draynes Posted March 12, 2008 Share Posted March 12, 2008 Does any one know what receiver that are out on the market that can route the rear channels to the fronts for more power? The only ones I have found so far are the Onkyo's 875, 905. Quote Link to comment Share on other sites More sharing options...
DrWho Posted March 12, 2008 Share Posted March 12, 2008 Why would you want to do that? Quote Link to comment Share on other sites More sharing options...
kelA Posted March 12, 2008 Share Posted March 12, 2008 If you are talking about a form of biamping- using the 2 unused rear channels of a 7.1 receiver in a 5.1 configuration, then I believe the Denon 2808,3808, 4308 will do it as well. By hooking up your speakers in this manner, you generally lose any Zone 2 capability. It is debatable if it is beneficial to biamp in this method. Quote Link to comment Share on other sites More sharing options...
Guest " " Posted March 12, 2008 Share Posted March 12, 2008 Onkyo TX-NR1000 can bridge two rears with 2 mains. results in 320wpc@8ohms, 640wpc@4oms, etc Quote Link to comment Share on other sites More sharing options...
draynes Posted March 12, 2008 Author Share Posted March 12, 2008 Well I only have room for a five channel setup. But I would like to get a 7.1 avr for in the future. I was trying to get the most power to the RF-7. So if I am going to buy one I would like to get one that has that feature. To my knowledge those Onkyo actually bridge the amp internally. Which is not the as bi amping. Unless I am mistaken. I do not want to bi-amp I am looking to bridge the rear channels and the front's to get the most power. I am stuck in my current house due to military and not interested in hanging speakers any were. Quote Link to comment Share on other sites More sharing options...
Guest " " Posted March 12, 2008 Share Posted March 12, 2008 The onkyo TX-NR1000 can do both bridging and bi-amping using unused channels. Quote Link to comment Share on other sites More sharing options...
nezff Posted March 12, 2008 Share Posted March 12, 2008 i know my onkyo 605 will do it, it even says it on the back panel. rear channel for biamping. Quote Link to comment Share on other sites More sharing options...
DrWho Posted March 12, 2008 Share Posted March 12, 2008 Well I only have room for a five channel setup. But I would like to get a 7.1 avr for in the future. I was trying to get the most power to the RF-7. So if I am going to buy one I would like to get one that has that feature. To my knowledge those Onkyo actually bridge the amp internally. Which is not the as bi amping. Unless I am mistaken. I do not want to bi-amp I am looking to bridge the rear channels and the front's to get the most power. I am stuck in my current house due to military and not interested in hanging speakers any were. The RF-7's actually benefit from amps with higher damping factors - not more power handling. I think the confusion arises because most amps with more power also happen to have better damping, but it's the better damping that is improving the sound. That said, bridging any amplifier actually cuts the damping in half. So in your situation, adding more power by bridging to the rear channel amps is going to reduce the sound quality while giving you 3dB more max SPL. I dunno if the tradeoff is worth it. I would be sooner inclined to find yourself a separate power amp for the mains and drive it off the LR preouts from the receiver. Quote Link to comment Share on other sites More sharing options...
draynes Posted March 12, 2008 Author Share Posted March 12, 2008 Thank you speakerfritz. I am try to find receivers that bridge the power from the rears to the fronts. Like the TX-NR1000. I am not interested in messing with bi-amping i don't want to mess with the speakers to much. Also thank you DrWho. I don't know why I didn't think that in the first place. I guess I just got tied up in the plethora of specifications. Quote Link to comment Share on other sites More sharing options...
bigdaddy Posted March 13, 2008 Share Posted March 13, 2008 Dr. Who made the most realistic statement IMO. Quote Link to comment Share on other sites More sharing options...
oldbuckster Posted March 14, 2008 Share Posted March 14, 2008 Can't any receiver with ZONES 2 and 3 be used to do that? Someone posted here awhile ago about Bi-amping with Zones speaker outputs, not sure what he meant ................. Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted March 14, 2008 Share Posted March 14, 2008 To the best of my knowledge, this is not TRUE bi-amping in that you don't electronically separate the frequencies before the amp channels, so there is no efficiency gain or tweeter protection. Both amps are running full bandwidth. In a perfect world, you'd double the wattage by this method, thereby gaining a whopping 3 db in your system. More than likely it's much less than this because you won't be pumping 90 or 120 watts into your tweeter horn. It's really a matter of power supply. Most modern receivers are pretty tapped out running 5 speakers, much less 7 (note how much true power output per channel drops when you go from 2 to 5 to 7 channels). I think it's a marketing gimmick by manufacturers to make people think they aren't wasting money by buying 7.1 when all most people need is 5.1. If you need more power, do as Doc says- get a nice power amp and use it for the main two speakers, thereby freeing receiver power supply for your center and side surrounds. You'll also get to use Zone 2 when you do this. And you'll gain REAL wattage, probably better damping factor, and lower THD. Plus it'll look cooler. M Quote Link to comment Share on other sites More sharing options...
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