Pulled the trigger...UPA-7

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96cobra10101

96cobra10101

Senior Audioholic
Called Emotiva and ordered the 7 channel UPA-7, using my Onkyo TX-DS787 as a pre-amp. Also ordered a pair of ERD-1's for the rear. I asked a ton of questions, including replacing my Klipsch's. The tech (Vince I think, sorry, I am horrible with names) said to hold off until I use them with my new amp. I am looking forward to getting the UMC-1 in the near future. I let them know Audioholics was responsible for the initiating the sale, thanks guys!
 
gene

gene

Audioholics Master Chief
Administrator
Good call and you won't be disappointed, especially when you read my review when it goes live tomorrow. Thanks for the plug. It really helps when our readers let the manufacturers know they did their research with us.
 
J

JJMP50

Full Audioholic
I just read on FB, they are now offering the UMC-1/UPA-7 combo for $1298 (1148 for UPA-5). I'm not in the market right now and already have a UPA-5 but that sounds like a pretty good deal. Don't know if all the bugs are out of the UMC-1 yet but I can't think of a receiver that would deliver what that combo would do at that price point.
 
GlocksRock

GlocksRock

Audioholic Spartan
I'm sure you will love it, they make great amps, very solid and tons of power for the money.
 
KEW

KEW

Audioholic Overlord
It is a shame that Emotiva doesn't sell a UPA-3 for $450, but I guess they know how well a three channel unit sells.
 
96cobra10101

96cobra10101

Senior Audioholic
gene said:
Good call and you won't be disappointed, especially when you read my review when it goes live tomorrow. Thanks for the plug. It really helps when our readers let the manufacturers know they did their research with us.
Click to expand...
No problem. Glad I found the forum, its a wealth of information. I saved about $1000 off of what I was going to purchase, got a better amplifier, a set of speakers and still stayed way below what I was going to spend. The guy I spoke to at Emo was great, answered every questoin I had and wasn't pushy at all. I wasn't even sure I was talking to a salesman. I could have went a different route and spent more money, but he steered me away from that in favor of getting me the product that I would be totally satisfied with. The zero pressure approach to sales and not bad mouthing the competition was a plus. He had nothing negative to say about the NR5008 I was thinking of purchasing, but also explained why his product was a better piece for my application. I'll def be purchasing more equipment from these guys. I just wish they had a showroom around here, I would love to hear one of there sound rooms. I'll post some pics when I get her.
 
Mike Ronesia

Mike Ronesia

Junior Audioholic
Like always some of that is over my head but I appreciate the through review. Thanks. ;)
 
AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
After looking over the reviews of the XPA-2 & UPA-7, I'm a little more impressed.

UPA-7:

Unweighed SNR: 95dB, which probably translates to ~ 110-115dBA on HTM, which is above average.:D

Crosstalk -72dB @ 1kHz, which is below average. Most receivers have crosstalk -80dB @ 1kHz or better. An Onkyo $400 receiver probably has crosstalk of -85dB @ 1kHz.:D

However, you probably won't notice any difference at all with the crosstalk. Just something to talk about that's all.:D

XPA-2: crosstalk -140dB @ 1kHz? Damn. That is better than an $30K Mark Levinson and Krell amp!:eek:
 
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gene

gene

Audioholics Master Chief
Administrator
Unweighed SNR: 95dB, which probably translates to ~ 110-115dBA on HTM, which is above average.
Click to expand...
95dB unweighted at 1 watt is NOT above average, its superb. I've measured maybe 2-3 other amps in my lifetime that did this well and those amps were over $5k!

I think you are confusing SNR at max rated power (115dB at 125watts) between amps of different power ratings to think that its full power SNR rating is only above average. Unless all of the amps you are comparing are rated at the same output power, you need to take a 1 watt measurement or scale back their full power measurement to 1 watt to compare apples to apples.
 
AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
gene said:
95dB unweighted at 1 watt is NOT above average, its superb. I've measured maybe 2-3 other amps in my lifetime that did this well and those amps were over $5k!

I think you are confusing SNR at max rated power (115dB at 125watts) between amps of different power ratings to think that its full power SNR rating is only above average. Unless all of the amps you are comparing are rated at the same output power, you need to take a 1 watt measurement or scale back their full power measurement to 1 watt to compare apples to apples.
Click to expand...

HTM on Onkyo 608:
http://hometheatermag.com/receivers/onkyo_tx-sr608_av_receiver/index3.html

Crosstalk at 1 kHz driving 2.83 volts into an 8-ohm load was –87.08 decibels left to right and –87.96 dB right to left.

The signal-to-noise ratio with 2.83 volts driving an 8-ohm load from 10 hertz to 24 kHz with “A” weighting was –105.64 dBrA.

2.83 volts into an 8 ohm load is equal to 1 watt:
Ohm’s Law: Power (watts) = Voltage (V) x Current (I) or Power = V_/R (impedance in Ohms)

http://www.psbspeakers.com/audio-topics/Guide-to-Speaker-Specifications
 
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gene

gene

Audioholics Master Chief
Administrator
The signal-to-noise ratio with 2.83 volts driving an 8-ohm load from 10 hertz to 24 kHz with “A” weighting was –105.64 dBrA.
Click to expand...

Regarding SNR
A-weighting can yield a 10dB or more improvement over un-weighted depending on what amp topology, and what digital circuitry is producing out of band noise. Again you need to compare apples to apples.

That being said, the Onkyo sounds like it has very good noise performance. Receivers generally do since they have optimized preamp/power amp stages to work with each other without any external noise pick up via cabling.

Regarding Crosstalk
As for Crosstalk, I do All-to-One measurements where 6 of the channels are the noise source instead on just one channel like every other magazine does. Again this makes my numbers a lot more worse case. If you look at my review you will see the UPA-7 did 85dB at 1kHz for channel to channel crosstalk which is right in line with the Onkyo you quoted.

I also check full power crosstalk which nobody else does to see if the magnetics are causing any saturation issues that bleed over. The Onkyo crosstalk measurements were done at 1 watt (2.83V, 8 ohms) which doesn't give you the whole picture like my measurements do.
 
Mike Ronesia

Mike Ronesia

Junior Audioholic
gene said:

Regarding SNR
A-weighting can yield a 10dB or more improvement over un-weighted depending on what amp topology, and what digital circuitry is producing out of band noise. Again you need to compare apples to apples.

That being said, the Onkyo sounds like it has very good noise performance. Receivers generally do since they have optimized preamp/power amp stages to work with each other without any external noise pick up via cabling.

Regarding Crosstalk
As for Crosstalk, I do All-to-One measurements where 6 of the channels are the noise source instead on just one channel like every other magazine does. Again this makes my numbers a lot more worse case. If you look at my review you will see the UPA-7 did 85dB at 1kHz for channel to channel crosstalk which is right in line with the Onkyo you quoted.

I also check full power crosstalk which nobody else does to see if the magnetics are causing any saturation issues that bleed over. The Onkyo crosstalk measurements were done at 1 watt (2.83V, 8 ohms) which doesn't give you the whole picture like my measurements do.
Click to expand...
Great explanation and thanks for the consistent through analysis. It really helps with buying decisions.
 
P

PENG

Audioholic Slumlord
I think it is fair to discount the A-weighting number by 10 in order to compare with the unweighted numbers, but 105-10=95 is still a very good number.
 
GlocksRock

GlocksRock

Audioholic Spartan
gene said:

Regarding SNR
A-weighting can yield a 10dB or more improvement over un-weighted depending on what amp topology, and what digital circuitry is producing out of band noise. Again you need to compare apples to apples.

That being said, the Onkyo sounds like it has very good noise performance. Receivers generally do since they have optimized preamp/power amp stages to work with each other without any external noise pick up via cabling.

Regarding Crosstalk
As for Crosstalk, I do All-to-One measurements where 6 of the channels are the noise source instead on just one channel like every other magazine does. Again this makes my numbers a lot more worse case. If you look at my review you will see the UPA-7 did 85dB at 1kHz for channel to channel crosstalk which is right in line with the Onkyo you quoted.

I also check full power crosstalk which nobody else does to see if the magnetics are causing any saturation issues that bleed over. The Onkyo crosstalk measurements were done at 1 watt (2.83V, 8 ohms) which doesn't give you the whole picture like my measurements do.
Click to expand...
It's the knowledge and in depth reviews like this that make this forum so great. Thank you Gene and the rest of the Audioholics staff for all you do.
 
96cobra10101

96cobra10101

Senior Audioholic
Checked the FedEx tracking:

"Sep 17, 2010 4:38 AMOn FedEx vehicle for deliveryTAMPA, FL"

WHOOOOOOOOOOOOOOOOT!!
 
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