Archive for the ‘27’ Category
Just in case you’ve been reading around and researching the many terms and topics that concern surround sound and the many surround sound systems on the market today, I thought it might be a good idea to explain some of the terminology that is floating around. First of all there are many initials names and numbers floating around when it comes to surround sound technology and equipment, it’s no wonder that many of us mere mortal consumers are more than a little confused by it all. Hopefully the information you find below will prove helpful as you weave through the wired jungles of modern sound technology.
The first and probably most common thing you will see in these circles is Dolby Digital. While there are many complicated definitions of this term the one that will matter most to you, as a consumer is that right now it is the leading format on the market when it comes to processing the digital data that your system will need to process. There are better brands such as DTS when it comes to musical sound for this function but the vast majority of television broadcasts and DVDs are optimized for Dolby.
Speaking of DTS, at the moment they are Dolby’s primary competition. While most items you find on the market such as DVDs are viewable in both DTS and Dolby you need to make sure that they system you purchase whether Dolby or DTS can read both formats for those times when your favorite flick just might not be enhanced for both.
Now perhaps the most confusing of terms when it comes to surround sound systems would be 5.1. It looks so innocent just sitting there but most people are ready to pull out their hair when they realize that it really stands for a system that includes 6 speakers rather than five. The “.1″ in the name refers to the frequency of the subwoofer (or Low Frequency Effects-LFE), which is .1. Despite the existence of ‘better’ systems on the market today, most movies are optimized for this particular set up so this will be of the most value to you with the current products on the market rather than spending more for systems that the DVD makes haven’t yet caught up with.
DTS ES refers to a format commonly referred to as 6.1. In this format there is one additional speaker moved to the center rear of the configuration and the two-rear left and right speakers are moved forward. And THX EX 7.1 is what happens when you add yet another speaker. There aren’t too many films at the moment that use this particular format some notable exceptions would be the Star Wars movies. This means that movies haven’t really caught up to the technology of either of these systems but they are on the market and some people simply must have them. I recommend going with a superior 5.1 channel surround sound system for the time being and adding speakers when there are more reasons to do so.
This list is by no means exhaustive but will give you a basic overview of the information that is relevant to you as you look into the various surround sound systems on the market today. You shouldn’t have to weed through volumes of confusing terminology in order to find out that the system you are interested in actually has 6 speakers rather than 5. My hope is that you can go in armed with basic knowledge that will help you make an informed buying decision.
Nicholas Tan
http://www.articlesbase.com/television-articles/surround-sound-demystifying-surround-sound-terminology-718705.html
It’s the only spare place to put it and I can’t bare to move it because it looks awesome.
If fits on top with plenty of space. It’s a sony subwoofer from the BDV E370 set. I tried it with the lamp on and even on the loudest of film/sound sections there is minimal vibrations from the subwoofer, which is then being sent to the lava lamp. The lamp has a metalic/plastic stand for it’s base which doesn’t appear to get hot.
Will the vibrations affect the internal structure and workings of the lava lamp over time?
Is it dangerous to keep it there or perfectly safe?
Thanks in advance!
I don’t see any problem with this. There is even a possibility that it may help. Have you even seen a lava lamp where the oil inside has broken into different blobs and won’t go back together? The vibrations from your sub may actually help the oil stay together. The vibrations could help defeat the surface tension and allow blobs that might otherwise stay separate get back together.
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what would be the effect of mounting a sub on a single board without sides and using a broom stick for like a stand on all four corners of the square board that I would mount it on and then having a second board at the bottom of the broom sticks for looks kind of. by the way all of this would be painted so it would look good and it would be in my house.
chances are that it would not sound too good because 95% of subs are made to be installed inside of a box (sealed, ported or bandpass) and that is what gives them their sound/bass. if you don’t have them inside of a box you will not get most of your bass because you will experience an effect known as "sound cancellation"
a sub thats not mounted in a box MUST be designed to be used like that and they are know as "free-air"
Free-air systems save space and have flat frequency response. The woofer must be specifically designed for free-air use. The lack of a box makes them more convenient to install, but their power handling levels are usually much lower than their boxed counterparts.
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1) http://www.amazon.com/Velodyne-ImpactMini-Powered-Subwoofer-Small/dp/B001GON5CE/ref=pd_ybh_16?pf_rd_p=280800601&pf_rd_s=center-2&pf_rd_t=1501&pf_rd_i=ybh&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=15BX6232TGFQ41C1SCYA
2) http://www.amazon.com/Polk-Audio-Compact-Powered-Subwoofer/dp/B000P0528U/ref=sr_1_1?s=electronics&ie=UTF8&qid=1277957295&sr=1-1
3) http://www.amazon.com/Polk-Audio-MicroPRO-Subwoofer-Speaker/dp/B0016GS1DK/ref=pd_ybh_5?pf_rd_p=280800601&pf_rd_s=center-2&pf_rd_t=1501&pf_rd_i=ybh&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=15BX6232TGFQ41C1SCYA
I like number 3 but the one I am really wanting is the Polk Audio PSW111. I am placing my subwoofer in my tv stand with the front and the rear clear of any doors or walls. It will be completely enclosed on the bottom, top, and sides. Money is an issue in this purchase by the way. Also should I get a floor firing or a front firing subwoofer? I would like to feel the boom but I would rather it be quality.
also if you need to know I am using the Onkyo TX-SR608 receiver, 2 Polk Audio Monitor 70’s for the fronts, a Polk Audio CS2 center channel, and 4 Polk Audio OWM3 for the surrounds. I want a sub that can blend but give boom when I turn it up.
Also, If I decide I do not want a compact sub and move it out of the stand…which is what I really am thinking about doing. I am wanting to get the Polk Audio PSW505. It matches all of my speakers and has a 300w RMS with 460w peak. It’s frequency response is 23Hz - 160Hz.
Hmm…
Well, out of the 3, I’d go for the Velodyne.
all choices will give you great bass.
But if you want Bass quality, accuracy, then go for th Velodyne - great specs, compact, and has a downward firing 8" passive radiator. The 6.5" powered woofer should give great punchy bass.
Velodyne is been known for great subs - that audio enthusiasts endorse.
The third one is a little pricey… and the Polk Audio PSW505 may be quite large and also, you’ll get bass quantity vs. quality. Ultimately, it is up to you, and your usage is known best by you.
Hope this helps!
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