Conflicting information

[Fossil]

Hello all. I am in the process of constructing a HT in my basement. I am going with a 7.2.4. Setup. I have purchased a JVC X790RB with an Elunevision 120” 16/9 audioweave screen. As for speakers I want them all IW & IC. I am leaning towards 3x Martin Logan Edge for LCR
With 4x ML IW6, 4x ML IC8, 2x ML Dynamo 1100x subs. As for receivers, I am stuck between 2. The one I want is the Yamaha aventge rx-a3080. My plan would be to purchase a 3 channel amp to power my fronts, as I have been advised by a friend that the 3080 is insufficient for the 4ohm edge. My local AV shop is telling me that I would need a five channel amp, not a 3, as I will have to power 2 of the atmos as well. Otherwise I will only get stereo out of them??? This does not make sense to me. Will my plan work and have full 7.2.4? They are trying to steer me toward the Anthem MRX1120, which could be good as it will have all 11 channels powered and I think it could handle the 3 edges?? Also save me some $$. I am thinking for a 3 channel either the monolith or most likely the Emotiva XPA-3 Gen 3.
Can anyone confirm about the 3080?
Also is there any thoughts on this set up and choices of products?

Any input would greatly be appreciated.

 

[William Lemmerhirt]

From what I know of the 3080, it is 150x9, so you would technically wed another 2ch amp to power all. I would probably choose a two or three channel amp to run the the LCR, or L/R and run the rest of the Yamaha. It’s a pretty robust avr so it should have no problems with the rest of the speakers. In my case, (7.3.4), I use a Yamaha Pro amp to power my mains and a Marantz 6012 for the rest. I have a large room and even at very high volume levels have no problem with power. Crown is another popular pro amp manufacturer(part of the Harmon group. Think JBL mark levinson, infinity etc) that gets a lot of recommendations. Emo and outlaw are fine too and definitely look better, but imo pro amps offer more in the way of value. If you can look at them lol.
I may be speaking out of turn, but I feel most others here, myself included will urge you to seek out other subwoofers. There are some great ID manufacturers that offer better subwoofer value and performance. Rythmik, SVS, PSA, HSU, monolith to name a few. How big is the room? And is it sealed, or connected to other spaces? That’ll be helpful in recommending subwoofer models.

 

[snakeeyes]

You might look at the Monolith 3 amp. That one is recommended a lot.

You should let the Yamaha power the surrounds and ceilings at least. The Yamaha can handle the center too if you get a 2 channel amp instead of a 3 channel.

You won’t get any sound out of the 10th and 11th channels unless you assign at least 2 channels to an amp, such as the main left and right.

 

[Fossil]

From what I know of the 3080, it is 150x9, so you would technically wed another 2ch amp to power all. I would probably choose a two or three channel amp to run the the LCR, or L/R and run the rest of the Yamaha. It’s a pretty robust avr so it should have no problems with the rest of the speakers. In my case, (7.3.4), I use a Yamaha Pro amp to power my mains and a Marantz 6012 for the rest. I have a large room and even at very high volume levels have no problem with power. Crown is another popular pro amp manufacturer(part of the Harmon group. Think JBL mark levinson, infinity etc) that gets a lot of recommendations. Emo and outlaw are fine too and definitely look better, but imo pro amps offer more in the way of value. If you can look at them lol.
I may be speaking out of turn, but I feel most others here, myself included will urge you to seek out other subwoofers. There are some great ID manufacturers that offer better subwoofer value and performance. Rythmik, SVS, PSA, HSU, monolith to name a few. How big is the room? And is it sealed, or connected to other spaces? That’ll be helpful in recommending subwoofer models.

Hi William. Thanks for your response. The svs have been recommended to me before as well. I am not set on ML by any means. I have not even heard them. Where I live there is not many options for going to hear products. I am purely buying this system on browsing the web. I was just thinking, keep to one brand on speakers. My only local Av shop is recommending B&W speakers.
My room 32’w x 22’D and is open to two hallways.

 

[Old Onkyo]

From what I know of the 3080, it is 150x9, so you would technically wed another 2ch amp to power all. I would probably choose a two or three channel amp to run the the LCR, or L/R and run the rest of the Yamaha. It’s a pretty robust avr so it should have no problems with the rest of the speakers. In my case, (7.3.4), I use a Yamaha Pro amp to power my mains and a Marantz 6012 for the rest. I have a large room and even at very high volume levels have no problem with power. Crown is another popular pro amp manufacturer(part of the Harmon group. Think JBL mark levinson, infinity etc) that gets a lot of recommendations. Emo and outlaw are fine too and definitely look better, but imo pro amps offer more in the way of value. If you can look at them lol.
I may be speaking out of turn, but I feel most others here, myself included will urge you to seek out other subwoofers. There are some great ID manufacturers that offer better subwoofer value and performance. Rythmik, SVS, PSA, HSU, monolith to name a few. How big is the room? And is it sealed, or connected to other spaces? That’ll be helpful in recommending subwoofer models.

Like a Yamaha PX 5?

 

[William Lemmerhirt]

Like a Yamaha PX 5?

Yeah. That looks like a great amp. Mines an older p2500s. 250x2. My mains are 92db sensitive and I’ve been very happy.

 

[William Lemmerhirt]

Hi William. Thanks for your response. The svs have been recommended to me before as well. I am not set on ML by any means. I have not even heard them. Where I live there is not many options for going to hear products. I am purely buying this system on browsing the web. I was just thinking, keep to one brand on speakers. My only local Av shop is recommending B&W speakers.
My room 32’w x 22’D and is open to two hallways.

That’s a pretty big room. I’d say over 6000cuft assuming 9’ ceilings.
From SVS, I’d consider at least a pair of pc/Pb 4000’s, and maybe a pair of ultras. I would also consider very capable towers as mains and possibly as a center as well. @danzilla has 3 JBL 590’s as LCR and loves it. I understand though wanting to be IW too. Where are you located, generally speaking?

 

[everettT]

If you go with inwall consider KEF, Atlantic Technology, and Klipsch THX units.

 

[TLS Guy]

Be careful with in walls. The commercial offerings are produced with little to no thought about how to go about an in wall system. Nearly all are open backed. Atlantic technology offer a back box.

Putting open backed speakers in a wall space is a very bad idea. The drivers are not loaded, and even worse the manufacturers are just throwing in their bass/mids designed for ported application. The offerings by and large are a cynical mess to snag the unwary.

Also you really don't want open backed drivers blasting away in a wall space. This allows sound to penetrate all widely in the house.

At the request of my wife I have just designed and built an in wall system. The design challenges are enormous. I have untold design hours in the system.

For a good system you need to make a false wall. Using an extension to a fireplace breast is one viable solution and one I used. You do need more room that offered by a 2 X 4 stud wall space, but not by a lot.

You need to select drivers optimized for sealed application.

If you want a sub, then I chose to use a transmission line design, as they are potent and lend themselves to enclosures with little depth.

This system is in a very large space like yours.

Here are the pictures.

The framing stage.

View with grills off.

Finished except for frames around the equipment cases. The parts will be back from the powder shop in a day or two.

This is a very potent and excellent sounding system. The units are powerful with large motor system with edge wound wire. Total power available and able to be handled is 1000 watts all channels driven.

This is not just good for an in wall system but comparable to very high end separates. My wife and I have had a chance to listen to it extensively now and this is an excellent system that has no equivalent in the commercial offerings. It can take anything that content makers that can throw at it, as well as being an excellent music system with great fidelity and huge dynamic range.

The speaker units are preserved in the C & C shop computer. I could make them available for you if you want a no compromise in wall system. The left and right speakers could obviously also be used as surrounds and rear backs as well as L & R in a 7.1 system.

 

[Danzilla31]

Be careful with in walls. The commercial offerings are produced with little to no thought about how to go about an in wall system. Nearly all are open backed. Atlantic technology offer a back box.

Putting open backed speakers in a wall space is a very bad idea. The drivers are not loaded, and even worse the manufacturers are just throwing in their bass/mids designed for ported application. The offerings by and large are a cynical mess to snag the unwary.

Also you really don't want open backed drivers blasting away in a wall space. This allows sound to penetrate all widely in the house.

At the request of my wife I have just designed and built an in wall system. The design challenges are enormous. I have untold design hours in the system.

For a good system you need to make a false wall. Using an extension to a fireplace breast is one viable solution and one I used. You do need more room that offered by a 2 X 4 stud wall space, but not by a lot.

You need to select drivers optimized for sealed application.

If you want a sub, then I chose to use a transmission line design, as they are potent and lend themselves to enclosures with little depth.

This system is in a very large space like yours.

Here are the pictures.

The framing stage.

View with grills off.

Finished except for frames around the equipment cases. The parts will be back from the powder shop in a day or two.

This is a very potent and excellent sounding system. The units are powerful with large motor system with edge wound wire. Total power available and able to be handled is 1000 watts all channels driven.

This is not just good for an in wall system but comparable to very high end separates. My wife and I have had a chance to listen to it extensively now and this is an excellent system that has no equivalent in the commercial offerings. It can take anything that content makers that can throw at it, as well as being an excellent music system with great fidelity and huge dynamic range.

The speaker units are preserved in the C & C shop computer. I could make them available for you if you want a no compromise in wall system. The left and right speakers could obviously also be used as surrounds and rear backs as well as L & R in a 7.1 system.

It came out amazing beautiful work not just on the system but also the house! Congratulations!

 

[Danzilla31]

Hello all. I am in the process of constructing a HT in my basement. I am going with a 7.2.4. Setup. I have purchased a JVC X790RB with an Elunevision 120” 16/9 audioweave screen. As for speakers I want them all IW & IC. I am leaning towards 3x Martin Logan Edge for LCR
With 4x ML IW6, 4x ML IC8, 2x ML Dynamo 1100x subs. As for receivers, I am stuck between 2. The one I want is the Yamaha aventge rx-a3080. My plan would be to purchase a 3 channel amp to power my fronts, as I have been advised by a friend that the 3080 is insufficient for the 4ohm edge. My local AV shop is telling me that I would need a five channel amp, not a 3, as I will have to power 2 of the atmos as well. Otherwise I will only get stereo out of them??? This does not make sense to me. Will my plan work and have full 7.2.4? They are trying to steer me toward the Anthem MRX1120, which could be good as it will have all 11 channels powered and I think it could handle the 3 edges?? Also save me some $$. I am thinking for a 3 channel either the monolith or most likely the Emotiva XPA-3 Gen 3.
Can anyone confirm about the 3080?
Also is there any thoughts on this set up and choices of products?

Any input would greatly be appreciated.

In a room of that size you have a ton of options and flexibility.

Definitely need more powerful subs for that space Is go with dual Rhythmik FV 18's for a room that big but that's just me I'm a bass junky
The monolith monoprice 15 ported be good huge value on the money
The new Paradigm Defiance subs the 15 inch version
Or hell go all out the monolith M2-15 or the Rhythmik FV25HP's both in duals okay okay maybe I lost control with that last suggestioj lol!!!

 

[Danzilla31]

Also you may want to beef up your in walls in that space rbh makes some excellent and very powerful high end in walls and in ceilings totally recommend.
They are not cheap but I doubt they'd be much more probably less then the ML's and the Bowers and Wilkins they are suggesting

 

[Danzilla31]

Also if @TLS Guy is offering to send you speaker builds man Id snap on that. That man knows his speaker designs and knows how to build a great speaker.

Matter of fact I've had so much drama on my room with my FAF family acceptance factor if I had to do it again I'd go with in walls and would have reached out to him for help for sure on that

 

[snakeeyes]

If you are looking at 15in subs, dual HSU VTF15 is another option.

 

[PENG]

Save yourself some money on the AVR and power amp by not listening to your local av shop!! Their priority tend to be selling you products that benefit their bottom line the most.. That's not to say there are not good people there who may be highly knowledgeable and genuinely try to get you the best bang for the dollars, just that the odds tend to be against you.

Depending on where you are located, there should be deep discounts on the 2018 models such as the AVR-X4500H, X6500H, SR7013, SR6013, RX-A2080, RX-A3080. The AVR-X6500H has 11 amp channels, but that is not a factor if you are going to be adding at least a 3 channel power amp anyway.

For speakers, if you must have in-walls, @TLS Guy should be a good source for ideas. If not, I would recommend SVS, and their customer service is excellent and they will likely answer all questions promptly.

 

[Danzilla31]

If you are looking at 15in subs, dual HSU VTF15 is another option.

+1 on that good suggestion bro

 

[Danzilla31]

Also I believe @Digital Dawn I hope I got his name right knows a lot about Triad in walls that's another excellent option for in walls that would be a good idea to consider.

The nice thing is you have plenty of time to do research and explore all options best of luck with all you do on your project!!!!

 

[CajunLB]

+1 on that good suggestion bro

+2

 

[Pogre]

Conflicting info in the audio hobby? Never!

If you are looking at 15in subs, dual HSU VTF15 is another option.

Another +1 for Hsu. I really, really like SVS. They make outstanding products but you can get a little better bang for your buck in a subwoofer with Hsu Research. Not quite as pretty but performance wise a very good option for the money. I have a large area also and went with a pair of VTF-3 MK5s (price in link is for 2 of them). I have plenty of clean bass on tap and haven't regretted the purchase at all.

 

[Fossil]

Be careful with in walls. The commercial offerings are produced with little to no thought about how to go about an in wall system. Nearly all are open backed. Atlantic technology offer a back box.

Putting open backed speakers in a wall space is a very bad idea. The drivers are not loaded, and even worse the manufacturers are just throwing in their bass/mids designed for ported application. The offerings by and large are a cynical mess to snag the unwary.

Also you really don't want open backed drivers blasting away in a wall space. This allows sound to penetrate all widely in the house.

At the request of my wife I have just designed and built an in wall system. The design challenges are enormous. I have untold design hours in the system.

For a good system you need to make a false wall. Using an extension to a fireplace breast is one viable solution and one I used. You do need more room that offered by a 2 X 4 stud wall space, but not by a lot.

You need to select drivers optimized for sealed application.

If you want a sub, then I chose to use a transmission line design, as they are potent and lend themselves to enclosures with little depth.

This system is in a very large space like yours.

Here are the pictures.

The framing stage.

View with grills off.

Finished except for frames around the equipment cases. The parts will be back from the powder shop in a day or two.

This is a very potent and excellent sounding system. The units are powerful with large motor system with edge wound wire. Total power available and able to be handled is 1000 watts all channels driven.

This is not just good for an in wall system but comparable to very high end separates. My wife and I have had a chance to listen to it extensively now and this is an excellent system that has no equivalent in the commercial offerings. It can take anything that content makers that can throw at it, as well as being an excellent music system with great fidelity and huge dynamic range.

The speaker units are preserved in the C & C shop computer. I could make them available for you if you want a no compromise in wall system. The left and right speakers could obviously also be used as surrounds and rear backs as well as L & R in a 7.1 system.

Thanks for all your input TLS Guy. Are you saying you constructed your own speakers?? I do want the best for my room configuration for sure. My front wall for the lcr behind the screen is in front of a 9” thick concrete wall that has 3” of spray foam on it and is framed with 2x3 studs with 2” gap then sealed between stud and foam. This gives me about 5.5” to finished drywall. My 2 subs will sit on floor under screen in each corner. My surrounds will be I’m a bulkhead for the rears and pillars for side surrounds. Atmos are insulated above them in joists.