My pre outs speaker bridge and over loading

busterapco

I have the Onkyo 805s and am powering two 500 Watt speakers but its only 130 watts per channel. In the book it tells you how to wire the amp to get out 200 Watts per channel to the front speakers, but I lose my 7.1 to a 5.1. Okay, I do not want to do that, but I do want more power! So, I bought a power amp 400 watts per 8? channel. Okay its setting here, I have the pre outs on the amp, I can run the pre out front two speakers to the amp and then to the front speakers. Now as it almost sounds stupid to ask, Ill do it anyway, can I still have front speaker connected? What I mean is

Front AMP power 2 speakers
Front non amp Powered 2 speakers
and the rest of them giving me 9 speakers all together.

I have not done it because I think it would over load the amp, but the sub is on a pre out and such.

If I use a 600 watts per channel amp on a 500 watts speaker, what problems could occur? I just asking because the sales man at the store said I should go with the 400 watt instead of the 600... and it was a lose for them to do that so I believed him, but you people here know more then them! So, did I make a wise choice? Im fairly experienced with speakers and receivers and such, can tell anyone how to do anything, but when it comes to your own stuff I dont experiment as much

seeclear

I would just run the speaks off the pre's on the 805, through the amp and be done with it. If you connect the pre outs, I think you won't get any output to the speaker connections on the receiver anyway, but I might be wrong about that.

Face

What kind of amp are you using?

You should be fine using 600wpc, just don't max out the volume knob.

Ricardo

If I understand correctly, what he's asking is if he can connect a pair of speakers to the receiver's front speaker outputs, while also having the front pre outs powering a second pair of speakers through the amp. I would say that technically this could be done... I am not sure I understand what would you do with 9 speakers though.

busterapco

I have two subs, I like the sound better.

xandra

In the book it tells you how to wire the amp to get out 200 Watts per channel to the front speakers

Actually, the bridging (as compared to Bi-Amping*) is only available for the 875, NOT the 805.

see title of topic Page 24 aptly named: "Bridging the Front Speakers (TX-SR875 only)"

*Given your situation there'd be no advantage to Bi-Amping

Have you tried just using the amp to power your fronts? You might be pleasantly surprised.

tonyb

When you connect an amp from your receiver,be it 2 channel amp or 7 channel amp,the receivers amp section for that channel becomes non operative.You cannot combine the two.However,you can hook up the fronts to the amp and let the receiver power your other speakers.Powered subs have no bearing on this as they have their own amp built in.

busterapco

I do see what your saying about where it says in the book about it being only the 875 model. So, I called up Onkyo and talked to a tech person and he said to bi-amp this amp you would take the negative from the sr and sl and switch them with the neg fr and fl speaker. All my experience tells me that wont make a difference, but thats what he said. I decided not to do that anyway science I got the new amp. Okay, Yes I love the new amp, I still have to turn it to loud to get the bass that I want out of it tho. The vocals are just as loud as the bass and the eq on the Receiver does not change it enough (to notice, to me) for me to like it.

The sound is really amazing, it gets loud enough that people at the park, 2 blocks away, are jamming to the music. Concert level for sure, but the bass is balanced with the rest of the music (like normal people would like I guess) but sometimes you just want to give it more humph without the park being able to hear the vocals, just hear the bass if you know what I mean.

I have an old eq, you think I can run rca cables from the pre out FL and FR to that and then from there to the amp and then to the speakers? That probably fix it right? Any ideas would help. Here are some pictures of my set up, any recommendation please let me know.


So I bought those funky wires to connect to the back of the amp RCA, (No humming or any other sound, so I guess its doing good)

Currently the speaker is connected together. If you think it work better for me the other way, please explain how to hook it up in a way I would like it.

Here is the amp I got.

This is my wall of Electronics (Had to make these shelves because the dang Receiver is HUGE) Plus everything is located were the Projector is in the back (pain) Had to get a cordless Wii bar in order to set everything up. HA

Not hooked up yet, but is the one I am talking about hooking up.

Center is the CV model as well with the same bridge connection. $140 version.

These are my Rear and Surround speakers from the old system. (Also the ones I want to get rid of for some Polk! if you have any recommendations on that. )

This is the CV-215 3 way speaker. Huge 2 x 15" speakers in each box

140 watts per channel 2 channel amp. Can be bridged to 280... Nothing amazing but if you can think of what I can do with it, besides use it as a curling weight, I be happy to try it out.
Thanks for all your help, I do thank you for the time you spent explain everything.