|
|
Post by 27dnast on Jan 30, 2019 13:56:02 GMT -5
are powerful enough to drive SVS Prime Elevation speakers in an immersive sound configuration.
I have an XPA 5 driving my front three and side surrounds. Right now, my receiver is driving my rear surrounds and 6 ceiling mounted Atmos channels. I'm thinking about getting a pre/pro... so, would need an additional amp.
The amp would have two standard amp modules to drive the rear surrounds... and then I'm thinking about 3 stereo modules to supply the juice to Prime Elevations.
According to SVS: Elevation is 8 ohm, sensitivity: 87 dB, recommended power 20-150W.
The question is: will the 65W per channel be enough when volume is taken to reference levels?
|
|
|
|
Post by garbulky on Jan 30, 2019 13:59:53 GMT -5
I believe so. Remember for the most part you will be listening at a level of 1 to 2 watts. The unused portion of power can be used among the other channels. The front and centers use the most power.
|
|
|
|
Post by 27dnast on Jan 30, 2019 14:47:56 GMT -5
Not quite sure what you mean about power being used among the other channels... Aren't the modules in the XPA amps all isolated from one another? If I buy an XPA with two standard modules and 3 stereo modules, the stereo channels would only be drawing power from each 65W portion of their specific module. No?
|
|
|
|
Post by garbulky on Jan 30, 2019 16:00:34 GMT -5
Not quite sure what you mean about power being used among the other channels... Aren't the modules in the XPA amps all isolated from one another? If I buy an XPA with two standard modules and 3 stereo modules, the stereo channels would only be drawing power from each 65W portion of their specific module. No? No. They draw power from a common 2 or 3kilowatt power supply. Unused portions can be used where they are needed. But each module will max out according to its own capability. Edit: I now seee you are talking about 65 watt modules? I think there's no reason why that's not enough for surround sound |
|
|
|
Post by 27dnast on Jan 30, 2019 16:18:01 GMT -5
Yes. The system would be as follows:
XPA-5 driving front 3 channels and side surrounds.
New XPA amp house two single modules for rear surrounds... and three stereo modules (65 per channel) for six Prime Elevation Atmos Channels.
I just want to make sure, as I drive the system to loud reference levels, the 65 watt stereo output will be enough to allow the Elevation speakers to keep up without lacking power (whether it be for Atmos duty or playback of Auro-3D content... or multi-channel surround umpiring)
|
|
|
|
Post by davidl81 on Jan 30, 2019 16:26:30 GMT -5
You will have no issues at all with this setup. There will never be any point where those SVS speakers will need any more clean power than you get from the XPA amps stereo modules. I use the A-700 for my Atmos channels and they keep up perfectly fine with my XPA-5 and DR-2.
|
|
|
|
Post by Bonzo on Jan 30, 2019 17:51:59 GMT -5
Which generation XPA-5 do you have?
|
|
|
|
Post by 27dnast on Jan 30, 2019 18:56:01 GMT -5
2. Curious... why?
|
|
|
|
Post by Bonzo on Jan 30, 2019 19:16:31 GMT -5
Just looking at options. If it were Gen 3 you would have the OPTION to send it back and have modules added for $400. Knowing you have a Gen 2, you could do the wiring a little different. Use the 200 wpc XPA-5 Gen 2 to run your center, side, and back surrounds. Then use the new XPA-2-3s to run 300 wpc to your mains and the 65 to the ceiling. Or, buy an XPA-3-3s and run the LCR and ceilings off that, and let 1 channel go unused in your XPA-5. Just thinking out loud. |
|
|
|
Post by 27dnast on Jan 30, 2019 19:56:30 GMT -5
Looks like you're also confident the 65W per channel is more than enough for the Elevations?
|
|
|
|
Post by SteveH on Jan 30, 2019 20:31:21 GMT -5
I have an XPA Gen3 13-1-6S (12 65W channels and one 300W channel). The power supply is plenty strong enough to run the 300W center channel, the 65 watt channels for my two surround speakers, four Atmos ceiling speakers, two garage speakers and two patio speakers. When using the RMC-1 ALL STEREO mode, all of these speakers are cleanly driven and rather loudly. The power supply and audio channels are definitely driven harder in the ALL STEREO mode than they would be driven in a surround/movie mode. The 65 watts per channel is stated as RMS. I think you will be very happy with the 65 watts.
|
|
|
|
Post by 27dnast on Jan 30, 2019 21:11:25 GMT -5
I have an XPA Gen3 13-1-6S (12 65W channels and one 300W channel). The power supply is plenty strong enough to run the 300W center channel, the 65 watt channels for my two surround speakers, four Atmos ceiling speakers, two garage speakers and two patio speakers. When using the RMC-1 ALL STEREO mode, all of these speakers are cleanly driven and rather loudly. The power supply and audio channels are definitely driven harder in the ALL STEREO mode than they would be driven in a surround/movie mode. The 65 watts per channel is stated as RMS. I think you will be very happy with the 65 watts. Thanks for the input Steve... good points of reference. Thanks! |
|
|
|
Post by leonski on Jan 31, 2019 0:07:46 GMT -5
One minor question, since I'm not much of a HT guy.
How large is the room, in CUBIC FEET?
Also? How 'hard' is the room, in the sense of being mostly reflective of sound or perhaps very
'soft' in the sense of lots of cloth covered furniture.
Treated rooms should sound better, but also need a little bit more power.
That being said? My instinct is that 65watts is probably enough. Speakers ADD in level, and you are dealing with 'room gain'.....
the sound doesn't just disappear but rather is part of a live room.....
People also tend to overestimate the amount of power they 'need'. The HT guys that put more power to the fronts / center and main surround speakers (like an XPA-5)
seem to have the right idea.
|
|
|
|
Post by 27dnast on Jan 31, 2019 10:47:57 GMT -5
It's about 2000 cu feet, treated. So, not hard
|
|
|
|
Post by leonski on Jan 31, 2019 17:01:04 GMT -5
That's about what?
21' X 12' X 8 ' ceiling.
Nice size, adjusting for ratios.
Let everyone know how this works out.
|
|
