Onkyo's TX-SR80X series intends to stay out of the heavyweight division

[Seth=L]

Last year's disappointment with the TX-SR80X series dropping out of the heavyweight division will be followed through yet again this year. The TX-SR807 weighs but a couple more pounds than last years TX-SR806 (probably from eating twinkies). It doesn't seem likely that Onkyo's TX-SR80X series will ever be able to stack up to the Onkyo TX-SR805, the biggest baddest cheap heavyweight AVR I've ever seen.

One commentator stated: "it's just gut wrenching, truth be told, we don't expect to seem the TX-SR80X series back in the arena anytime soon"

and another discerning spectator stated: "what a bunch of pansies!"

 

[Lordoftherings]

I agree with you Seth=L, I read everything there is to read about the newer
Onkyo TX-NR807 ('N' stands for Network Receiver), and it appears to be similar to the 806, but adding the Network feature, plus some minor one, and not so minors (more HDMI inputs).
The Dac is an 8-channel (multichannel single chip Dac, the TI Burr-Brown PCM-1690), which is inferior to the excellent TI BB PCM-1796a Dac (5 of them, with 4 active, with the 5th one, unknown use).
The weight is almost the same as the 806 (37.5 lbs), at 39.7 lbs, or about 2.2 pounds more. And again, it only has Audyssey MultEQ (and not MultEQ XT).
It does sports Audyssey Dynamic EQ, and Audyssey Dynamic Volume.
And it is still THX Ultra2 Plus certified, same as the 806.

I like the design better though. It looks great, better than the 805, for sure.
And it also sports 7 HDMI inputs. That's an amazing number (the 805 sports only 3).

Anyway... we shall see.

Note: The one to get is the replacement from the 876, the Onkyo TX-NR1007.
Should be available this fall, if everything works as scheduled.

 

[MatthewB.]

Despite the many issues I've had with my Onkyo 805, I still love it and will never give it up. Esepcially after I saw how they molested (more like gang raped) the 806 and now the 807. It is a mere shadow of the great reciever that the 805 is.

 

[Lordoftherings]

Me, I'm very curious to see the Onkyo TX-NR3007 (the 906 replacement),
And also the Denon AVR-4810ci.

These are my type of possible future machines.

Bob

 

[Seth=L]

I think they've decided not to use the NR nomenclature, much like they have no used it with the TX-SR876/875 which both sport network capability. Also, from what I've read on Onkyo.uk the TX-SR807 will not have THX Ultra II certification anymore, it will instead have THX Select II. I suppose it's possible they have different plans for the model being shipped in the Americas, but I can't imagine why.

 

[MatthewB.]

It dropped in certification because of the whimpy amp they put in.

 

[Lordoftherings]

But the North American model still sports the THX Ultra2 Plus certification.
Also, the UK model should be THX Ultra2 as well; it is, I believe a transcript mistake, a printing error.

* Of course, the TX-NR807 has Dolby Digital Pro Logic IIz.

It has an amazing 7 HDMI inputs, but it let go of the 7.1 mutichannel analog input!

==> Shipping is normally scheduled for mid-August, but Amazon has it on it's site at $999, and available July 31.

*** Also, I'm not positively certain, but the 876 replacement, the TX-NR1007, might be called the TCH-SR1007 for the UK model?

 

[Lordoftherings]

Do you think that the Onkyo TX-NR807 will explode & burst to flames?

I know a lot of people concerns about Onkyo receivers, as running hot and be scared away by this.

I personally own the Onkyo TX-SR805 and the TX-SR876, but let me assure you of this fact: * They do run hot, but not in a negative way. It is their video processors that run hot, and not the amplifier section itself. *
-> And that, again, is a FACT. Also, this issue is a lot diminished with their recent models, in particular their 07 series.
And it is not a serious issue at all, if you take the right precautions, which is to leave some space for allowing the air to flow freely, in particular on top and rear of the unit. But this, is the same with any Power Amplifiers, Iintegrated amplifiers, Stereo Receivers, or A/V Multichannel Receivers.
It is always well indicated in their instruction manuals, at the very beginning.
* But for people that must enclose (not recommended) their receivers inside their cabinet, without proper air circulation, here's a quick, cheap, easy, simple & efficient solution:

@ http://www.coolerguys.com/comcool.html

Now, I thought of adding a link here, that you might be interested to read.
But, take it for what it is, no more no less.

* Has Your Onkyo 605/705/805/875/905 Blown Smoke, Popped Sparks, Caught Fire? *

@ http://www.avsforum.com/avs-vb/showthread.php?t=916212

Nice day everyone,
Bob

 

[Seth=L]

I'm going to dissagree with your statement regarding where the heat comes from on the Onkyos. I've been face to face with the 805 and Integra equivelent. The TX-SR805 uses the very efficient Faroudja DCDi chipset, which doesn't produce much heat at all. I distinctly remember the heatsink in the mid-section of the receiver and transformer in the front producing copious amounts of heat even at idle.

The TX-SR876's Reon does indeed run hot, but it's likely a majority of the heat still comes from the front half the receiver, the video processor is in the rear right corner of the TX-SR876 near the top of the case.

I wonder if there's a way to access the threshold temp setting to turn those fans on in the front left and right of the big Onkyos. I know there's a way to pull up the temp gauges for the sensors.

 

[Lordoftherings]

Good morning Seth,

Yep, some heat is also coming from the heat sinks, which is quite normal. I'd say.

Besides, the fans never turn on, which means that the 805 can handle the pressure. Again, another good sign, and not much to be concern about.

Well, I guess so. You probably can replace the sensors by some more sensitive ones, that will turn the two fans much sooner. Just get the appropriate sensors (2 of them), with the appropriate temperature threshold.

But I'm not worried about this, as I know well my 805, and feel very comfortable with it, as is.

Hey Seth=L, did you knew that the 805 has two pairs of complementary devices (Toshiba triple-diffused devices); output transistors per channel (2sa1962 and 2sc5242)?
That's pretty good for a receiver.

Oh, and you have the outmost right to disagree with me.
BUT, the hottest place from my 805, and also from my 876, is the top rear right corner (when viewed from the front of the units).
Furthermore, the video processor chip on both these receivers, produce a fair amount of heat.
I'm not making that up, it's just the way it is. And, about 100,000 people can confirm that! Must have something to do with mass agreement.

You have a great day Seth,
Bob

 

[MatthewB.]

Seth, I agree with LOTR, my 805 is extremely hot in the rt rear side, once I put a cooling fan there, it reduced the heat from the entire reciever, it is now barely past luke warm. Heat is due to stacked video chips.

 

[Lordoftherings]

Good morning Matthew,

And Thanks for the reconfirmation.

Bob

 

[rnatalli]

It's a shame Onkyo is following suit and skimping their amp sections little by little. I guess we can only hope HK and Marantz stick to their guns and keep putting good amp sections into their receivers.

 

[lsiberian]

It's a shame Onkyo is following suit and skimping their amp sections little by little. I guess we can only hope HK and Marantz stick to their guns and keep putting good amp sections into their receivers.

I certainly do. And I hope they keep selling their receivers with great deals on refurbs.

To Seth, I feel your pain man. I loved Onkyo, but this is getting ridiculous. I'll be sticking to HK. You might take a look at the 300 series. They are very robust and spec very well.

 

[Lordoftherings]

Morning Isiberian,

The Harman Kardon 300 series, is that includes the HK AVR 3550HD?

And can you tell us more about it please?

Bob

 

[jostenmeat]

I know a lot of people concerns about Onkyo receivers, as running hot and be scared away by this.

I personally own the Onkyo TX-SR805 and the TX-SR876, but let me assure you of this fact: * They do run hot, but not in a negative way. It is their video processors that run hot, and not the amplifier section itself. *
-> And that, again, is a FACT. Also, this issue is a lot diminished with their recent models, in particular their 07 series.

I agree with Seth. A fact has to be true in order to be fact, so I'm sorry to tell you it is not fact, but a falsehood. I've actually been pretty annoyed by people consistently saying this because they read someone else say it, without knowing better. I'll repeat, what you say is a falsehood.

When the receiver is on, the hottest part of the top is indeed where the VP is. That's because the VP's heat is added to the receiver's heat. Just because, say, that corner registers at say 120F, and the rest of the receiver at 110F does not mean the VP creates the most heat. If you turned off the amplifier somehow, and the temps dropped to 90F and 80F respectively, would you still say the VP makes more heat than the amp section?

Set your receiver to 4 ohms, and tell me what happens. There is a huge difference. Again, the VP part will be the warmest on top, but the overall heat change makes the VP's heat quite insignificant.

I've said this on more than one occasion at the AVS thread. People just parrot what somebody else says, w/o trying. I'm sticking to my guns here!

I wonder if there's a way to access the threshold temp setting to turn those fans on in the front left and right of the big Onkyos. I know there's a way to pull up the temp gauges for the sensors.

http://forums.audioholics.com/forums/showthread.php?t=42276

 

[Davemcc]

The right rear corner of my Integra 9.8 can get too hot to leave your hand on it for more than a second or two. I haven't recorded the actual temperature at that location but let's just say that I'm glad there is no amp section in there.

 

[MatthewB.]

I've used my 805 strictly as a preamp and the videochips account for 90% of the heat.

 

[jostenmeat]

I've used my 805 strictly as a preamp and the videochips account for 90% of the heat.

Have you ever once, just once, measured the temp difference when in 4 Ohm setting, as opposed to 6 ohm? Just one time, ever? After you try that for the first time, imagine how much more different it would be if it was completely off.

The difference in temperature between 4 and 6 ohm settings is VERY DRASTIC.

I also use mine as pre/pro only.

This is the last time I vented at the AVS owner's thread.
http://www.avsforum.com/avs-vb/showthread.php?p=16184380&highlight=#post16184380

 

[PENG]

I've used my 805 strictly as a preamp and the videochips account for 90% of the heat.

You could be right if you were not using the amps but may be you should try using all 7 internal amps to drive floor standing speakers of average sensitivity to near reference level SPL and find out how much hotter it can get.