Lbk Posted July 27, 2020 Share Posted July 27, 2020 Can I run an rca splitter from a single avr sub out to a 2 channel amp, then each channel to a separate passive sub? Thanks. Quote Link to comment Share on other sites More sharing options...
billybob Posted July 27, 2020 Share Posted July 27, 2020 Don't know but sounds like a good Experiment. How many watts per channel? Quote Link to comment Share on other sites More sharing options...
OO1 Posted July 27, 2020 Share Posted July 27, 2020 1 hour ago, Lbk said: Can I run an rca splitter from a single avr sub out to a 2 channel amp, then each channel to a separate passive sub? Thanks. you're better off getting an Avr/ amp that can operate 2 subs at once ---- Quote Link to comment Share on other sites More sharing options...
billybob Posted July 27, 2020 Share Posted July 27, 2020 Just now, RandyH000 said: you're better off getting an AVR that can operate 2 subs at once safely ------ They are passive. Quote Link to comment Share on other sites More sharing options...
Rivernuggets Posted July 27, 2020 Share Posted July 27, 2020 It should work fine, IMO. On 7/26/2020 at 8:14 PM, billybob said: How many watts per channel? I'm curious too. What is the amp you intend to use? 1 Quote Link to comment Share on other sites More sharing options...
wuzzzer Posted July 27, 2020 Share Posted July 27, 2020 It'll work great. I did the same thing a while back. Quote Link to comment Share on other sites More sharing options...
Lbk Posted July 27, 2020 Author Share Posted July 27, 2020 I have an old hafler amp (240watts per channel) that is running my avr sub out to a revel b15, works good. The amp on the revel started to sound like it had a bad connection so I took it out. I visually checked it but did not see/smell any problems, plan on reflowing the boards and then go from there. The other sub is diy sealed 18 inch seismic audioI I build on the cheap. It's behind the sofa and adds a little bump to rump. I would like to run both off the hafler but don't want to burn anything up. I could do without the diy sub if I had to. My fear is running the hafler off 1 sub out to both channels could create some kind loop-power issue and blow something up. New avr would be nice but not going to happen right now. 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted July 27, 2020 Share Posted July 27, 2020 2 hours ago, Lbk said: New avr would be nice but not going to happen right now. or you can look for an amp that can be bridged with the 2 subwoofers ---- Quote Link to comment Share on other sites More sharing options...
babadono Posted July 27, 2020 Share Posted July 27, 2020 3 hours ago, Lbk said: Can I run an rca splitter from a single avr sub out to a 2 channel amp, then each channel to a separate passive sub? Thanks. Why not? May not be the optimal/awsomest set up ever but why not? Quote Link to comment Share on other sites More sharing options...
Lbk Posted July 27, 2020 Author Share Posted July 27, 2020 9 hours ago, RandyH000 said: or you can look for an amp that can be bridged with the 2 subwoofers ---- The hafler can be bridged and I thought about doing that. Running both on series or parallel depend in ohms load. I did some research and a spitter for 2 active sub is recommend. So I ***-ume running a 2 channel amp would provide 2 separate amp supplies? Also found out lower level AVR's (1000 bucks and under) with 2 subs out are wired together so just like using a splitter. Only higher end AVR's have independent sub control. So splitter should be no problem. I have a low power kenwood amp I could spit off to DIY sub but not sure it has enough power. I will play with it today and let you guys know if I let the magic smoke out. Still open to any - all ideas. Wuzzer hope your not insulted, I trust you word just being cautious. 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted July 27, 2020 Share Posted July 27, 2020 49 minutes ago, Lbk said: The hafler can be bridged and I thought about doing that. Running both on series or parallel depend in ohms load. I did some research and a spitter for 2 active sub is recommend. So I ***-ume running a 2 channel amp would provide 2 separate amp supplies? Also found out lower level AVR's (1000 bucks and under) with 2 subs out are wired together so just like using a splitter. Only higher end AVR's have independent sub control. So splitter should be no problem. I have a low power kenwood amp I could spit off to DIY sub but not sure it has enough power. I will play with it today and let you guys know if I let the magic smoke out. Still open to any - all ideas. Wuzzer hope your not insulted, I trust you word just being cautious. do what you gotta do -------just as long as it sounds right - Quote Link to comment Share on other sites More sharing options...
Iteachstem Posted July 27, 2020 Share Posted July 27, 2020 I run a single sub output from my av processor to a Crown K2. The K2 has a "y" switch on the back panel (see picture... it's located in between the XLR inputs) that basically passes your single input signal to both inputs without using a cheap audio Y splitter. K1 or K2 amps are awesome for sub duty because they don't have a fan and have a ton of headroom to drive even very inefficient loads and a damping factor of greater than 3000! K1= 350 watts per channel at 8 ohms 550 watts at 4 ohms and 750 watts at 2 ohms. The K2 is 500 / 800/ 1250 respectively. If anyone needs more power than that they need to go to get their ears checked! ...or use a q-tip! You can usually pick these amps up used in the $200-$400 price range. (about the price of a mediocre subwoofer plate amplifier) Worth every penny. I've been using my K2 ( and a K1 for another system) since after I graduated college in 1997. Needless to say, these amps hold up very well. I hope this gives you another option to consider 1 Quote Link to comment Share on other sites More sharing options...
001 Posted July 27, 2020 Share Posted July 27, 2020 simple answer is yes, you can use an RCA Y splitter to run to 2 channels of an amp. used to do it all the time in car audio when there was only 1 set of L/R pre amp outputs on a head unit but ran multiple amps. Quote Link to comment Share on other sites More sharing options...
Lbk Posted July 27, 2020 Author Share Posted July 27, 2020 I have some options now! The crown amp looks nice and may work for the b15 if I can't it's amp fix reasonably. Thanks! Quote Link to comment Share on other sites More sharing options...
Rivernuggets Posted July 28, 2020 Share Posted July 28, 2020 It's all about the options. Let us know what you decide. Quote Link to comment Share on other sites More sharing options...
Lbk Posted July 29, 2020 Author Share Posted July 29, 2020 I run a splitter off the sub out to the hafler then one channel to each sub. Had to play with the amp to get the balance right between the 2 subs. Too much power to the DIY behind the sofa and you could hear it's location. I was a little surprised that with some tuning how well I got the DIY to match the b15. Been trying to get my soundfield wide and deep, 2nd sub did help some. Quote Link to comment Share on other sites More sharing options...
OO1 Posted July 29, 2020 Share Posted July 29, 2020 3 minutes ago, Lbk said: I was a little surprised that with some tuning how well I got the DIY to match the b15. Been trying to get my soundfield wide and deep, 2nd sub did help some a sub is basically just another speaker ---either it gets too much power or not enough , hit the sweet spot and you're ok ---- Quote Link to comment Share on other sites More sharing options...
Iteachstem Posted August 3, 2020 Share Posted August 3, 2020 A little fun reading for everyone. I like the idea, but even placing 1 or 2 subs in most rooms can sometimes be tricky (and that's even before the wife factor) ...now, trying to properly locate 4 subs in an average room...good luck. https://www.theabsolutesound.com/articles/audiokinesis-swarm-subwoofer-system/ Quote Link to comment Share on other sites More sharing options...
Lbk Posted August 3, 2020 Author Share Posted August 3, 2020 11 minutes ago, Iteachstem said: A little fun reading for everyone. I like the idea, but even placing 1 or 2 subs in most rooms can sometimes be tricky (and that's even before the wife factor) ...now, trying to properly locate 4 subs in an average room...good luck. https://www.theabsolutesound.com/articles/audiokinesis-swarm-subwoofer-system/ From what I've read my room 11by 17 by 8 are good dimension for a system. Took me longer to set up my chorus II's then the 2 subs. I build an f20 I need to get set up later this month, get to start all over. Probably lose the DIY and run the f20 upfront as a TV stand and the b15 will go somewhere. Maybe try it behind the sofa. Quote Link to comment Share on other sites More sharing options...
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