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Post by pedrocols on Jul 4, 2015 13:36:03 GMT -5
Not having and exclusive listening room makes things even more challenging. I measure my speakers independently from the listening position at the cutoff point and one speaker measured 10db louder than the other one. I was able to bring the frequency disparity within 2db by re-positioning the speakers. I wanted the speakers to work their best. However, you need to compromise and make the speakers play the room and not the other way around.
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Post by rcheliguy on Jul 4, 2015 14:55:42 GMT -5
I've already been through musical chairs with the speaker positions and while I'm sure I haven't tried every possible position I certainly found a lot of positions that didn't work well.
I'm thinking more about bass traps etc.. now.
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Post by leonski on Jul 5, 2015 3:48:57 GMT -5
It is true that a decent stereo in a terrific room sounds better than a great stereo in a poor room.
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Post by rcheliguy on Jul 5, 2015 13:19:25 GMT -5
It is true that a decent stereo in a terrific room sounds better than a great stereo in a poor room. I'm sure this won't end well. Sometimes knowledge is power. Other times it is just expensive!
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klinemj
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Post by klinemj on Jul 5, 2015 13:48:48 GMT -5
It is true that a decent stereo in a terrific room sounds better than a great stereo in a poor room. I know someone who has a great system but the room makes it sound horrible. So, n=1 says a poor room can overshadow a great system. YMMV. Mark
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Post by pedrocols on Jul 5, 2015 18:37:58 GMT -5
I've already been through musical chairs with the speaker positions and while I'm sure I haven't tried every possible position I certainly found a lot of positions that didn't work well. I'm thinking more about bass traps etc.. now. There are good reasons why mixing engineers use bass traps inside recording studios.....I just can't picture a room with subwoofers and not having any room treatment.
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Post by rcheliguy on Jul 5, 2015 20:34:33 GMT -5
I've already been through musical chairs with the speaker positions and while I'm sure I haven't tried every possible position I certainly found a lot of positions that didn't work well. I'm thinking more about bass traps etc.. now. There are good reasons why mixing engineers use bass traps inside recording studios.....I just can't picture a room with subwoofers and not having any room treatment. I have no reason for a bass trap on one side. It has no corner. The room extends 2.5X as far behind my listening area as the speakers are in front of it. So far so good. Unfortunately the other side is a different story. There is a glass panel door one foot from the corner of the room with drapes. 2 feet after that glass door is a fireplace with a gas log and a glass front followed by a second glass paneled door. I suspect that my testing of the right channel will actually look pretty good and there is a big comfy couch where the first reflection point is. The Left channel has all those hard surfaces and a boxed in corner to deal with. I think it sounds great, but I suspect I'll find some things that don't graph out well. This should be education anyway.
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Post by deltadube on Jul 5, 2015 20:51:31 GMT -5
There are good reasons why mixing engineers use bass traps inside recording studios.....I just can't picture a room with subwoofers and not having any room treatment. I have no reason for a bass trap on one side. It has no corner. The room extends 2.5X as far behind my listening area as the speakers are in front of it. So far so good. Unfortunately the other side is a different story. There is a glass panel door one foot from the corner of the room with drapes. 2 feet after that glass door is a fireplace with a gas log and a glass front followed by a second glass paneled door. I suspect that my testing of the right channel will actually look pretty good and there is a big comfy couch where the first reflection point is. The Left channel has all those hard surfaces and a boxed in corner to deal with. I think it sounds great, but I suspect I'll find some things that don't graph out well. This should be education anyway. build a new room!
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Post by Gary Cook on Jul 5, 2015 21:39:49 GMT -5
The only Emotiva Class D amplifier I would have the slightest interest in would be a subwoofer amp with around 1000 watts into 4 ohms.
Cheers Gary
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Post by leonski on Jul 5, 2015 22:49:26 GMT -5
RCHeliGuy, Given the nature of the audiophile 'hobby', IF you still have a couple (3 would be better) Friends, have 'em come over for some tests. You should be able to provide some adult beverages and try to be engaging with the experiment. Man-Food won't hurt. I made some Bacon Wrapped Kossher Hot Dogs last weekend and they were TERRIFIC.
I've been a help with testing for bass traps. Simply stand your friends IN THE CORNERS. The Difference is AUDIBLE with people IN or NOT in the corners. You can use all that instrumentation LATER for the frequencies it is best at. Say 200hz or 300hz on UP.
DIY bass traps are educational to make. I'd use OC703, maybe. If you are curious, PM me and I'll knock off a rendering from which you will easily get the idea.
My listening area is blessed. It has 8 sides and is very asymmetric. Ceiling is pitched up to the center and is about 11 1/2' tall at that point. The sub is well away from corners and therefore not 'doubled' but rather well dispersed into the room. I have fundamental response to 16hz as shown by a playing of Saint Saens Symphony #3 w/Organ. This is the result of a pipe of 32' length. FEW stereos can reproduce it at all and I doubt ANY at proper levels. Mine will rattle the walls, but full volume is out of the question. You wouldn't beleive how much sheer power you'd need.
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Post by rcheliguy on Jul 6, 2015 7:04:55 GMT -5
My listening area is my Den because it is where I use it most. So I'm making the most of it. As it is I really like how it sounds already. I'm just looking for low lying fruit where I might do something that isn't aesthetically intrusive but has a positive impact.
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Post by avary1 on Jul 6, 2015 9:58:06 GMT -5
l bought accoustic panals from Sams club online. they come in three different colors and work very well for the price. (approx $124 +tax/shipping comes 4 total) ( note two on left sid e. black on top and lighter one below.)
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Post by rcheliguy on Jul 6, 2015 12:11:25 GMT -5
Did you test the frequency response before and after installing them? Were you specifically working to offset some comb filtering?
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Post by avary1 on Jul 6, 2015 18:42:48 GMT -5
l was working to reduce the slight echo in my office so i hung these for that purpose. no measurement conducted in this case but an improvement in the music with the quieter room.
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Post by deltadube on Jul 6, 2015 20:30:22 GMT -5
l bought accoustic panals from Sams club online. they come in three different colors and work very well for the price. (approx $124 +tax/shipping comes 4 total) ( note two on left sid View Attachmente. black on top and lighter one below.) nice setup.. as for the panels.. you could try making your own for 124 dollars and get way better results.. you need some medium to heavy duty bass traps in your front corners.. those little guys are not doing much.. in my pic there are 6inches thick roxul safe n sound they really tighten up the bass when you surround the corner like this the blue one is 6ft high.. nexts time make em floor to ceiling lol..
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Post by avary1 on Jul 7, 2015 1:10:43 GMT -5
Now that's a nice setup. With 2 subs that must sound great!! The panels are nice. You made the red ones also? I'll have to try once I find the materials. Thanks.
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Post by michaelg523 on Jul 14, 2015 4:07:07 GMT -5
I'm sure this won't end well. Sometimes knowledge is power. Other times it is just expensive!
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Post by rcheliguy on Jul 21, 2015 9:26:57 GMT -5
It turns out that I ran into a limitation in my system that made using Room EQ an exercise in futility.
I use a small quiet PC to drive my stereo by Asynchronous USB. The USB preamplifier that I purchased to pull information from the microphone also uses a USB audio driver which conflicts with the OPPO 105D USB driver.
The moment that I plug in the USB preamp the audio quits, so Room EQ can't both drive and measure at the same time with my system.
Until I find a way to keep those drivers from conflicting I won't be able to test.
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Post by Hair Nick on Jul 21, 2015 9:58:05 GMT -5
It is true that a decent stereo in a terrific room sounds better than a great stereo in a poor room. I know someone who has a great system but the room makes it sound horrible. So, n=1 says a poor room can overshadow a great system. YMMV. Mark Honestly some of the best sound I have had in my room was a pair of Airmotiv 4s and an Ultra 10 sub.
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Post by garbulky on Jul 21, 2015 10:06:10 GMT -5
rcheliguy There is a way but it depends on the capabilities of the oppo and what you need to play. If you install foobar - a music player - and also its free downloadable WASAPI plugin. You can specify the output device which will play separately from the default driver .So in this case you would select the microphone as the set as default driver in the windows sound control panel. Then in FOOBAR select the Oppo as the driver. I do know it works with any WASAPI driver. This way you can play the music on the oppo (using foobar only) and use the USB pre-amp at the same time. So to make that simple USB pre-amp (set as default in WINDOWS control panel under audio) Oppo 105 (set as output device in foobar under WASAPI mode - may work even if it's not wasapi mode untested...) Also is your require ment simply to RECORD audio using the USB pre-amp and PLAYBACK using the oppo? If that's the case the conflict is less. In the windows sound tab, there is a playback tab, and a recording tab. It is possible to set the playback as the Oppo device and the RECORD section as the USB pre-amp. I do that all the time with my $30 behringer UCA 202 USB - I use it as an input recording device while playing stuff using the DC-1. Note: you have to check the advanced options - allow device exclusive acess on the windows control panel. etc.
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