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Post by mbunting on Oct 19, 2018 11:11:13 GMT -5
Hello all
I am purchasing the following speakers for a new 7.1.4 Atmos setup in my new home:
4x Revel F208 (Front & Rear Surrounds)
1x Revel C208 (Center)
2x Revel M106 (Side surrounds)
My Sub is the SVS PB13 Ultra and my ceiling atmos speakers are the RSL C34E's. Receiver is a Yamaha 3070...but can see myself replacing it within the next couple of years.
I have almost pulled the trigger on the XPA-11 a handful of times. My concern is that I should maybe want the same "juice" going to at least the 4x F208s and also to the 1x C208...wouldn't I? Maybe even to the M106s as well? If you were me, what would you want to do? What do you recommend?
Thanks for any/all help!
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Post by stads77 on Oct 19, 2018 11:14:00 GMT -5
How big is your theater room? Unless it’s huge, can’t see why the XPA-11 isn’t a great option.
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Post by davidl81 on Oct 19, 2018 11:17:34 GMT -5
Hello all I am purchasing the following speakers for a new 7.1.4 Atmos setup in my new home: 4x Revel F208 (Front & Rear Surrounds) 1x Revel C208 (Center) 2x Revel M106 (Side surrounds) My Sub is the SVS PB13 Ultra and my ceiling atmos speakers are the RSL C34E's. Receiver is a Yamaha 3070...but can see myself replacing it within the next couple of years. I have almost pulled the trigger on the XPA-11 a handful of times. My concern is that I should maybe want the same "juice" going to at least the 4x F208s and also to the 1x C208...wouldn't I? Maybe even to the M106s as well? If you were me, what would you want to do? What do you recommend? Thanks for any/all help! I am a big fan of the L/C/R speakers getting the most power and then the other 7 speakers getting less (they won’t need near as much as the L/C/R speakers need). If you can cost wise I would do the XPA-7 and XPA-3 combo. Or if cost is a factor do the XPA-3 and the BasX A-700. This is just my opinion. |
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Post by davidl81 on Oct 19, 2018 11:33:53 GMT -5
Hello all I am purchasing the following speakers for a new 7.1.4 Atmos setup in my new home: 4x Revel F208 (Front & Rear Surrounds) 1x Revel C208 (Center) 2x Revel M106 (Side surrounds) My Sub is the SVS PB13 Ultra and my ceiling atmos speakers are the RSL C34E's. Receiver is a Yamaha 3070...but can see myself replacing it within the next couple of years. I have almost pulled the trigger on the XPA-11 a handful of times. My concern is that I should maybe want the same "juice" going to at least the 4x F208s and also to the 1x C208...wouldn't I? Maybe even to the M106s as well? If you were me, what would you want to do? What do you recommend? Thanks for any/all help! I am a big fan of the L/C/R speakers getting the most power and then the other 7 speakers getting less (they won’t need near as much as the L/C/R speakers need. If you can cost wise I would do the XPA-7 and XPA-3 combo. Or if cost is a factor do the XPA-3 and the BasX A-700. This is just my opinion. You know, after really looking more at the specs on the XPA-11 that actually may be a great call for your setup. The unit has three "mono" blades (300 WPC 1ch driven, same spec as XPA-3) and four "stereo" blades rated at 80 WPC. In a HT setup I don't know if you would ever hear a difference between the XPA-11 and the XPA-3/XPA-7 combo. There will never be a time where all channels are driven to max power, and the way the power supply works on the Gen 3 amps you will always have power available to the channels that need them. You would save $1200 on the XPA-11 set up versus the XPA-3/XPA-7 and you would only need one amp versus two. Sure your surround speakers are never getting the full amount of power they can handle, but they would never see that wattage even with the XPA-7 since the amount of signal being sent to those speakers is so small compared to the L/C/R speakers. |
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Post by rbk123 on Oct 19, 2018 11:47:05 GMT -5
David's analysis is right on in both posts. I would only add if you broke up the amps to something like he mention 3/7 or maybe a 5/5, etc.. I wouldn't consider new for the same cost reasons he mentioned. Rather I would go used as I think the current XPA line is too overpriced.
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Post by davidl81 on Oct 19, 2018 11:54:36 GMT -5
FYI, I am a dummy. XPA-3 and XPA-7 would only give him 10 channels and the OP needs 11. One day I will learn how to math.
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Post by leonski on Oct 19, 2018 16:35:23 GMT -5
Part of the equation is the SENSITIVITY of the various speakers.
3db increase is 1/2 or 2x the power required for same level.....All other things being equal.
So, if your main / center speakers are 89db sensitive and the rest are higher sensitvity by At Least 3db, than you are fine with the same or less power doing to those speakers.
If your other speakers are LESS sensitive, again by at least 3db, than the main / center speakers, the same power level might come in handy, especially considering the generally lower demands on those channels.
According to Stereophile who actually MEASURES stuff, the Performa3 208 is 89db sensitive and should have a 'good' 4 ohm rated amp due to a low impedance Dip at the same frequency as a large Phase Angle.
I can't even imagine the hassle of 11 active amp channels. Speaker wire runs alone would drive me around the bend. I'd probably resport to distributed amps, nearer the speakers in order to minimize speaker wire
runs. This means NO centralized 11 channel amp. The difference in the mile or so of speaker wire you'd need with this kind of setup would be offset by the additional cost of distributed amps and not needing to own
stock in Belden to afford speaker wire of good quality. Some of those long runs should have one gauge Larget than you'd 'think', simply based on destroying the amps Damping with large amounts of wire run resistance.
Maybe a 3 channel amp like the XPA, available as a 'triple' than a bunch of the new 'D' amps......parked in pairs behind the various speakers. Longer runs of balanced are better than single ended and you'll use far less speaker wire.
Make certain you have at least 2 dedicated 20 amp circuits for the new amps.
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Post by mbunting on Oct 22, 2018 11:10:24 GMT -5
Thank you all for the great feedback and information!
I went ahead and ordered both the XPA-7 and the A5175. The XPA-7 will handle the 7 main/floor speakers and the A5175 will handle the 4 Atmos ceiling speakers. This should do the trick!
One additional question...I am wiring in a couple dedicated 20amp circuits that will be used solely for the amps. Are the Emotiva power cables 20amp with the 20amp connector/plug included with the Amp or do I need to purchase a proper 20amp power cable? Thanks!
UPDATE: Ahhhh...I now realize that I can plug the power cable that comes with the amp into the 20amp outlet, as the receptacle accepts both 15amp and 20amp plugs...
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Post by leonski on Oct 22, 2018 14:16:41 GMT -5
Upgrading the power cable to the XPA-7 might not be a bad idea. Pangea makes a 14ga which is probably larger than 'stock' which might even be 16, though I don't see HOW. If you are DIY inclined, Belden make #83803, a 12 ga. shielded type of very good reputation. www.parts-express.com/belden-83803-12-awg-3-conductor-power-cable-1-ft-usa--100-790Do a search for connectors. Wattgate, is I think the budget choice while other choices will cost $$$ Other premade include Signal Cable and a few others I don't remember at this time. If you are up for a group buy, let me know. I'd like to make power cords for my amps. If we can justify 100 feet, the discount is worthwhile. |
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