share Posted May 11, 2014 (edited) I think you'll find the LH500 is 350W @ 8 Ohms. The connections, at both the amp end and the cab, are parallel, so it'll make no difference whatsoever if you were to connect the two amp outputs to the two sockets on the cab using two cables... ...unless one of the cables were wired with reversed polarity at one end, in which case you'd be putting a short circuit across the amp output ! Nothing to gain, and potential to damage the amp or trip the internal protection circuitry. I wouldn't try driving the cab with 2 separate amps either... Edited May 11, 2014 by barkin Quote Link to comment Share on other sites More sharing options...
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