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Two Zone Indoor/Outdoor System
This thread has 7 replies. Displaying all posts.
Post 1 made on Thursday October 3, 2002 at 01:56
Gleski
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My friend wants me to design and install a simple and inexpensive two zone system. One zone is outside in a 15'd x 15'w x 10'h open gazebo and the second zone is in three interior rooms.

I want to put four Klipsch SA-1 outdoor speakers in each corner of the gazebo pointing towards the center with the left and right channels at opposite corners, wired to an IM volume control and then wired into the zone 2 output of his existing Yamaha RX-V995 receiver.

I want to then connect each indoor rooms speakers to a volume control, wire those to an IM speaker selector and then wire that to the receivers main speaker output. This will give him control through the receiver to have two different sources feeding each zone without having to buy additional amps.

I would like your opinions on if this design will work well. I know this is probably the chapest way to go. I would also like to get your opinions on the Klipsch line of outdoor speakers and my wiring them L-R-L-R.

Thanks.
Post 2 made on Thursday October 3, 2002 at 15:19
NineBallMan
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The idea will work with help. If you want 2 seperate zones then you will need an additional amplifier. Connect the zone 2 outputs from the 995 to the amp.
You said you want all the indoor speakers to "a" volume control, use the 995's volume control through a impedance matching device such as a Sonance SS-4 or a Pheonix Gold SAM-100. SAM-100 will be better. It allows for expansion.
Bryan Kirkland
OP | Post 3 made on Thursday October 3, 2002 at 18:10
Gleski
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Sorry, Let me clarify. The indoor speakers will be connected to a seperate volume control in each corresponding room, thus allowing for seperate volume levels in each room.
Post 4 made on Thursday October 3, 2002 at 19:12
Matt
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I guess I never thought much of wiring L and R in an outdoor situation. I think you simply cause more cancellations that generate stereo imaging. I'd mono the signal myself and use half the speakers.

Remember, if they are using the main outputs for surround sound, the 'other' rooms will probably only get the main L and R effects etc. Plus, does the receiver 'borrow' the center or rear channel amplifier to generate the 2nd zone amplified sound?
OP | Post 5 made on Thursday October 3, 2002 at 23:49
Gleski
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So you're saying to use only two speakers in a situation like this. Then why would I go mono when there will only be one left and one right channel.

The 2nd zone will need an aditional amp as NineBallMan stated. The receiver is only going to be used for music (i.e. radio, cd, etc.) so outputting from the mains won't be a problem.
Post 6 made on Friday October 4, 2002 at 20:21
Matt
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If your heart is set on it, then go for it....but you could bridge your amp mono (if it's capable) for more output...
Post 7 made on Saturday October 5, 2002 at 13:05
Ernie Bornn-Gilman
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Matt, your suggestion for "monolizing" is valid but usually introduces more difficulty to the situation than necessary. I think the theory of sound cancellation will be much worse than the practice of it here -- you won't notice.

We stick with stereo, and wire them L,R,L,R, so L's are in opposite corners and R's are in the other opposite corners.

This works well if the space is used with people mostly along the walls (for instance, four outdoor speakers around a pool). If the gazebo will be used with perimeter seating, it will also work well. With this arrangement, no matter where you sit (except directly under one speaker), you hear two channels, which may not be better than mono in the particular location, but it will not be worse, so going mono is no improvement.

Using four speakers also helps eliminate what I call "The Woodstock Effect" -- some people are too close to speakers, so they go deaf, and others are too far away, so the sound is less than satisfying. More speakers mean they all can be at a lower volume yet fill the space more equally.

Does the 995's second zone output have a volume control on the 995? If it does, you only need a power amp. If it does not, you need an integrated amp or a power amp with input volume controls.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 8 made on Sunday October 13, 2002 at 23:59
ItsColdInMN
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If you're new to the forum, I'm not a professional installer, and make it very clear. But I'm more than the average DIYer, and once in a while I have good ideas. I'm going to agree with Matt, and disagree with Ernie. In the gazebo, I'd definitely go with Mono, since your stereo imaging will be shot to hell if you face 2 of the 4 directions, and be even worse if facing a particular single speaker. Facing a Left speaker will cause Right channel sound to be heard on both your right AND left. And vice versa for a Right channel speaker. Use a Monogizer volume control and 4 speakers OR a bridgeable amp and a mono volume control. This is primarily why it's a second zone system. If stereo imaging and sound quality were important, you'd probably use 2 high quality speakers, not ones in plastic cases, and a dedicated system to drive them. It's a background system which will probably be used for ambience. If stereo imaging is important, then just use 2 speakers. The advantage of mono sound in an environment where the listeners may not always be facing the intended direction, is that they will always hear the whole sound, not just what's recorded on the channel of the speaker that they're near. Depending on the size of the gazebo too, you may want to stick to 2 speakers.


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