Is Yamaha RxA 3080 enough to run a 7.1.2 channel set up with 4 ohm LCR speakers in a 12*16*10 feet room without external Power Amplifier?

[madhulsinghal]

I am just a beginner in home theatre world. I am not an audiophile per se, but enjoy my music and movies.
I have Audiosolutions Overture 203 fronts and 201 centre speakers which are rated as 90W RMS and 180w max unclipped and sensitivity 91db @2.83V 1metre, nominal impedance 4 ohm, minimal 3.25 ohm @200Hz

For surrounds I have Monitor Audio silver fx, for surround back Polk owm3 and for Atmos a pair of cambridge min minx 22. Subwoofer is single PB2000.

AVR Is Yamaha RX-A 3080. Is this AVR sufficient to run this setup which is rated as 150 WPC 2 channel driven 8 ohms.

Or, this set up is missing an external amplifier to fire front 2 or 3 channels like emotiva XPA 3 OR A5175 OR Marantz 7055 or something cost effective that you can suggest.

 

[everettT]

Depends on how loud you listen. It probably will be just fine, but if needed add the amp. Some the yamaha's I've owned in the past had 2ohm dynamic rantings.

 

[madhulsinghal]

My listening decibels are moderate. Rarely I go for loud listenings.

 

[everettT]

My listening decibels are moderate. Rarely I go for loud listenings.

Should be fine and at least you know you have the option to add an amp.

 

[PENG]

I am just a beginner in home theatre world. I am not an audiophile per se, but enjoy my music and movies.
I have Audiosolutions Overture 203 fronts and 201 centre speakers which are rated as 90W RMS and 180w max unclipped and sensitivity 91db @2.83V 1metre, nominal impedance 4 ohm, minimal 3.25 ohm @200Hz

As mentioned, it depends on your room dimensions, seating distance and how loud (spl) do you need. There are online spl calculators that you can use to figure out your need.

In this case though, the answer is, adding an external amp won't make a difference because your speakers are only to handle 180 W peak, and your Yamaha AVR definitely can definitely handle 90 W average/180 W peak into 4 ohms. Regardless, please note that of the 3 amp you mentioned, 2 of them are not more powerful than you AVR anyway, not at all.

 

[madhulsinghal]

My dealer showed me this bench test of Yamaha RXA 3060 (attached).


He said that as my set-up is 7.1.2 i.e. 9 channel setup. As per bench test in 7 channels driven and that too in 8 ohms the power drops to 52 watts. So the speakers will run underpowered and will be strained. He suggested that I should run front three with emotiva A5175.

But as of now I am having no complaints in my set-up, I didn't purchase the external amp. I thought I should take some expert advice before blowing away more money, or even worse blowing away my speakers with excessive power.

As mentioned, it depends on your room dimensions, seating distance and how loud (spl) do you need. There are online spl calculators that you can use to figure out your need.

In this case though, the answer is, adding an external amp won't make a difference because your speakers are only to handle 180 W peak, and your Yamaha AVR definitely can definitely handle 90 W average/180 W peak into 4 ohms. Regardless, please note that of the 3 amp you mentioned, 2 of them are not more powerful than you AVR anyway, not at all.

As mentioned, it depends on your room dimensions, seating distance and how loud (spl) do you need. There are online spl calculators that you can use to figure out your need.

In this case though, the answer is, adding an external amp won't make a difference because your speakers are only to handle 180 W peak, and your Yamaha AVR definitely can definitely handle 90 W average/180 W peak into 4 ohms. Regardless, please note that of the 3 amp you mentioned, 2 of them are not more powerful than you AVR anyway, not at all.

As mentioned, it depends on your room dimensions, seating distance and how loud (spl) do you need. There are online spl calculators that you can use to figure out your need.

In this case though, the answer is, adding an external amp won't make a difference because your speakers are only to handle 180 W peak, and your Yamaha AVR definitely can definitely handle 90 W average/180 W peak into 4 ohms. Regardless, please note that of the 3 amp you mentioned, 2 of them are not more powerful than you AVR anyway, not at all.

As mentioned, it depends on your room dimensions, seating distance and how loud (spl) do you need. There are online spl calculators that you can use to figure out your need.

In this case though, the answer is, adding an external amp won't make a difference because your speakers are only to handle 180 W peak, and your Yamaha AVR definitely can definitely handle 90 W average/180 W peak into 4 ohms. Regardless, please note that of the 3 amp you mentioned, 2 of them are not more powerful than you AVR anyway, not at all.

 

[lovinthehd]

I'd say use the avr and see if any issues arise without the power amp, add one if needed. Your dealer sounds like he just wants to sell you stuff that you may not need at your listening levels.

 

[walter duque]

For moderate you should be fine, for loud you might make it too but for intense you need loads of power.

 

[PENG]

For moderate you should be fine, for loud you might make it too but for intense you need loads of power.

Yeah, but his speakers can't take any real loads of power..well may be for very short time.

 

[PENG]

My dealer showed me this bench test of Yamaha RXA 3060 (attached).


He said that as my set-up is 7.1.2 i.e. 9 channel setup. As per bench test in 7 channels driven and that too in 8 ohms the power drops to 52 watts. So the speakers will run underpowered and will be strained. He suggested that I should run front three with emotiva A5175.

But as of now I am having no complaints in my set-up, I didn't purchase the external amp. I thought I should take some expert advice before blowing away more money, or even worse blowing away my speakers with excessive power.

I agree with HD, your dealer wants to sell you things you don't need, or he doesn't know what he's talking about. S&V's low 7 channel driven output tests were not that meaningful, their reviewers in the past had sort of said so themselves.

Yamaha does appear to have adopted a more aggressive approach with their protective circuitry. If you want to see better 5 and 7 channel driven output figures then you should go with Denon or Marantz, such as the AVR-X4500H, X6500H, SR7013. For real world program (that does not peaks in all channels simultaneously, and even if they did, it would be for short duration, short enough that it won't trigger the power limiter), the RX-A3080 will more likely sound a little more dynamic and powerful. On the basis on money no object, it is good to have power on hand that you don't need/use, so if you are concerned, go for it.

 

[snakeeyes]

I think it is best to try it without the amp first. If you need more power, you’ll need to look at 200w amps. Such as 3 Outlaw Model 2200 amps for the front 3

I’m going to be in a similar boat with my 2060 for 5.1.4 when I install my ceilings, and that’s my game plan. .

 

[walter duque]

Yeah, but his speakers can't take any real loads of power..well may be for very short time.

Good point

 

[walter duque]

I think it is best to try it without the amp first. If you need more power, you’ll need to look at 200w amps. Such as 3 Outlaw Model 2200 amps for the front 3

I’m going to be in a similar boat with my 2060 for 5.1.4 when I install my ceilings, and that’s my game plan. .

200 watts is a good start for entry level power. I prefer a little more.

 

[AcuDefTechGuy]

The RX-A3080 has a Dynamic Power Rating of about 400W x 2 Ch into 2 ohms, about 300W x 2Ch into 4 ohms.

So if you’re wondering if it can handle 4 ohms speakers, the answer is yes.

For a 12x16 room and without blowing your speakers (max rated 190W),you should be good to go.

So don’t sweat it.

 

[madhulsinghal]

Thanx guys for the correct advice..... I could have unnecessarily spent another huge amount

 

[PENG]

Thanx guys for the correct advice..... I could have unnecessarily spent another huge amount

In addition to the dynamic power specs @AcuDefTechGuy posted, did you read the full review you dealer referred to? If not, at least note the part below, and pay attention the the 4 ohm tests. That why I mentioned before, 2 of the 3 power amps you mentioned wouldn't do better than the 3060 on it's own. The MM7055 cannot deliver 290 watts into 4 ohms, two channel driven. You can expect similar performance from the newer 3080.

Regarding the drop off when 7 channels were driven simultaneously, you have to understand that's a test using a continuous sine wave. In the real world, music and movie contents are not continuous sine waves so even during the loudest passages, and again, it will very highly unlikely that all 7 channels would be pushed to their limits at exactly the same moment. So the Yamaha AVR's protective circuit would not likely be triggered, and in short bursts, it should be able to handle much more than what the S&V's test showed.

This graph shows that the RX-A3060’s left channel, from A1 input to speaker output with two channels driving 8-ohm loads, reaches 0.1% distortion at 159.0 watts and 1% distortion at 186.4 watts. Into 4 ohms, the amplifier reaches 0.1% distortion at 228.7 watts and 1% distortion at 294.3 watts.
Read more at https://www.soundandvision.com/content/yamaha-aventage-rx-a3060-av-receiver-review-test-bench#sDigMgDe5v47mSvm.99

Below is what S&V's bench found on the Marantz MM7055 power amp, again, focus on the 4 ohm test:

This graph shows that the MM7055’s left amplifier channel, with two channels driving 8-ohm loads, reaches 0.1 percent distortion at 130.7 watts and 1 percent distortion at 152.8 watts. Into 4 ohms, the amplifier reaches 0.1 percent distortion at 215.8 watts and 1 percent distortion at 236.4 watts.
Read more at https://www.soundandvision.com/content/marantz-av7005-surround-processor-and-mm7055-amplifier-ht-labs-measures#1cM357fDUujUCojO.99

People tend to under estimate the power amp section of AVRs, all the time...

 

[AcuDefTechGuy]

I could have unnecessarily spent another huge amount

Like so many people do.

Of course, some of us just like to own external amps whether we need 2W or 200W because expensive high-quality-no-cheese amps are cool.

Just between us, I would take the amps inside high quality AVRs than many of those cheap lower-quality-cheesy amps.

Just because something is "separate" or "external" does not automatically make them high-end or high-quality.

 

[AcuDefTechGuy]

People tend to under estimate the power amp section of AVRs, all the time...

Remember the Denon 3805 that had a dynamic power output of 170W x 2Ch into 1 ohm?

That was pretty impressive.

 

[Brettc]

Can someone explain to me the difference between Yamaha’s 2 channel integrated amp as opposed to running say running outlaw 2200 to power fronts and center ?


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[lovinthehd]

Can someone explain to me the difference between Yamaha’s 2 channel integrated amp as opposed to running say running outlaw 2200 to power fronts and center ?


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Why would you use an integrated 2ch amp as a power amp at all? Let alone for three channels? Three of the 2200s would work, tho.