does 2 channel mean no amp? - AVS Forum
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post #1 of 17 Old 01-18-2013, 08:53 AM - Thread Starter
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i was looking at super cheap sound bars and can't really tell if they're amplified. the cheapest one i found is this lg 2020a, it says it's a 2 channel but i don't know if it's powered.



http://www.lg.com/us/home-theater-systems/lg-NB2020A
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post #2 of 17 Old 01-18-2013, 09:04 AM
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It says "40W Total Power". That means it includes an amplifier.

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post #3 of 17 Old 01-18-2013, 09:17 AM - Thread Starter
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wicked thanks.
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post #4 of 17 Old 01-18-2013, 09:50 AM
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You're very welcome.

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post #5 of 17 Old 01-18-2013, 10:06 AM
 
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Quote:
i was looking at super cheap sound bars and can't really tell if they're amplified

How do you think they work?
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post #6 of 17 Old 01-18-2013, 10:28 AM - Thread Starter
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Quote:
Originally Posted by SAM64 View Post

How do you think they work?

You've never seen speakers without built in amps before?
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post #7 of 17 Old 01-18-2013, 10:37 AM
 
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Originally Posted by svt2nv View Post

You've never seen speakers without built in amps before?

Of course...why ask that?

how do you think speakers are driven...magic?
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post #8 of 17 Old 01-18-2013, 10:39 AM
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There is a wide variety of devices sold as soundbars.
Some have HDMI connections and internal amps.
Some have line-level analog connections and internal amps.
Some have speaker connections and no internal amps -- so you need a separate receiver for them.
And some have absurdly high prices for little content.

In other words, you have to shop carefully to get the type you need.

Note that soundbars with larger speakers usually will provide better sound than the ones with tiny speakers, but they'll also tend to cost more. Some have external "subwoofers" to improve the sound. I put the word "subwoofer" in quotes because they usually are nothing of the kind. They're frequently just separate woofers used to fill in the upper bass that the tiny speakers in the soundbar itself can't provide. Subwoofers typically have speakers larger than 8" in diameter plus their own builtin amplifier.

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post #9 of 17 Old 01-18-2013, 10:46 AM - Thread Starter
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Quote:
Originally Posted by SAM64 View Post

Of course...why ask that?

how do you think speakers are driven...magic?

...

Quote:
Originally Posted by Selden Ball View Post

There is a wide variety of devices sold as soundbars.
Some have HDMI connections and internal amps.
Some have line-level analog connections and internal amps.
Some have speaker connections and no internal amps -- so you need a separate receiver for them.
And some have absurdly high prices for little content.
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post #10 of 17 Old 01-18-2013, 12:16 PM
 
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woosh....right over your head....thanks for trying though wink.gif
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post #11 of 17 Old 01-18-2013, 07:43 PM - Thread Starter
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woosh....right over your head....thanks for trying though wink.gif

solid back peddle champ wink.gif
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post #12 of 17 Old 01-19-2013, 07:23 AM
 
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lol
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post #13 of 17 Old 01-22-2013, 12:25 PM
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Quote:
Originally Posted by svt2nv View Post

does 2 channel mean no amp?


2 channel means 2 speakers. As opposed to 5.1 which is 5 speakers, .1 = one subwoofer.
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post #14 of 17 Old 01-22-2013, 04:56 PM
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Some sound bars have amplifiers and some don't; most do, but you can't assume it.

Read the detailed specs.
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post #15 of 17 Old 01-23-2013, 12:17 AM - Thread Starter
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thanks guys. i ended up picking up a cheapo insignia bar for 80 new, it did the trick for my tv stereo.
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post #16 of 17 Old 01-23-2013, 01:02 PM
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I read the spec on the lg soundbar that you asked about. If good sound is what you're after, what does 10% THD mean when it comes to sound quality?
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post #17 of 17 Old 01-25-2013, 08:28 PM
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Quote:
Originally Posted by vipin62 View Post

I read the spec on the lg soundbar that you asked about. If good sound is what you're after, what does 10% THD mean when it comes to sound quality?

It means that dialog will probably sound like someone speaking with tin foil over their mouth. LOL

It says the output is 20w x 2 at 10% THD, so I'm guessing that 5 to 8 watts is all these are good for when it comes to clean audio.

HD-DVD = 94
Blu-Ray = 120 ( 24 Warner red2blu )
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