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4 18" 5400's powered by 2 qsc rmx 5050's - Page 56

post #1651 of 1767
Thread Starter 
Quote:
Originally Posted by superspeeder View Post

WOW... I just read through this thread from the start - what a journey! RC, I think you need to film a documentary on this build process and sell it to all the DIY freaks on this board! Make sure it includes some good low frequency information in the audio portion, too.

Congratulations on a fantastic build and a GREAT looking set of subs! Wishing you success in getting them integrated with the rest of your system so you and others can enjoy the fruits of your considerable labor.

Thanks for the kind words. I just wish someone more schooled than me could actually "see" what is going on and offer some advise as to direction from here. Unless the person is in the room, I feel that I won't be able to experience the full benefit of most suggestions.
post #1652 of 1767
Thread Starter 
Any reactions to The new Transformers movie audio portion?

Mine is

Any thoughts?
post #1653 of 1767
Thread Starter 
Here I have a question that I hope may be able to be answered by someone with a vast experience with measuring audio.

Here it goes.



Given that most of the DIY community is using readily available measuring gear that is possibly innaccurate to some degree or other, would it be better to take measures and post graphs as they are with no cal files and state the equipment used. That way, instead of seeing a "better" graph, we could see a graph that is probably "at least" what the listener is experiencing in the room.

I say this because, even though my graphs do not come close to the desired flat line output to 0 Hz, I really could not imagine my house or my ears being able to sustain a whole lot more down low. I have experienced chest compression, shortness of breath, eye blur and a host of other things since adding the new cabs. Had I not ever done any measures on my system, I would not be questioning anything. But since I did, I need to, at least, determine if my setup or procedures or equipment is at fault.

Any insight would be greatly appreciated.

Thanks,

Robert
post #1654 of 1767
mr. charles,

what is your final decision on crossover?

are your running your mains, full? or passing some bass to your insane subs?

thanks,
post #1655 of 1767
Thread Starter 
Quote:
Originally Posted by LTD02 View Post

mr. charles,

what is your final decision on crossover?

are your running your mains, full? or passing some bass to your insane subs?

thanks,

At this point, I am running the mains and surrounds full with no HPF on them at all. LFE crossed at 120 Hz.

I like it a lot. I will definitely need someone more schooled than me to set this up so a different way in order for me to appreciate the change.

But, at this moment nothing is set in stone. It just happens to sound really nice to me the way it is.

Any thoughts?

Thanks,

Robert
post #1656 of 1767
awesome! mr. charles.

no thoughts...just curiousity how your monster build is being employed.

if you don't mind saving me the time to search and search...what are your mains (i recall 2241's but my mind is torched at the moment)?
post #1657 of 1767
Thread Starter 
Quote:
Originally Posted by LTD02 View Post

awesome! mr. charles.

no thoughts...just curiousity how your monster build is being employed.

if you don't mind saving me the time to search and search...what are your mains (i recall 2241's but my mind is torched at the moment)?


Electrovoice top cabinets and JBL dual 2241 subs for the bottom. Dual
Electrovoice center and side surround- just applied- Klipsch Forte tops and JBL 2241 in a folded horn cab.

Rear surrounds are being planned out now, but, I think I might go with some Klipsch or put a set of EV's back there since I have them already with a sub to be announced. The center channel is going to have a new sub setup incorporated sooner or later. Just too many projects at the moment.
post #1658 of 1767
Quote:
Originally Posted by robertcharles View Post

Any reactions to The new Transformers movie audio portion?

Mine is

Any thoughts?

I have been watching it for a month and a half now, and I like it. Star Trek bluray has some nasty low stuff, ran it at mid volume with no hp filter and my poor subs almost met their maker. Waiting on Terminator Salvation.
post #1659 of 1767
Thread Starter 
Hey Brandon,

The demo disk is fantastic. I particularly like the last scene with the drums. The Rush moments that are intertwined are just the icing on the cake. I like it!!!!!

Thanks again,

Robert
post #1660 of 1767
I thought you would like that one. I just wish it was recorded a very small tad more bass heavy. Didn't quite seem to have as much depth as I would imagine. Still sounds good in dts.
post #1661 of 1767
Thread Starter 
Quote:
Originally Posted by brandonnash View Post

I thought you would like that one. I just wish it was recorded a very small tad more bass heavy. Didn't quite seem to have as much depth as I would imagine. Still sounds good in dts.


I like it regardless!! Been really crazy around here, so not a lot of time to watch many movies. Last night I watched The Mummy Tomb of the Dragon Emperor again and I found it quite pleasing. The bass throughout the movie is outstanding. I would recommend this movie for it's LFE content as well as the action scenes. My family enjoyed it just as much the second time around.

Hopefully, I will soon be able to show some progress on the upgrades, but there has been too many other problems that needed my immediate attention.
post #1662 of 1767
Thread Starter 
Just watched GI Joe again. That movie really has tons of LFE. The pulse gun is something else. The seats feel like they are about to levitate when the guns go off. I did not go all out, but I will try it soon. Anybody see the movie yet?
post #1663 of 1767
A buddy of mine picked it up on blu ray and said it was really good and had good LFE. He has a HTIB sub and a 15" Dayton DVC sealed that I built for him. His room is smaller than mine and his floors shake with that. I'm going to either borrow that from him or rent it. Not really into action movies that much but I love LFE. Torn between the two.
post #1664 of 1767
Brandon, let me get this straight. You have a DTS-10 and you don't like action movies? That is where all the great LFE is.

Robert,

The RS spl meter is inacurrate down low BUT the cal files are supposed to correct it. That is the whole purpose. My graph says I hit a 120 db's sine wave at 7 hz. What thjat feels like and sounds like is a little rattling in the room. The 7 hz sine wave is very long. When I go upstairs into the kitchen it sounds like an earthquake. I have no doubt it is correct. The problem is that down low it is very hard to feel and hear anything unless very loud(high spl's). Now think of this. You have a movie scene that has 5 and 20 hz bass. The 5 hz bass is 0 db's and the 20 hz bass is -6dbs. We will hear the 20 hz bass over the 5 hz all day long. Knowing that it is being reproduced properly is more important to me. Sine waves although dangerous to VC, has helped me to understand what to expect. The very low frequencies are felt more by the people upstairs then me in my theater.


GI Joe is fantastic. The bass is great and plenty full. I personally loved the 50 cal guns towards the beginning. There are just too amny scenes that were great. 4.5-5.0 stars for bass.
post #1665 of 1767
Quote:
Originally Posted by MKtheater View Post

Brandon, let me get this straight. You have a DTS-10 and you don't like action movies? That is where all the great LFE is.



I was thinking the same thing!


I hope some of your reviews include some action movies.

dbl
post #1666 of 1767
Well, let me clarify...I will watch action movies, they're not on the top of my list. Transformers for instance (the first one) looks great and sounds even better, but the movie itself to me was not good at all. Shia Lawhatever was a horrible actor in that movie and the plot could've been thought up by a 6 year old. The bad robots are trying to find something that will make them more bad and the good robots want to stop them. There's your plot. Bad acting, a very good looking girl, and explosions doesn't make a good movie IMHO.

Give me Braveheart or Lord of the Rings or Band of Brothers anyday because those action movies have a plot to them...along with good sound.
post #1667 of 1767
Quote:
Originally Posted by brandonnash View Post

Well, let me clarify...I will watch action movies, they're not on the top of my list. Transformers for instance (the first one) looks great and sounds even better, but the movie itself to me was not good at all. Shia Lawhatever was a horrible actor in that movie and the plot could've been thought up by a 6 year old. The bad robots are trying to find something that will make them more bad and the good robots want to stop them. There's your plot. Bad acting, a very good looking girl, and explosions doesn't make a good movie IMHO.

Give me Braveheart or Lord of the Rings or Band of Brothers anyday because those action movies have a plot to them...along with good sound.

I agree LOTR is awesome but if you think about it at its core the plot is just save the world from the evil warlord/monster isn't it? Pretty much everything has basic plots, but the execution of it is what counts!
post #1668 of 1767
I watched Echelon Conspiracy last night and I was surprised at how good the sound tract for this movie was. Lots of good hard hitting bass. GI Joe was excellent also. I too am waiting for Terminator Salvation. I may have to watch The Mummy Tomb of the Dragon Emperor again since I changed my system from when I watched it the first time. Robert, how are you doing?
post #1669 of 1767
Quote:
Originally Posted by Decadent_Spectre View Post

I agree LOTR is awesome but if you think about it at its core the plot is just save the world from the evil warlord/monster isn't it? Pretty much everything has basic plots, but the execution of it is what counts!

Good point. I guess its delivery is where its st for lotr. Transformers just didn't do it for me at all. May buy it at some point for the good demo scenes, same goes for GI Joe.
post #1670 of 1767
Transformers is just a popcorn flick that was not made to make you think. It is entertaining and M Fox is insanely hot in it so it works to just as an escape which are what movies are anyway.

If I was looking for a better movie than I would have been disappointed but Transformers was exactly what I was expecting. It reminds me of old Schwarzenegger movies which all you could expect is a corny story line, a few laughs and awesome special effects.

I have only sat through Transformers once in my HT but it has been used plenty of times for demos. Other movies like Braveheart, Godfather I and II, Shawshank Redemption and the like have seen multiple viewings over many years.

You can probably count on one hand how many action movies are multiple view worthy except for demo material. If you don't expect too much then you won't be too disappointed.
post #1671 of 1767
Transformers is terrible and M Fox is a terrible actor. http://www.cinematical.com/2009/09/1...ash-megan-fox/
post #1672 of 1767
Thread Starter 
Quote:
Originally Posted by mjg100 View Post

I watched Echelon Conspiracy last night and I was surprised at how good the sound tract for this movie was. Lots of good hard hitting bass. GI Joe was excellent also. I too am waiting for Terminator Salvation. I may have to watch The Mummy Tomb of the Dragon Emperor again since I changed my system from when I watched it the first time. Robert, how are you doing?


Been working on my rental for last 3 weeks. Needless to say, the tenant problem involved police- a lot of them, drugs, handcuffs, and a cavity search. I was loving that part. I just smiled internally as she was walked into the house for the tunnel probe. Anyway, llots of damage and tons of $ lost.
Tons of other stuff going on in all facets, but I am planning on some HT progress in the next few weeks. We will see.

Thanks,

Robert
post #1673 of 1767
Robert, one thing you could do is do a background check on future renters. Here in Tennessee you can have it done through the Tennessee bureau of investigations the state level "FBI" counterpart. It's not that expensive to do that here $40 I think and it may save you from going through that mess again.
post #1674 of 1767
Hey Robert,

I use the Apartment Owners Association to run tenant screenings for me. It is priced relatively low for the amount of services they provide. I am not sure if they provide service in you area but if not then maybe they can refer someone to you. Here is there website: http://www.aoausa.com/

Even still it can be a pain and time consuming. I have not had time for a sub build for awhile now but hopefully things calm down soon.

Good luck.

Mike
post #1675 of 1767
Thread Starter 
Quote:
Originally Posted by brandonnash View Post

Robert, one thing you could do is do a background check on future renters. Here in Tennessee you can have it done through the Tennessee bureau of investigations the state level "FBI" counterpart. It's not that expensive to do that here $40 I think and it may save you from going through that mess again.


Since Katrina, our city is in shambles. The economic downturn was just the icing on the cake. I had all that done, but the goofballs ended up not being who they said they were. Amazing!! False names and socials. The cars were even criminally obtained. I wonder how many apartments and houses I happen to be renting myself in my name with someone else living there. It seems that criminals are rampant in our city and it isn't getting better. Just the other day, 2 guys tried to take a neighbor's boat from under his carport with a car blocking the way. They were pulling it sideways and tore the boat passed the pillars holding the carport up. The neighbor saw them and they booked out. Not the first time he was robbed. I am getting fed up with it.

Thanks for the insight, I will definitely try again with the


Thanks,

Robert
post #1676 of 1767
Thread Starter 
Quote:
Originally Posted by brandonnash View Post

Robert, one thing you could do is do a background check on future renters. Here in Tennessee you can have it done through the Tennessee bureau of investigations the state level "FBI" counterpart. It's not that expensive to do that here $40 I think and it may save you from going through that mess again.

Quote:
Originally Posted by mjaudio View Post

Hey Robert,

I use the Apartment Owners Association to run tenant screenings for me. It is priced relatively low for the amount of services they provide. I am not sure if they provide service in you area but if not then maybe they can refer someone to you. Here is there website: http://www.aoausa.com/

Even still it can be a pain and time consuming. I have not had time for a sub build for awhile now but hopefully things calm down soo

Good luck.

Mike

Thanks, I will look into that.
post #1677 of 1767
Thread Starter 
OK!

Here is some new info. Although I have not made a change to the setup yet- still in the building phase, I did do a few experiments. Here it goes.

I listened to the Danley fireworks tonight and I had my meter in listening position. I was measuring 107dB on the meter and decided to move around the room as the track played. I was completely astounded that as I went to the front by the screen area, the meter was reading upwards to 122 dB with no change in the controls at all. Also, the floor felt like it was undulating beneath my feet and things that I placed on the stage area were being moved as the track got towards the end. All of this is going on in front of the room and it feels like being in a SPL car at full tilt.

My question is since the cabs are along the side walls, and that is going on in front and my listening position is slightly rearwards of the cabs, would moving them forward, push the effect I am experiencing in the front to the back at all. Or, is this just a trial and error situation?

The cabs are very difficult to move and I have very little choice in placement.
Compromise is definitely a neccessity, but I do have a little wiggle room. I defintely can't do complete corner loading, but I could possibly get something close. I could possibly get within 2 feet of the front wall and the cabs can be rotated up to 90 degrees in that position.

Any thoughts?

Thanks,

Robert
post #1678 of 1767
The whole sub crawl thing is a good thing but for your huge enclosures wouldn't be an acceptable option. Trial and error is the only thing that comes to my mind. Your seats are fixed right?
post #1679 of 1767
Just had a thought. Did you get a better enclosure built for your smaller tc sounds drivers? If so you could always move those around the room to see about better placement for your large enclosures. Find the best spots that way. Or do the real sub crawl method and put them in your main listening position and walk/crawl around the room listening for the best spot. That may work well.
post #1680 of 1767
Robert, in my room I have a fairly large area where the bass is incredibly strong and another area where there's a deep void. No matter where I have moved the subwoofers, it's still the same. Now the room does have some thick concrete walls, but no amount of bass traps has changed those peaks or nulls at all. And I've moved multiple subs around the room, clustered them, etc. I've even placed the subs directly in the null, nothing changes it for some reason.

I do get better sound in the listening zone when they're put in certain areas, but the 2 places with nulls and peaks have never changed or moved.

Your best bet is to borrow someone's smaller sub and move it around the room to see what happens.
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