Yamaha RX-V1065

[3db]

According to Home Theater Magazine power tests, the 1065 is definately showing where the weight reduction took place.

http://hometheatermag.com/receivers/yamaha_rx-v1065_av_receiver/index4.html


This is dismal power performance for a receiver in the $1000 price category. When it comes down to it, I'd rather have the reciever perform stongly with a good power supply and amp section then having a nice high rez OSD that I use seldomly. I think Yamaha has gotten their priorties turned around.

 

[Knucklehead90]

Thats not good - but take a look at the Onkyo NR807. Makes you wonder if something is wrong with the bench testing equipment.

 

[mike c]

i'm glad my receiver tests fine, though i'm only using the surround channels on mine

http://www.hometheatermag.com/receivers/708denon3808/index2.html

 

[3db]

Thats not good - but take a look at the Onkyo NR807. Makes you wonder if something is wrong with the bench testing equipment.

Nothing wrong with that. Its very similar to the Yamaha RX-V1800 and its got a nice gutsy power supply and amp section.

The thing that makes the 1065 so poor in my eyes is teh two channel test when going from 8 ohms into 4 ohms. Theoretcially (ideally) the power output should double into 4 ohms but fro practical limiations, it can't. Both the RX-V1800 andd the Onkyo 807 get more than half way their in doubling their power output. But the 1065 only musters up andddtional 20+ watts, hardly what I call doubling.

Yamaha will lose out to Denon if it doesn't shape up its act. Until Yamaha fixes this power delivery, I'll be telling people to go with Denon.

 

[son-yah-tive]

YAMAHA....Say it ain't so. Do it to the 300.00 recievers, not the 1,000 ones! What's next the 1,500 up models? Get back to the BASICs, PLEASE! I've always loved Yamaha equipment. Don't make me 'JUMP SHIP'.

 

[anamorphic96]

Actually I have noticed even the 863 had similar power output compared to the 1065. The 861 is pretty much the same as well. The 2 channel performance is solid though.

I'm wondering the if the weight differences really affected the power output or not.

 

[JJMP50]

On the other hand, they make very inexpensive Pre/pros when teaming up with an Emotiva or Outlaw. Maybe not the 1065, but the lower ones 6 series and up.

 

[PENG]

Guys, I have read almost every single AVR lab measurements published by HTmag and S&V (I subscribe to both) done in the last couple of years and noticed inconsistencies. For now I would suggest that using those measurements to compare the test specimens only make sense if they are tested by the same person using the same setup. That means the group tests may be fine but individual tests may be not (just not sure).

I do find the British Home Cinema Choice mag bench test results more consistent to what one would expect from historic figures. For example, there should not be much difference in the power rating of a RX-V657, 659, 661, 663, 861,863 yet HTmag/S&V showed the last 4 much weaker in mch. It is just not believable. That being said, I admit it is kind of weird the Denon AVR4310 did manage to yield numbers consistent to their predecessor, the 3808. Weird in that it would seem to contracdict what I commented earlier. I would like to see more tests on the lower Denon models before jumping to any conclusions.

 

[PENG]

Nothing wrong with that. Its very similar to the Yamaha RX-V1800 and its got a nice gutsy power supply and amp section.

I think he meant the difference between the 5 channel and 7 channel test results.

HT Labs Measures
Five channels driven continuously into 8-ohm loads:
0.1% distortion at 105.5 watts
1% distortion at 122.0 watts

Seven channels driven continuously into 8-ohm loads:
0.1% distortion at 29.9 watts
1% distortion at 33.0 watts

5X105.5=527.5
7X29.9=209.93??

That's a significant difference between the 5,7 channel numbers. Right or wrong I suspect there is some sort of protective cct in the work that is not acting according to conventional wisdom.

 

[PENG]

i'm glad my receiver tests fine, though i'm only using the surround channels on mine

http://www.hometheatermag.com/receivers/708denon3808/index2.html

Hello Mike, the 3808 should be fine for surround chennels in most HT applications. I have the 4308 that I assume has the same amp section as the 3808. I have compared using its internal amp and an external power amp to the nth degree while listening at SPL that I could barely tolerate and found absolutely no audible difference. My speakers are of the 3 way tower type that do dip to 4 ohms with 88 dB sensitivity.

 

[anamorphic96]

I think he meant the difference between the 5 channel and 7 channel test results.

HT Labs Measures
Five channels driven continuously into 8-ohm loads:
0.1% distortion at 105.5 watts
1% distortion at 122.0 watts

Seven channels driven continuously into 8-ohm loads:
0.1% distortion at 29.9 watts
1% distortion at 33.0 watts

5X105.5=527.5
7X29.9=209.93??

That's a significant difference between the 5,7 channel numbers. Right or wrong I suspect there is some sort of protective cct in the work that is not acting according to conventional wisdom.

HCC also noticed something similar when they tested the Onkyo 607 and I noticed Home Theaters tests where a little off compared to the 606 and 605 when it came to 2 channel output. They could not test 5 channels due to no 5 channel analog inputs on the 607. The interesting thing is the amp sections look identical in these 3 models. Sounds like some sort of new protection circuitry is in place with the newer models.