zzkazu
Seeker Of Truth
Posts: 7 
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Post by zzkazu on Nov 17, 2017 15:08:23 GMT -5
Looking to complete my 7.1.4 system and from the information that Emotiva provided at CES I think the A-5125 provides the best bang for buck for me.
Is there a availability date for this product around?
thanks
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zzkazu
Seeker Of Truth
Posts: 7
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Post by zzkazu on Nov 20, 2017 15:28:06 GMT -5
No update from Emotiva?
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Post by pknaz on Nov 20, 2017 15:42:59 GMT -5
Website says "Ships 11/30"
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zzkazu
Seeker Of Truth
Posts: 7
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Post by zzkazu on Nov 20, 2017 21:15:43 GMT -5
Sorry I cant see the A-5125 there are you talking about the A-5175?
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Post by geebo on Nov 20, 2017 21:34:16 GMT -5
What about the A-500?
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zzkazu
Seeker Of Truth
Posts: 7
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Post by zzkazu on Nov 21, 2017 1:29:51 GMT -5
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Post by geebo on Nov 21, 2017 7:57:55 GMT -5
The 5175 is the one that delivers 5 x 125 or 2 x 175. So why would they come out with a 5125 that also did 125 x 5? I think Dan may have mistakenly referred to that model in the video as a 5125 because it was 5 x 125 or they later decided to change the model number. Check out the guts of the 5175 compared to the one in the video.  |
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zzkazu
Seeker Of Truth
Posts: 7
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Post by zzkazu on Nov 21, 2017 14:57:20 GMT -5
Ok that model had me scratching my head also. Model (5125 printed on case) and price is different from CES video.
But yes I think you are correct, in that its a last minute change.
Would be good if it was confirmed here though.
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Post by creimes on Nov 21, 2017 20:09:02 GMT -5
A pair of 90db efficient speakers 10 feet from a listener with a 110 watt amp will yield 103.7 db spl at listening position, and a 175 watt amp will yield 105.8 This info is running the A-500 and A-5175 into 2 channels at 8 ohms using This CalculatorI myself don't think it's worth another $300 for 2.1 db at listening position. Chad |
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Post by pknaz on Nov 21, 2017 23:33:07 GMT -5
You do realize this is less than 2db of difference?  |
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Post by leonski on Nov 21, 2017 23:52:19 GMT -5
A pair of 90db efficient speakers 10 feet from a listener with a 110 watt amp will yield 103.7 db spl at listening position, and a 175 watt amp will yield 105.8 This info is running the A-500 and A-5175 into 2 channels at 8 ohms using This CalculatorI myself don't think it's worth another $300 for 2.1 db at listening position. Chad Neat Calculator: Please ADD it to the calculator DIY over in the DIY section. Results should be take with a 'grain of salt' when applied to Line Source and Dipole/Bipole speakers. Magnepan 'ticks' both boxes. One problem? HEADROOM. If the number the calculator spits out is 'max' than you have 0db headroom. Not that you'd need it @100+db SPL at your sitting position. A better use might be to vary amp power until you see about 85db as the result. Than use another calculator to determine HEADROOM using max power of amp and the power needed for 85db. 10db headroom is minimal, while 20db headroom would be what it takes for 'realistic' movie presentations. And 85db continuous will probably not damage speakers, either. or your Hearing! 10db is 10x the 85db power while 20db is 20x the 85db power. |
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Post by creimes on Nov 22, 2017 1:38:04 GMT -5
A pair of 90db efficient speakers 10 feet from a listener with a 110 watt amp will yield 103.7 db spl at listening position, and a 175 watt amp will yield 105.8 This info is running the A-500 and A-5175 into 2 channels at 8 ohms using This CalculatorI myself don't think it's worth another $300 for 2.1 db at listening position. Chad Neat Calculator: Please ADD it to the calculator DIY over in the DIY section. Results should be take with a 'grain of salt' when applied to Line Source and Dipole/Bipole speakers. Magnepan 'ticks' both boxes. One problem? HEADROOM. If the number the calculator spits out is 'max' than you have 0db headroom. Not that you'd need it @100+db SPL at your sitting position. A better use might be to vary amp power until you see about 85db as the result. Than use another calculator to determine HEADROOM using max power of amp and the power needed for 85db. 10db headroom is minimal, while 20db headroom would be what it takes for 'realistic' movie presentations. And 85db continuous will probably not damage speakers, either. or your Hearing! 10db is 10x the 85db power while 20db is 20x the 85db power. Yes I was just using it for an example, not actual down to the science results, more of a example of the little difference in power between the two amps for real world use, going between amplifier lines like BasX to XPA it's not just about the power specs but more about the build, you can have an amp with 10,000 watts of power but if it's built like sh** it will sound like sh** haha I've owned a UPA-500 and too many people underestimate that amp, just because it doesn't have a 30lb transformer and 50lbs of heat sinks it is a very nice sounding and capable amplifier, also considering it sold for $399 Chad |
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zzkazu
Seeker Of Truth
Posts: 7
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Post by zzkazu on Nov 22, 2017 2:10:39 GMT -5
Great information.
My speakers are 95 dB SPL Sensitivity, using the calculator it outlines 1 Watt Amplifier Power provides 91.3 dB SPL at listening position.
Using the 85dB and 20dB headroom recommendation I only need a 25 Watt Amplifier.
Obviously makes sense noting efficiency of speakers.
Makes we wonder although about how this maps to real life experiences though...........
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zzkazu
Seeker Of Truth
Posts: 7
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Post by zzkazu on Nov 22, 2017 4:03:15 GMT -5
Decided to go with the A-300 for LR as my Yammy 3070 can power the rest.
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Post by leonski on Nov 22, 2017 13:01:33 GMT -5
Great information. My speakers are 95 dB SPL Sensitivity, using the calculator it outlines 1 Watt Amplifier Power provides 91.3 dB SPL at listening position. Using the 85dB and 20dB headroom recommendation I only need a 25 Watt Amplifier. Obviously makes sense noting efficiency of speakers. Makes we wonder although about how this maps to real life experiences though........... Really tough to beat headroom in an amp, even with 95db sensitive speakers. This is true as long as the FIRST WATT is premium. That's the Most Important 'watt' you'll ever buy. |
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Post by garbulky on Nov 22, 2017 16:19:29 GMT -5
Great information. My speakers are 95 dB SPL Sensitivity, using the calculator it outlines 1 Watt Amplifier Power provides 91.3 dB SPL at listening position. Using the 85dB and 20dB headroom recommendation I only need a 25 Watt Amplifier. Obviously makes sense noting efficiency of speakers. Makes we wonder although about how this maps to real life experiences though........... Real life experience? The best amps I've ever heard have been in no particular order 5 watt Heathkit on Tekton pendragon Emotiva XPA-1 gen 2 1000 watt @ 4 ohm monoblocks on Axiom m80's So....it's a bit of a toss up! Imo it's not about the loudness, it's about the quality it puts out at low power. When I measured how much power was being consumed using a Macintosh amp with meters it was less than a watt = about half a watt. And at peaks on very loud volumes it may have got to 15 watts. |
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Post by leonski on Nov 23, 2017 0:12:55 GMT -5
Uh? First Watt?
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