LCSeminole
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Res firma mitescere nescit.
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Post by LCSeminole on Sept 25, 2015 18:58:52 GMT -5
That will be interesting to see,for sure. Mark I'm thinking the same thing. This is the first I've heard of a pre/pro "syncing" with any power amplifier.
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Post by slovell on Sept 26, 2015 0:41:40 GMT -5
It's on AVS Forums; Receivers, Amps, & Processors; Emotiva XPA-7 User Experiences; page 3, post #87
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Post by boomzilla on Sept 26, 2015 5:33:11 GMT -5
When the moon is in the seventh house and Jupiter lies with Mars, then (and only then) will your Marantz preamp work with your Emotiva power amp! (ROTFLMAO)
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klinemj
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Post by klinemj on Sept 26, 2015 6:10:05 GMT -5
It's on AVS Forums; Receivers, Amps, & Processors; Emotiva XPA-7 User Experiences; page 3, post #87 Took me a while to find it, but for some reason, his xpa-7 went into "safe mode" when he plugged it in, so he ordered another and had the same issue. The Emotiva amps do have fault protection built in, so if there is something electrically not right - they will go safe vs. fry. I have never heard of Emotiva saying that specific pre/pro's trigger the safe mode like the poster claims Damon at Emotiva told him. If that is true, I would say there is something fundamentally wrong with the pre/pro...not with the amp. The amp is doing its job perfectly. The fact that Damon offered a nice alternative that the poster didn't take shows the excellent service from Emotiva, also. But...the only real way you will figure out is to try an amp. Given it sounds like a rare issue, you should be fine. Call Emotiva and talk with them about it if you are concerned. I called with questions on everything I bought before purchasing. They were quite helpful. Also, there may be people here who have used your specific Marantz pre/pro with an XPA-7...maybe modify this thread's title to "Adcom vs. Emotiva xpa-7 with Marantz" and see if you draw those folks out. Mark
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Post by monkumonku on Sept 26, 2015 10:15:30 GMT -5
When the moon is in the seventh house and Jupiter lies with Mars, then (and only then) will your Marantz preamp work with your Emotiva power amp! (ROTFLMAO) I think you mean "..and Jupiter ALIGNS with Mars," not "lies with Mars." You don't want the planets getting TOO friendly with each other, now do you?
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Post by boomzilla on Sept 26, 2015 12:39:55 GMT -5
When the moon is in the seventh house and Jupiter lies with Mars, then (and only then) will your Marantz preamp work with your Emotiva power amp! (ROTFLMAO) I think you mean "..and Jupiter ALIGNS with Mars," not "lies with Mars." You don't want the planets getting TOO friendly with each other, now do you? Well, there IS Venus... Maybe Marantz is from Venus, Emotiva is from Mars? (Still LOL)
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Post by thomasd92 on Sept 26, 2015 15:21:28 GMT -5
I have a XPA7 paired with my Marantz 7702 processor with a Wyred4Sound pre-amp between them for two channel sound and never has the XPA7 going into protection mode.. .When I turn on the 7702 the Wyred4Sound turns on in HT bypass mode and it turns on the XPA-7. When I turn on just the Wyred4Sound to play 2 channel music the XPA7 turns on every time with no problems.
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Post by slovell on Sept 26, 2015 18:06:32 GMT -5
When the moon is in the seventh house and Jupiter lies with Mars, then (and only then) will your Marantz preamp work with your Emotiva power amp! (ROTFLMAO) I think you mean "..and Jupiter ALIGNS with Mars," not "lies with Mars." You don't want the planets getting TOO friendly with each other, now do you? It all seemed a bit bizarre to me too. He must have had a bad jack or interconnect somewhere. As far as the power in two channel "mode" wouldn't the XPA-7 have to be phisically bridged to produce 500 + watts RMS per channel? I've never heard of a multi-channel amp that could sense two channels being used and automatically bridge itself.
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klinemj
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Post by klinemj on Sept 26, 2015 20:46:33 GMT -5
I have never heard of that either...where did you hear the xpa-7 does that?
Mark
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Post by slovell on Sept 26, 2015 22:14:58 GMT -5
I have never heard of that either...where did you hear the xpa-7 does that? Mark I read it on a thread somewhere, might have been Audioholics. I was googling the XPA-2, XPA-5, and the XPA-7 at work (night shift) the other night and ran across it. Guy kept talking about his XPA-7 making 520 watts when it was in two channel "mode". It made me curious as I've always heard two channel with a multi channel described as being "bridged" into two channels, never "mode". I'm not familiar with Emotiva amps so I figured it was strange but maybe so. I'll see if I can find the thread again. I'd never read about amps and prepros bieng incompatible and not "syncing up but there it was.
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klinemj
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Post by klinemj on Sept 26, 2015 22:21:56 GMT -5
Amps don't have "modes"... They are just dumb devices that take what you send them and amplify it. Some can be set up to run in a bridged way to dump 2 amp module outputs into 1, but that is a matter of wiring, not a selectable/switchable "mode". Well, at least on amps I have seen.
If you wonder if the xpa-7 is different, just call Emotiva or download the manual and read it.
Mark
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Post by thomasd92 on Sept 27, 2015 12:28:45 GMT -5
The power rating of 520 watts in two channel mode is in the specs on Emotiva web site for the XPA-7. That is one reason I bought the XPA-7. I listen to a lot of two channel music and my Salk HT3's like power and the XPA7 does the job. I can feel the music in my chair if I choose to listen that loud and it is clear and distortion free.
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Post by rtg97229 on Sept 28, 2015 23:55:05 GMT -5
Well this is the Emo forum so I would expect people to tell you to buy the Emo product. The amps are a good value though. The very high sensitivity of your speakers calls for an amp with a low noise floor and good SNR. I think the XPA-2 would be a good match.
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Post by dally on Sept 29, 2015 8:19:35 GMT -5
I think you mean "..and Jupiter ALIGNS with Mars," not "lies with Mars." You don't want the planets getting TOO friendly with each other, now do you? It all seemed a bit bizarre to me too. He must have had a bad jack or interconnect somewhere. As far as the power in two channel "mode" wouldn't the XPA-7 have to be phisically bridged to produce 500 + watts RMS per channel? I've never heard of a multi-channel amp that could sense two channels being used and automatically bridge itself. The XPA-7 has no "two channel mode" and it cannot "bridge itself". Emotiva's multi channel amps use a SHARED power supply. This means every channel is connected to one central power supply, as uposed to some other multi channel amps that use a seperate power supply for each channel. With a shared power supply the whole transformer and storage capacitance is available to however many channels you are using. If you're only using two channels,the entire power supply for the 7 channel amp is available for those two channels. For example: my pa-7-350 is 7 x 350 Watts,but is rated at almost 800 Watts into two channels.
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Geronimo
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Post by Geronimo on Sept 29, 2015 9:44:46 GMT -5
It all seemed a bit bizarre to me too. He must have had a bad jack or interconnect somewhere. As far as the power in two channel "mode" wouldn't the XPA-7 have to be phisically bridged to produce 500 + watts RMS per channel? I've never heard of a multi-channel amp that could sense two channels being used and automatically bridge itself. The XPA-7 has no "two channel mode" and it cannot "bridge itself". Emotiva's multi channel amps use a SHARED power supply. This means every channel is connected to one central power supply, as uposed to some other multi channel amps that use a seperate power supply for each channel. With a shared power supply the whole transformer and storage capacitance is available to however many channels you are using. If you're only using two channels,the entire power supply for the 7 channel amp is available for those two channels. For example: my pa-7-350 is 7 x 350 Watts,but is rated at almost 800 Watts into two channels. thank you sir for a detailed explanation on the XPA7. this makes me lean more on the XPA7 for my next purchase than the XPA2. I recently have the XPA5 and was looking for another emotiva amp to complete my setup. plus, the xpa7 together with my XPA5 will be future proof for an atmos capable receiver.
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Post by garbulky on Sept 29, 2015 9:58:37 GMT -5
I think you mean "..and Jupiter ALIGNS with Mars," not "lies with Mars." You don't want the planets getting TOO friendly with each other, now do you? Well, there IS Venus... Maybe Marantz is from Venus, Emotiva is from Mars? (Still LOL) This is not good because we now have salt water on mars. And as you know salt water wrecks havock on electronics. I sure hope that's not where the facility is! Edit: Oh well I guess it's confirmed. Emotiva Mars headquarters Emotiva solar powered monoblock amplifier in orbit around Mars.
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Post by slovell on Sept 29, 2015 23:39:27 GMT -5
The XPA-7 has no "two channel mode" and it cannot "bridge itself". Emotiva's multi channel amps use a SHARED power supply. This means every channel is connected to one central power supply, as uposed to some other multi channel amps that use a seperate power supply for each channel. With a shared power supply the whole transformer and storage capacitance is available to however many channels you are using. If you're only using two channels,the entire power supply for the 7 channel amp is available for those two channels. For example: my pa-7-350 is 7 x 350 Watts,but is rated at almost 800 Watts into two channels. thank you sir for a detailed explanation on the XPA7. this makes me lean more on the XPA7 for my next purchase than the XPA2. I recently have the XPA5 and was looking for another emotiva amp to complete my setup. plus, the xpa7 together with my XPA5 will be future proof for an atmos capable receiver. Now it makes sense, thank you. If I'm understanding this correctly, the XPA-7 in stereo is a beast? So even though all seven channels are hooked up to the prepro if I'm only using two of them for stereo it directs all of it's power to those two channels that are actually being used at the time?
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Post by slovell on Sept 29, 2015 23:47:38 GMT -5
It all seemed a bit bizarre to me too. He must have had a bad jack or interconnect somewhere. As far as the power in two channel "mode" wouldn't the XPA-7 have to be phisically bridged to produce 500 + watts RMS per channel? I've never heard of a multi-channel amp that could sense two channels being used and automatically bridge itself. The XPA-7 has no "two channel mode" and it cannot "bridge itself". Emotiva's multi channel amps use a SHARED power supply. This means every channel is connected to one central power supply, as uposed to some other multi channel amps that use a seperate power supply for each channel. With a shared power supply the whole transformer and storage capacitance is available to however many channels you are using. If you're only using two channels,the entire power supply for the 7 channel amp is available for those two channels. For example: my pa-7-350 is 7 x 350 Watts,but is rated at almost 800 Watts into two channels. My system does double duty for stereo and home theater and from what I've been reading here I think the XPA-7 would satisfy all my needs quite nicely.
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klinemj
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Post by klinemj on Sept 30, 2015 5:20:41 GMT -5
I think it would.
Mark
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Post by sahmen on Sept 30, 2015 6:20:38 GMT -5
Emotiva solar powered monoblock amplifier in orbit around Mars. Let's hear it for the Emo solar powered monoblocks in orbit!!!. I hope their owners are covered for membership in Nick's the secret society .
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