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expiredMrCreant posted Feb 16, 2022 05:44 PM
expiredMrCreant posted Feb 16, 2022 05:44 PM

Studio 520C | 150-watt, dual 4" centre-channel loudspeaker $89.99

$90

JBL
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truly enveloping theatre-quality surround-sound experience begins with the centre channel. The Studio 520C centre-channel loudspeaker raises your home system to the next level with the kind of advanced technology that JBL® engineers developed for professional audio systems. The Studio 520C features a pair of 4-inch (100-millimetre) low-frequency woofers and a high-frequency compression driver surrounded by a glass-filled Bi-Radial® horn, a combination that delivers crisp, focused, dimensionally accurate sound. Using specially developed materials – including a ribbed PolyPlas™ cone and a Symmetrical Field Geometry™ (SFG) magnet assembly for the woofers – the Studio 520C delivers powerful and focused bass sound. A compression tweeter housed within the same type of Bi-Radial horn that JBL engineers developed for concert sound systems delivers high frequencies that are equally distinct and precisely aimed.

https://www.jbl.com/STUDIO+520CBK...tent=Louds
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truly enveloping theatre-quality surround-sound experience begins with the centre channel. The Studio 520C centre-channel loudspeaker raises your home system to the next level with the kind of advanced technology that JBL® engineers developed for professional audio systems. The Studio 520C features a pair of 4-inch (100-millimetre) low-frequency woofers and a high-frequency compression driver surrounded by a glass-filled Bi-Radial® horn, a combination that delivers crisp, focused, dimensionally accurate sound. Using specially developed materials – including a ribbed PolyPlas™ cone and a Symmetrical Field Geometry™ (SFG) magnet assembly for the woofers – the Studio 520C delivers powerful and focused bass sound. A compression tweeter housed within the same type of Bi-Radial horn that JBL engineers developed for concert sound systems delivers high frequencies that are equally distinct and precisely aimed.

https://www.jbl.com/STUDIO+520CBK...tent=Louds

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Feb 16, 2022 05:50 PM
9,243 Posts
Joined Dec 2012
JimBanvilleFeb 16, 2022 05:50 PM
9,243 Posts
Why most center speakers suck and aren't even necessary in many situations...
https://youtu.be/GZrdsxrcpBw
Feb 16, 2022 06:18 PM
2,997 Posts
Joined Jul 2017
fintlewoodlewixFeb 16, 2022 06:18 PM
2,997 Posts
Just use a 530 for the center.
Feb 16, 2022 07:18 PM
9,243 Posts
Joined Dec 2012
JimBanvilleFeb 16, 2022 07:18 PM
9,243 Posts
Quote from PoopyMcPoopyFace :
Just use a 530 for the center.
Or no center if you sit between the mains.
1
Feb 16, 2022 07:20 PM
2,997 Posts
Joined Jul 2017
fintlewoodlewixFeb 16, 2022 07:20 PM
2,997 Posts
Quote from JimBanville :
Or no center if you sit between the mains.
This is what I do. Only issue is that mixes are often made for a center.
Feb 16, 2022 07:53 PM
208 Posts
Joined Jan 2019
NootnacFeb 16, 2022 07:53 PM
208 Posts
This center channel design is probably the worst of all types. Avoid.
Feb 16, 2022 09:03 PM
9,243 Posts
Joined Dec 2012
JimBanvilleFeb 16, 2022 09:03 PM
9,243 Posts
Quote from Nootnac :
This center channel design is probably the worst of all types. Avoid.
True!
Feb 16, 2022 09:12 PM
350 Posts
Joined Oct 2009
CjchapsFeb 16, 2022 09:12 PM
350 Posts
Quote from Nootnac :
This center channel design is probably the worst of all types. Avoid.
Care to elaborate?

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Feb 16, 2022 09:18 PM
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Joined Dec 2012
JimBanvilleFeb 16, 2022 09:18 PM
9,243 Posts
Quote from PoopyMcPoopyFace :
This is what I do. Only issue is that mixes are often made for a center.
I would argue that a pair of main speakers that image well can create a phantom center image from any mix that should convince you that there was an actual physical center speaker in front of you, only a "better" center "phantom speaker" because its timbre will be identical to the mains. It's been happening for decades in stereo mixes.
The center speaker really only has two benefits over a phantom center. First is anchoring dialog to the screen for people sitting off to the sides of the screen, and second is allowing you to turn up the center channel mix's volume if necessary. "Better" sound has never been a reason to use a center speaker in the most cases. The center speakers themselves are a terrible design 95% of the time. The ironic part is that so many people use these horizontal MTM designs for the listeners off to the sides, while at the same time, due to the lobing effect due to the design, those side positioned listeners are getting poor, mismatched sound. My room is shallow and wide, so I do use a physical center speaker. It is identical to my mains and vertically oriented.
Last edited by JimBanville February 16, 2022 at 02:41 PM.
Feb 16, 2022 09:26 PM
9,243 Posts
Joined Dec 2012
JimBanvilleFeb 16, 2022 09:26 PM
9,243 Posts
Quote from Cjchaps :
Care to elaborate?
Watch the video linked in the first reply to the post.
Feb 16, 2022 10:36 PM
208 Posts
Joined Jan 2019
NootnacFeb 16, 2022 10:36 PM
208 Posts
Quote from Cjchaps :
Care to elaborate?
Essentially, this is called the MTM design. Midrange, tweeter, midrange. And it sucks because as you move left or right from the axis, the sound changes dramatically for the listeners.

The "fix" is to raise the tweeter slightly above the axis of the midranges, but this too generally sounds bad.

The best option for a center channel is to get a third speaker, the same as the front left and right". Failing this, any speaker with vertical arrangement of the woofers.

Otherwise, they can do a WTMW design where the two W woofers are on a horizontal axis and the tweeter and midrange are on a second, vertical axis. The WTMW design is harder to find.
Feb 16, 2022 10:42 PM
2,997 Posts
Joined Jul 2017
fintlewoodlewixFeb 16, 2022 10:42 PM
2,997 Posts
Quote from JimBanville :
I would argue that a pair of main speakers that image well can create a phantom center image from any mix that should convince you that there was an actual physical center speaker in front of you, only a "better" center "phantom speaker" because its timbre will be identical to the mains. It's been happening for decades in stereo mixes.
The center speaker really only has two benefits over a phantom center. First is anchoring dialog to the screen for people sitting off to the sides of the screen, and second is allowing you to turn up the center channel mix's volume if necessary. "Better" sound has never been a reason to use a center speaker in the most cases. The center speakers themselves are a terrible design 95% of the time. The ironic part is that so many people use these horizontal MTM designs for the listeners off to the sides, while at the same time, due to the lobing effect due to the design, those side positioned listeners are getting poor, mismatched sound. My room is shallow and wide, so I do use a physical center speaker. It is identical to my mains and vertically oriented.
This is all completely true. But if I want surround, the LCR is meant for an LCR and not an LR.
Feb 18, 2022 03:10 PM
1,164 Posts
Joined May 2019
Max_CreditCardsFeb 18, 2022 03:10 PM
1,164 Posts
Quote from PoopyMcPoopyFace :
Just use a 530 for the center.
This is the way. Should be fairly ez to sell the other 530 to someone looking to do the same, or vice versa
Feb 18, 2022 03:16 PM
1,164 Posts
Joined May 2019
Max_CreditCardsFeb 18, 2022 03:16 PM
1,164 Posts
590's ($399) 580's ($299) 530's ($289/pr) still on sale as well.
Feb 18, 2022 03:28 PM
350 Posts
Joined Oct 2009
CjchapsFeb 18, 2022 03:28 PM
350 Posts
Quote from Max_CreditCards :
This is the way. Should be fairly ez to sell the other 530 to someone looking to do the same, or vice versa
In regards to the JBLs I've seen a lot of people post the advice to just use a 530 instead of the 520c. I wonder how many people actually did testing on their own to determine what was better. I watched the video in the 2nd post and decided to do some pink noise testing on my own. I have both the 520c and 530's. I downloaded a noise generator app(noise generator) and also decibel meter app(Decibel x). I generated pink noise, pumped it through my speakers(3.1 config), and then took decibel measurements in the areas where people sit in my room(at ear level). I found that the 520c center speaker in my configuration had less contrast in the decibel amounts than the 530 did. I tried the 530 vertical and horizontal and came to the same conclusion that the 520c center was better. The video was really interesting and I did get different readings in different seating positions as the guy said you would.

My decibel readings were right around 40 decibel, and the difference I saw according to the sound meter app was 2.4 decibel difference using the 520c and about 2.6 using the 530. They were very close and I don't know if I could tell the difference by ear but in my situation using the 530 would make things worse, not better.

If you have both a 520c and 530 I recommend trying to test things out yourself. It's free to download the apps and IMO relatively easy to take the readings and come up with your own conclusions. It's easier and cheaper to just buy the 520c vs buying a pair of the 530's and then selling one. Of course every situation is unique and you may get different results than me, but I would be interested to hear if anyone else tests them and to hear about your findings.

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Feb 18, 2022 03:51 PM
7,159 Posts
Joined Aug 2010
rootbearFeb 18, 2022 03:51 PM
7,159 Posts
So this thing would not be a significant improvement over the Def. Pro 1000 I am using now (and got for $20)? https://www.definitivetechnology....enter-1000

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