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Post by rbk123 on Mar 27, 2017 8:40:05 GMT -5
If I was on trial, I would ask my lawyer to dismiss uninformed, know it all, and prejudicial jurors from the jury pool. Would you do the same? If you are a know it all, would you please share with me the winning lotto numbers for the next upcoming powerball lottery? Lol. Right, because audio is just like court. Good grief. I have owned and still own multiple receivers, some of higher rated spec than the precious Yamaha you are considering. They are all fine and do their job well. I have owned and still own many amps including Emotiva and other manufacturers. There isn't a receiver out there who's amp section can better any of Emotiva's dedicated amps. That's not even surprising since that isn't really the skillset strength of those who design and build receivers. There's a reason that every reviewer who reviews an entry level multichannel amp suggests to the readers that whatever amp they are reviewing is a good opportunity for a listener to try out the performance of going separates for not too-dissimilar $$. You apparently have yet to grasp that. Since you are fond of analogies, let me provide my own. In my blanket statement the odds are tremendously in my favor that I'm right, based on the pure number of past and present receivers produced and constantly churned out. Is there 1 who's amp section that might out perform the Emo amp? If so, it would be a rare exception. Very rare. Hence my blanket statement. So here's my analogy - you can assume the Emo amp will outperform any receiver until proven otherwise and the odds will be substantially in your favor and because of that your risk is very low; you can also assume most people aren't the brightest of bulbs, until they prove to you otherwise and the odds are substantially in your favor you would be correct. If you prefer to base your choices and options on statistical outliers, just go back to my analogy. Lol. |
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KeithL
Administrator 
Posts: 10,261
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Post by KeithL on Mar 27, 2017 8:57:23 GMT -5
Magneplanars tend to have a relatively flat impedance... even though it's a bit low... which means that they aren't especially hard to drive.
Electrostatic loudspeakers, and especially some Martin Logan models, have an impedance that is almost purely capacitive, and that drops unreasonably low at very high frequencies.
This can in fact make them VERY difficult to drive; however this varies form model to model.
I should also point out that Martin Logan's recent "folded motion" line of speakers are NOT electrostatic speakers....
They use folded ribbon drivers like our Airmotiv speakers and Stealths, and aren't especially difficult to drive at all.
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Post by leonski on Mar 27, 2017 9:24:20 GMT -5
All based on the Heil AMT design / execution.
Even Radio Shack used a similar driver which got good reviews.
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Post by leonski on Mar 27, 2017 11:13:47 GMT -5
Magneplanars tend to have a relatively flat impedance... even though it's a bit low... which means that they aren't especially hard to drive. Electrostatic loudspeakers, and especially some Martin Logan models, have an impedance that is almost purely capacitive, and that drops unreasonably low at very high frequencies. This can in fact make them VERY difficult to drive; however this varies form model to model. I should also point out that Martin Logan's recent "folded motion" line of speakers are NOT electrostatic speakers.... They use folded ribbon drivers like our Airmotiv speakers and Stealths, and aren't especially difficult to drive at all. My original Maggies were perfectly happy with a 60x2 @8 Kenwood Integrated amp. 80x2 @4, IIRC. The KA7100 was the model and I think my nephew STILL has it. When I added a Carver Cube of over 200x2 is when things got more......interesting. Read any 'road test' of nearly ANY 'Stat and you'll see exactly what Keith mentions. Very high reactance and low impedance coupled together for the highest octave spells Trouble (with a capital 'Tee') for the partnering amp is if is NOT stable into such loads. Or simply can't perform. Most reviews 'omit' such measurements since most readers : 1. Don't care 2. Can't properly interpret 3. Aren't buying, anyway 4. Taking such measurments is both exacting AND time consuming. |
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