Hi Everyone,
I know this topic has been answered so many times but I still find myself confused. Based on my current setup, I wanted to know what many of you would do in my situation. The goal is a five zone audio system where I can listed to a different sources. You will see the components I have below and the first time I hooked it up, the Niles SS-6 speaker selector I have really got hot. I then had the brilliant idea of not hooking a older Techniques A/V Receiver I have to the "Zone 2" Out jack of the Onkyo and the hooked the Speaker Selector to that. The problem with that configuration is that I cannot get much juice out to my Rock Speakers and a couple of the other zones. When I turn the volume up on either the Onkyo or the Techniques, the Techniques shuts itself off.
Here are the components I have:
Receiver Onkyo 805
VMS-300 Impedance Matching Volume Control - five of them, one for each zone
. Power rating: 300 watts peak 20Hz-20kHz, 8 ohms,
. 100 watts RMS per channel
. Impedance matching 2x, 4x, 8x or 16x positions
Each of these impedance controls has a set of speakers connected to it and then from the controllers back to the speaker selector.
Niles ss-6 Speaker Selector Max 100W
HT603R In ceiling speakers x 3 pair. These are not that great but handles 100W per speaker at "8 ohms nominal"
1 Pair of rock speakers that are supposed to be up to 200 Watts per speaker
1 Pair of Proficient Audio Outdoor speakers at 150 Watts per speaker.
I used 14AWG wire in almost all locations. In the Onkyo I have my DVD player, Comcast, Apple TV, and Sirius so I would like to continue using the Onkyo so I can listen to these sources in the other zones.
Any recommendations would be greatly appreciated.
Thanks,
Jtw
Five zones is going to be pushing it for any receiver by itself. The bottom line is that you are just asking to much from a basic A/V receiver in this type of scenario. Instead, you really want an amplifier that is dedicated for audio distribution, preferably one with multi channel design.
I've personally picked up a few of these off eBay for myself and some installations and simply search for '12 channel amplifier' on eBay and get some hits back. They aren't really 'cheap', but then again, they aren't really cheap. I use two RMB-1048, 8-channel amplifiers from Rotel, as well as a Sonance 1250 amplifier to handle all the speakers in my home. While I have other means of sending audio to them, in your case you would want to connect to zone 2 or zone 3 of the receiver and then power the speakers from a separate amplifier that has solid power on two channels at the very least (through the selector) or directly to the speakers.
IMPORTANT - You can only have impedence matching occur at one location! I would personally NOT do impedence matching at the volume control if you have an impedence matching speaker selector. On the other hand, if you have impedence matching volume controls, you don't need a speaker selector at all, just wire-tie everything together.
In my opinion, getting something like this, and running the audio out of zone two from the receiver into it, should give you solid power to the rooms you need it in, and for the outdoor zone you can jumper a couple of zones together for more power. Make sure to set the volume controls to have NO impedence matching at all.
http://cgi.ebay.com/Speakercraft-12-Channel-Amplifier-BB1235_W0QQitemZ230267429285QQihZ013QQcategoryZ14983QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
If you just want to start with a single amplifier to get audio out, then I would go with the Audiosource AMP200 which you can find on ebay (search: 'audiosource amplifier') and you can get it for under 200 bucks.
Once again - set the volume controls to NOT have any impedence matching, then use the speaker selector to handle the impedence matching.
If you don't find that you have enough audio in one room, you can jumper out of the Audiosource amp to a second amplifier that is dedicated to a specific zone, or you can use the zone 3 out of the receiver to a third zone. Better yet, if you have a 5.1 setup, you can use the extra two channels of the Onkyo and use it to power the 'extra' zone and then use zone 3 for everything else.
There's no 'perfect' way to do things, but you have lots of options. In my opinion, amplifying everything separately gives you the greatest reliability and the most control overall, and I certainly wouldn't use the impedence matching built into the volume controls unless I absolutely had to.