SDA-SRS speaker and Yamaha RS700

Tallygator83

Can someone tell me if the Yamaha RS700 receiver is a common ground receiver? I am also looking to purchase the missing interconnect cable and was wondering what I needed to know to tell Polk which type of interconnect wire I needed to purchase. Would I be able to find this out from the Serial Number? I don't believe any sort of upgrades or modifications have been done to these as my aunt was original owner.

I am also assuming I can set the Yamaha RS700 to low impedance when using a bi-wire set up. Is that correct? I just wanted to make sure before I did so I didn't blow up my new receiver or speakers.

Tallygator83

dpowell

Looks like you have the old blade/blade IC. Not sure on your receiver but if you have a multimeter with a continuity tester, you can test for continuity between the black common speaker outputs on the back. With it being an AVR, it is likely common ground. One thing for certain, you are going to want an external power amp to properly drive those bad boys! Spend some time listening to them and enjoy them, then consider some upgrades. You'll see many threads here on upgrades that will multiply your listening pleasure. The capacitors and resistors on the crossovers in those speakers are long past their end of life.

Tallygator83

Thanks for the quick response!! I'll be honest, I'm not the most experienced with this type of stuff and I didn't even know what I had until I started researching these speakers. I don't know if I have the money to invest in an external power amp at the moment but I'm hoping this Yamaha can get me by for now. I am really excited to get the interconnect wire and hear how these speakers should properly sound.

I'm assuming since these speakers are 4 ohms that I can use the low impedance setting on my new receiver using the bi-wire setup without any problems but would like someone with more experience than me to verify that if possible. Also how would I find out if my new receiver is a common ground one besides testing it? Can I call Yamaha and ask?

tophatjohnny

At least Polk still makes the Blade/Blade cable! Looks like you have a great pair of speakers there! nice!!

cnh

Tallygator83 wrote: »

Thanks for the quick response!! I'll be honest, I'm not the most experienced with this type of stuff and I didn't even know what I had until I started researching these speakers. I don't know if I have the money to invest in an external power amp at the moment but I'm hoping this Yamaha can get me by for now. I am really excited to get the interconnect wire and hear how these speakers should properly sound.

I'm assuming since these speakers are 4 ohms that I can use the low impedance setting on my new receiver using the bi-wire setup without any problems but would like someone with more experience than me to verify that if possible. Also how would I find out if my new receiver is a common ground one besides testing it? Can I call Yamaha and ask?

You should check with Yamaha, but I can't imagine that receiver NOT being a common ground. I have a lower model Yamaha integrated that shares a lot of its design and is a common ground!

However, the receiver having a "limiter" switch on the back (for impedance) means that it won't be able to properly drive your speakers. NOT enough POWER! It is unlikely that that Yamaha can put out a real 100 watts x 2 at 4 ohms! And those SDAs will "laugh" at that!

Fortunately, there are pre-outs on the receiver. So think about getting a "real" amp of 250-350 watts x 2 or more for you SDAs! Or if you plan on using the yammie, don't push it because it will BLOW!

cnh

F1nut

It's a receiver, it is common ground.

Don't bother bi-wiring. Instead replace the stock jumpers with high quality speaker cable.

As everyone else has mentioned, you need an amp. In the meantime, keep the volume level down.

cstmar01

I own the RS700 for a bedroom system and while its OK its not going to do the SRS' justice. You do need an amp and you can use the pre outs from the RS700 to the power amp and then can always look for a 2 channel pre amp down the road.