Subs drown out my speakers - Page 4 - AVS Forum
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post #91 of 108 Old 07-10-2012, 05:05 AM - Thread Starter
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I also have been asking around if any one I know has an spl meter, can't seem to borrow one. Guess I may have to go buy one but I'd rather not spend that $100. I do think my room kinda sucks as far as the "gain" everyone talks about. I have cathedral ceilings that go up to 13', the room itself is fairly long, and its open into the kitchen, office, and hallway. Lots of places for sound to get eaten up.
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post #92 of 108 Old 07-10-2012, 05:21 AM
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Parts Express mini digital spl meter $22. Easy to work.
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post #93 of 108 Old 07-10-2012, 05:31 AM
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Parts Express mini digital spl meter $22. Easy to work.
-1. It's 'A' weighted, so it does not measure bass. The Radio Shack meter remains the standard.

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post #94 of 108 Old 07-10-2012, 08:54 AM
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Originally Posted by derekhonda View Post

I also have been asking around if any one I know has an spl meter, can't seem to borrow one. Guess I may have to go buy one but I'd rather not spend that $100. I do think my room kinda sucks as far as the "gain" everyone talks about. I have cathedral ceilings that go up to 13', the room itself is fairly long, and its open into the kitchen, office, and hallway. Lots of places for sound to get eaten up.

Use either an ipod touch, iphone, android, and get a free SPL meter app. I compared mine to my radioshack SPL meter and it is virtually identical. might not be exact but it gives you a good idea.
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post #95 of 108 Old 07-10-2012, 11:10 AM - Thread Starter
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See I downloaded the spl meter for my droid and while i picked up the dbs, i maybe didnt know how to read it? It gave me nothing as far as the subs dbs and hzs.
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post #96 of 108 Old 07-10-2012, 11:20 AM
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It gave me nothing as far as the subs dbs and hzs.
That requires an RTA, or measuring the output with a sine wave generator as the source.

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post #97 of 108 Old 07-11-2012, 05:35 AM
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See I downloaded the spl meter for my droid and while i picked up the dbs, i maybe didnt know how to read it? It gave me nothing as far as the subs dbs and hzs.

use a website or program to play certain frequencies over your system and measure them (the dB level) with your dB meter. you will know what frequency it is based on what you select to play.
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post #98 of 108 Old 07-11-2012, 07:12 AM
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use a website or program to play certain frequencies over your system and measure them (the dB level) with your dB meter. you will know what frequency it is based on what you select to play.

Without knowing the measurement correction offsets for this phone, this won't be very effective for determining the frequency response curve of his subs in his room. This is one reason why the Radio Shack SPL meters are popular. The AV community has created calibration files (search the Home Theater Shack forums) that can tell you how to adjust the measurements to get a fairly accurate reading. This is one reason why Bill/Yoda recommended it as the "standard" above (he is an audio Yoda smile.gif ).

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post #99 of 108 Old 07-11-2012, 07:18 AM
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Without knowing the measurement correction offsets for this phone, this won't be very effective for determining the frequency response curve of his subs in his room. This is one reason why the Radio Shack SPL meters are popular. The AV community has created calibration files (search the Home Theater Shack forums) that can tell you how to adjust the measurements to get a fairly accurate reading. This is one reason why Bill/Yoda recommended it as the "standard" above (he is an audio Yoda smile.gif ).

right, but it's a free way to get a "view" of the sound of your room.
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post #100 of 108 Old 07-11-2012, 07:31 AM
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right, but it's a free way to get a "view" of the sound of your room.

That would depend on how much the measurements are off due to the phone mic. Might be a fairly useless, very foggy view. Look at how much the RS meter varies in the lower frequencies. How can you know that his phone is not a lot worse?

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That would depend on how much the measurements are off due to the phone mic. Might be a fairly useless, very foggy view. Look at how much the RS meter varies in the lower frequencies. How can you know that his phone is not a lot worse?

right, its definitely not adequate for very low frequencies, but he would be able to look at basically all of his speakers and half of his sub frequencies for free and then decide if he wants to buy something.
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post #102 of 108 Old 07-11-2012, 09:17 AM
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right, its definitely not adequate for very low frequencies, but he would be able to look at basically all of his speakers and half of his sub frequencies for free and then decide if he wants to buy something.

You are guessing. Here's a graph of the iPhones showing that the original iPhone and iPhone 3GS would be pretty much useless for measuring subwoofer bass response. Unless you know the model of his droid and have seen test data for it, you can't know if it will provide any useful data or not. Could be worse that those two phones.

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post #103 of 108 Old 07-11-2012, 11:10 AM
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359
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Can I bring my guitar and amp over ??? biggrin.gif I promise to bring beer too.

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post #104 of 108 Old 07-11-2012, 11:22 AM
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You are guessing. Here's a graph of the iPhones showing that the original iPhone and iPhone 3GS would be pretty much useless for measuring subwoofer bass response. Unless you know the model of his droid and have seen test data for it, you can't know if it will provide any useful data or not. Could be worse that those two phones.

I guess I am guessing. I compared my droid to a radioshack SPL and it was pretty much the exact levels at all frequencies so that is what im basing my opinion off of.
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post #105 of 108 Old 07-11-2012, 02:01 PM - Thread Starter
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Mines about a 2 year old droid incredible, I don't think its quite up to snuff on a decent built in microphone.

And sure, as long as you like 70s rock and 80's hair bands, we play a weird variety of music....
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post #106 of 108 Old 07-16-2012, 04:44 AM - Thread Starter
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Well, maybe I'll need to look into newer speakers sooner than I thought. My 6 or 7 month old Polk CS1 blew the tweeter out of it this weekend, Wasn't even listening to anything loud! Put starship troopers in about 11pm and half way through the movie started getting a real terrible sound out of it....Anyone know new eggs policy, and no, I still don't have the box!
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post #107 of 108 Old 07-16-2012, 05:43 AM
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Newegg doesn't usually warranty electronics. They rely on the manufacturer's warranty. You'll have to contact Polk. Most likely they can ship you a replacement tweeter.

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post #108 of 108 Old 07-16-2012, 12:54 PM
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With the subs you have something like Klipsch RF-7s or maybe JTR Triple 8s would be appropriate.
JBL pro speakers would also work.
The CHT SHO-10s are also SPL monsters.

Regards,
Charlie

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