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Post by deltadube on May 31, 2016 21:49:36 GMT -5
I was wondering why there isn't a Base-X monoblock amp? Seems we need something to replace the old UPA-1 and XPA-100. the amp page seem empty of selections these days at emo.. man I use to look at the amp pages for hours lol.. xpr 1s xpa 1s xpa 1ls.. xpa 2 xpa 3 xpr 2 etc .. well I hope the new basx line is going to do well for emo!!! looking forward to some reviews soon.... well would love to see a return of the xpr 1s...  I didn't get a pair... |
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Post by gjr on May 31, 2016 23:11:35 GMT -5
Any update on the IA 100 tuner/amp ordering and shipping? I was ready to order another product, but will wait if time frame is similar to the rest of the BasX .
What type of amplifier is it using?
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Post by crussader on Jun 1, 2016 11:49:24 GMT -5
From the A-700 Specs Page: Power Output (two channels driven) 110 watts RMS per channel; 20 Hz - 20 kHz; THD < 0.1%; into 8 Ohms 210 watts RMS per channel; 1 kHz; THD < 1%; into 4 Ohms Power Output (all channels driven) 80 watts RMS per channel; 20 Hz - 20 kHz; THD < 0.1%; into 8 Ohms What about all channels driven into 4 Ohms? |
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Post by AudioHTIT on Jun 1, 2016 12:09:42 GMT -5
From the A-700 Specs Page: Power Output (two channels driven) 110 watts RMS per channel; 20 Hz - 20 kHz; THD < 0.1%; into 8 Ohms 210 watts RMS per channel; 1 kHz; THD < 1%; into 4 Ohms Power Output (all channels driven) 80 watts RMS per channel; 20 Hz - 20 kHz; THD < 0.1%; into 8 Ohms What about all channels driven into 4 Ohms? These are the specs as they're posted, I don't know any more than anyone else. Maybe they'll release more info with the test results, but I doubt you'd get the kind of bump you see with two channels driven. 8 ohms is the standard and what I look at, but 4 ohms does tell you something about the power supply. emotiva.com/products/amplifiers/basx-700 |
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Post by repeetavx on Jun 1, 2016 20:12:08 GMT -5
I'm working to get the AP data together to post on the site. The AP data will tell you the 4 ohm spec. |
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Post by davidvanderbilt on Jun 8, 2016 8:54:05 GMT -5
Is there going to be a basx 150?
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Post by AudioHTIT on Jun 8, 2016 11:46:45 GMT -5
Is there going to be a basx 150? Seems the A-100 will be as close as it gets, not quite a 2 dB difference. |
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Post by davidvanderbilt on Jun 8, 2016 13:57:22 GMT -5
Dang it! All the websites I've read said there was going to be a Basx A-150 as well.
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Post by crussader on Jun 22, 2016 14:35:27 GMT -5
How is that AP data coming?
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Post by AudioHTIT on Jun 22, 2016 21:50:55 GMT -5
Dang it! All the websites I've read said there was going to be a Basx A-150 as well. Hmmm, you're right, maybe it's in the works. |
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Post by Gary Cook on Jun 22, 2016 22:55:06 GMT -5
What type of amplifier is it using? For my simple brain; BasX = Class AB XPA Gen 3 = Class H Emersa = Class D Cheers Gary |
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Post by leonski on Jun 23, 2016 22:26:05 GMT -5
Class 'H' refers to power supply NOT output of the amp.
A few adjustments might need to be made to make an A/B amp handle multiple voltage rails, but the OUTPUT will remain A/B.
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Post by AudioHTIT on Jun 24, 2016 12:33:16 GMT -5
Class 'H' refers to power supply NOT output of the amp. A few adjustments might need to be made to make an A/B amp handle multiple voltage rails, but the OUTPUT will remain A/B. The point Gary Cook was trying to make is that Class H is one of the distinguishing qualities of the XPA Gen 3 when comparing 'Classes' between the lines. |
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Post by Gary Cook on Jun 24, 2016 16:00:19 GMT -5
Class 'H' refers to power supply NOT output of the amp. A few adjustments might need to be made to make an A/B amp handle multiple voltage rails, but the OUTPUT will remain A/B. The point Gary Cook was trying to make is that Class H is one of the distinguishing qualities of the XPA Gen 3 when comparing 'Classes' between the lines. Spot on, it used to be simple, Emotiva amps were Class AB with linear power supplies, now there are alternatives. So rather than write lines and lines of technical descriptions (which has been done plenty of times) that are hard for simple guys like me to remember, use as few words as possible to distinguish between the ranges. Not describe each one in minute detail, just a quick reference. Cheers Gary |
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Post by leonski on Jun 24, 2016 16:50:25 GMT -5
I don't know what the point of 'Class H' is supposed to be. More efficient? Additional complexity to MAYBE save a couple bucks in Electricity over the life of the amp? We will probably never know, unless we get access to the schematics, but I suspect the G3 stuff with 'H-Power' is not a clean sheet design.
And run within distortion limits, i doubt we could tell ANY of 'em apart by ear. The proviso would be we COULD tell them apart at the limits or driving out-of-your-mind, wacky speaker loads.
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Post by bolle on Jun 24, 2016 17:02:50 GMT -5
More power and/or more efficient... Class H allows for a higher rail voltage when needed (simplified Explanation). An amp as powerful as a XPR for example is more difficult to build with Class AB. Class G and H help here.
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Post by Gary Cook on Jun 24, 2016 17:10:32 GMT -5
Switching power supplies are noticeably lighter, don't need a big heavy toroidal transformer for example. This a relevant if you are supplying internationally, saves on freight, and/or if the end user needs to move their gear around. Rather than stick it on the shelf and leave it there for years. Also because of their ability to switch multiple output voltages they are slightly more efficient. Lower output voltage when less wattage (volume) is required, higher output voltage when more grunt is needed. Whereas a linear power supply basically puts it all out there, all the time. Plus a big transformer and a big bunch of capacitors are less efficient, less output for the same input.
Cheers
Gary
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Post by bolle on Jun 24, 2016 17:15:08 GMT -5
You can do a Class G and H with a switching as well as a conventional PS - careful not to mix Things. The XPR also was Class H (or G - don´t remember exactly but imho not THAT big a difference - may be wrong there...)
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Post by leonski on Jun 24, 2016 23:39:17 GMT -5
SMPS can have enough higher efficiency to make a slight difference in your electric bill and your AC bill in summer.
However, the CORRECT way to measure amp 'efficiency' is basically from plug to speaker. At 100% output, you MAY pick up 4 or 5 percent of efficiency, but during normal use, probably not that much.
I'd be curious as to idle power for the various amps. These amps will probably do better in Europe, where efficiency rules are much stricter than in the US. Making an amp good for all voltages might be easier, too.
We'll see how well the multi-rail SMPS gear does.
I'll disagree with Bolle about complexity. Adding parts adds points of failure. Admittedly, some parts have failure rates in the Microscopic range. The output of the amp will ONLY ask for what it needs from the PS. Maximum power into a resistor is simply how much Voltage and Current the PS can supply - long term. Peak power is a function of output devices and capacitance / voltage. Conventional power supplies are VERY stable and have FEW failures. PS cap lifetime should be at least 2 decades and maybe 3.
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Post by bolle on Jun 25, 2016 3:40:48 GMT -5
I didn´t say anything about complexity? I said "dificult" which for me is a difference. |
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I didn't get a pair... 
