Yamaha rx2700 and speakercraft s4dc

[adotta]

Hello!

First post here and sorry if this has been already asked. I'm at work and a quick search has lead me to some answers, but not all.

some speakercraft switches flat out state that they have impedance protection. I'm concerned with the s4dc switch because the documentation does not specifically state that it has impedance protection. It does however state that it has a "protection"switch in the rear of the unit that you can turn on or off. Would this be impedance protection?

I purchased a new home with a built in system. 5.1 in the family room. The kitchen, pool, deck and garage also have two speakers that are wired to the speakercraft selector box.

The owner left the Speakercraft sub woofer but took the receiver. I purchased a Yamaha rx2700 and was wondering if I can run the speakercraft switch off zone two with the internal amp of the Yamaha active without impedence issues.

Also, the sub has analog in and analog out. Should/could I run zone two over to the SW and then to the box using the built in amp in the SW? (I think it has a built in amp) and running the zone two setting on the Yamaha as "EXT?"

Thanks and I hope my question makes sense

edited: I'm not sure of the sub woofer model number as I'm at work.

 

[adk highlander]

Goodmorning Adotta and welcome to the forum.

Your first question is yes the protection mode should be impedance protection. A link to your manual is here. It says for 3 pairs of 8ohm speakers you should have the switch to on. Use the one in the back so it is always on.

If you are going to use 4 pairs of speakers I would get an extra amp and not use the surround back/zone 2 amp. I would say that is just too much of a load. Just find an Audiosource amp1/amp 100 for under 75 bucks and you will be much better off.

To use the sub in your theater room just use the sub preout and run a single rca cable to the sub. This is considering the sub has an amp. If it does not you will need to get another amp to run from the sub out on the receiver to the amp and then to the sub. You will not use the sub for any zone 2 configuration.

 

[adotta]

Thanks for the reply.

I was a little confusing. The kitchen has 2 speakers. The Deck has two speakers, the pool area has two speakers and the garage has two speakers so at any given time, I would be running two speakers at a minimum and maybe four if I have guests over and they are on the deck and/or in the pool.

My question regarding the sub woofer pertained more to the fact that it may have an onboard amp. I was wondering if I could use that onboard amp to power the speakers noted above v. the internal amp of the Receiver.

I got the sub woofer model from the wife. It is a Speakercraft bassx-10 sub woofer.

Here's an image of the back of a similar speakercraft amp. Please note the R and L input and R and L outputs. That is where I'd run Zone 2 of the Yamaha to and set the zone two to run on an external amp v. internally.

h t tp://img.photobucket.com/albums/v227/acery/9725058side1big.j p g

Sorry for the cut and paste. I dont have 5 posts yet. Just remove the spaces to get it to work

If it can be done, I'd go from Zone 2 running on an ext amp which would run to -> sub woofer amp -> speakercraft switch box -> external speakers.

 

[adk highlander]

Sorry, you cannot use the amp in the sub to power any other speakers. It will only power itself and will not power any external speakers.

I would say your best bet is to use an external amp out of the zone 2 to power your speakers using the speakercraft s4dc with the protection set to on.