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post #11 of 15
Thread Starter 
Quote:
Originally Posted by identitycrisis View Post

I was under the impression that since he has pairs in each room and they are home run, that they are stereo sets. It certainly doesn't sound like they're in series room to room.

Running 15 pairs in a home driven off of a quality multi zone amplifier would be fine. I may have said multi channel in my previous post, my error. I never meant to imply running all 15 in parallel off of one speaker output was a good idea. But you could double up zones that are close by for sure.

For smaller systems we used to use a Home theater receiver to switch outputs, and send the signal to a multi zone amplifier or speaker selector. Or, on bigger systems we had a speaker controller such as a crestron or speakercraft multi channel amp send the audio to the speakers based on what zone was on. We then had a keypad on the wall run over a cat 5 cable or cresnet. Each wall keypad had either several buttons you could select cable/cd/radio/xm, Vol Up/Down, etc...or a small screen with a scroll wheel to select inputs and volume up and down controls. I did several houses in this method, not all with 15 pairs of speakers, but the method is sound, and did not need to be a 70v system. I don't see why this couldn't be reproduced on a more cost effective scale, just may not have the fancy controls with the in wall keypads.

I thought, typically a 70v system was for running multiple speakers in series, not in parallel in an industrial or commercial environment? I honestly never set one up during my time doing home theater and whole house audio, so I don't know.

I like billbartuska's recommendation, but that will likely not be the most cost effective solution. Dzillas monoprice 6 channel selector is a good idea, that is along the lines of what I was thinking. You can use a home theater receiver with a zone 2, or a stereo receiver, and use that to control the audio sources, then send the signal to a speaker selector. I would try to find one that uses an IR Remote though, then you could get a DIY universal remote like a logitech harmony to control the sources.

Smarthome sells some keypad IR Emitter systems you could use to control the zones in each room too. But it really depends on what kind of money you (or your parents) want to spend on this, I also don't know how robust they are.

again, its been several years since I did this stuff. I don't want to mislead, but in the 2 and a half years I worked with this stuff, I installed countless speakercraft whole house audio controller designed to do exactly what you're looking for.


That speakercraft system sounds exactly like what was in here. They just don't need something that high end and controllable.

Good news (I think?) is that I was a complete idiot when counting stuff, Its 28 wires in the cabinet, so thats only 14 speakers, 7 pairs of wires (But I still counted more than that many holes, so maybe some are run in sequence?). I'm still hoping that the monoprice 6 channel is the way to go. My parents currently have an ancient Sony TA-AV521 home theater unit with an A and B zones. Back of the unit says 250W, but the spec sheet listed says 135 per channel. The rear has outputs for Front A, Front B, Rear, and Center. Would I be able to run one of those monoprices off each of the Front A/Front B, or will I need an external amp/new receiver? Sorry for my ignorance on the matter.
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post #12 of 15
Quote:
Originally Posted by piemasterp View Post

That speakercraft system sounds exactly like what was in here. They just don't need something that high end and controllable.

Good news (I think?) is that I was a complete idiot when counting stuff, Its 28 wires in the cabinet, so thats only 14 speakers, 7 pairs of wires (But I still counted more than that many holes, so maybe some are run in sequence?). I'm still hoping that the monoprice 6 channel is the way to go. My parents currently have an ancient Sony TA-AV521 home theater unit with an A and B zones. Back of the unit says 250W, but the spec sheet listed says 135 per channel. The rear has outputs for Front A, Front B, Rear, and Center. Would I be able to run one of those monoprices off each of the Front A/Front B, or will I need an external amp/new receiver? Sorry for my ignorance on the matter.


Get a Real Stereo Amp.

Sony Amps are bottom of the barrel, and by far are the worst receivers/amps to buy.

Also Channel A and B are tied to the same amp, and just ran parallel internally. It is not two independent amps. More for the ability to have speakers in two locations, while giving the user the ability to switch. Both should not be activated at the same time, unless you have two 16ohm speakers connected.


I would go the way of picking up a couple cheap t-amps, and using a main unit as the preamp for them. As well as powering one of the selectors.
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post #13 of 15
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Ok, let my try to get this all straight. What I need to do is:

1. Get a receiver (Since I'm running dedicated amps with the speaker selectors I can get one with an A and B channel, and run "A" to amp #1, and "B" to amp #2)
2. Get 2 of the Amps recommended by you, and connect to the receiver, "A" R&L to one, "B" R&L to the other
3. connect the speaker selector to the amp
4. connect wires to the speaker selector

And even though those T amps are only 20-50W, this will still be a better solution than running the speaker selectors straight off the existing receiver?

EDIT: I just remembered what you said about A and B run in parallel. Is there a way I can still run the two speaker selectors at the same time, even with a new receiver? Or is that what running the two external amps will help with?
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post #14 of 15
Quote:
Originally Posted by piemasterp View Post

Ok, let my try to get this all straight. What I need to do is:

1. Get a receiver (Since I'm running dedicated amps with the speaker selectors I can get one with an A and B channel, and run "A" to amp #1, and "B" to amp #2)
2. Get 2 of the Amps recommended by you, and connect to the receiver, "A" R&L to one, "B" R&L to the other
3. connect the speaker selector to the amp
4. connect wires to the speaker selector

And even though those T amps are only 20-50W, this will still be a better solution than running the speaker selectors straight off the existing receiver?

EDIT: I just remembered what you said about A and B run in parallel. Is there a way I can still run the two speaker selectors at the same time, even with a new receiver? Or is that what running the two external amps will help with?

You can not run two selectors at the same time from the same amp, so have one connected to channel A and one to channel B means you can only use one at a time. Without risking amp damage.


20watts of power is more than enough, 50 watts would be overkill. 20watts of power will still make the speakers get loud, so unless you want to turn your house into a club. They should be fine.


Connect one selector to the main amp, pref the speakers that will need to be the loudest. Such as outdoor speakers or speakers in larger rooms. This way you don't need to put more load onto the smaller amps. You will then want to feed the small amps from the pre-out of the stereo receiver. This will allow you to control source and master volume from the main unit.

Craigslist tends to have pretty good deals on older stereo equipment. Maybe even something from the 70's, if you like that old classic sliver knob look.


Otherwise I would get something like this

http://www.accessories4less.com/make-a-store/item/onktx8050/onkyo-tx-8050-80watts-x-2ch-network-stereo-receiver/1.html

Has Preouts and zone 2 outs. Zone 2 outputs will allow you to have two different sources playing at the same time in different rooms.

Also has network options, for things like XM-Radio, Pandora, Last.FM, and should be able to push music from a PC to the unit as well.

Can also be connected to an external home IR system as well.

Pick that up and 1-2 small amps of your choosing. Should make for a fine system.
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post #15 of 15
You need some real power to that stuff and some switches.








That is my simple guess. Probably came out of that house
Edited by hertz9753 - 10/26/15 at 2:08am
    
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