Suggestions on going from 2.1 to 2.0 - AVS Forum
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post #1 of 11 Old 03-28-2008, 09:55 PM - Thread Starter
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I have a plain Onkyo 2 ch amp/tuner
Currently running 2 bookshelf Infinities and a JBL powered sub.

Depending on where I am in the room, the sub sound great or bad...
I would like to get rid of it and stick with full range speakers.

Are there full range speakers in near book shelf size??
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post #2 of 11 Old 03-29-2008, 08:07 AM
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Quote:
Originally Posted by hombrewdude View Post

I have a plain Onkyo 2 ch amp/tuner
Currently running 2 bookshelf Infinities and a JBL powered sub.

Depending on where I am in the room, the sub sound great or bad...
I would like to get rid of it and stick with full range speakers.

Are there full range speakers in near book shelf size??


First off if done as I think you are, it is actually 2.0 not ".1" , alot of people confuse the sub's role / designation wih respect to two channel listening.

As far as sounding "great or bad", so long as it sounds great in your listening location(sweet spot) what's the issue ???? it is probaably a fair assumption that your room is full of various "nulls and nodes" so proper acoustic treatments along with good bass mg'mt processing would be in order.
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post #3 of 11 Old 03-29-2008, 08:15 AM - Thread Starter
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I think you are correct.
I ran the Infinity IL-10's alone this morning, without the sub.
The sound was just not there.
The infinity lack depth - but are very clear.

I wonder if I would be better off with a powered sub in each speaker.
And remove my single 10" sub.

Or I could go with a pair of higher end speakers and no sub.

My problem with the single powered sub, is that it needs constant adjustment for the different types of music between my wife and I.
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post #4 of 11 Old 03-29-2008, 08:23 AM
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Quote:
Originally Posted by hombrewdude View Post

My problem with the single powered sub, is that it needs constant adjustment for the different types of music between my wife and I.

Shouldn't be ! One very possible flaw in what your doing, which would create this percieved need, is that you are running your sub beyond it's intention.

subs should never be thought for any more than the bottom two octaves and preferably the bottom only ! With that being said the bottom octave when integrated properly will have no discernable impact whatsoever on Genre of music.
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post #5 of 11 Old 03-29-2008, 08:33 AM - Thread Starter
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I agree with you... this is what I think the problem is.

The sub is filtering out the mids before they reach my IL-10's
So I have the frequency of the sub set to high.

What I was thinking...
My IL-10's have an individual input for the tweeter and midrange.
I could have sub filter only the tweeter.
Run the midrange direct from my amplifier.

My other option is to run the IL-10's direct from the amplifier and run the sub separate. But my amplifier does not appear to have low level RCA type outputs.
It is an Onkyo TX-8511
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post #6 of 11 Old 03-29-2008, 09:06 AM
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Quote:
Originally Posted by hombrewdude View Post

I agree with you... this is what I think the problem is.

The sub is filtering out the mids before they reach my IL-10's
So I have the frequency of the sub set to high.

What I was thinking...
My IL-10's have an individual input for the tweeter and midrange.
I could have sub filter only the tweeter.
Run the midrange direct from my amplifier.

My other option is to run the IL-10's direct from the amplifier and run the sub separate. But my amplifier does not appear to have low level RCA type outputs.
It is an Onkyo TX-8511

If the sub has speaker wire inputs, use them. And wire the Infinitys direct to the Onkyo. So in effect, you'll be wiring the sub and mains in parallel from the Onkyo.
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post #7 of 11 Old 03-29-2008, 09:09 AM - Thread Starter
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My speakers would be on channel A and the Sub on channel B then?
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post #8 of 11 Old 03-29-2008, 09:32 AM - Thread Starter
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This was a quick and easy change.
I do not know why I had it in my head that I needed to run the IL-10's through the sub first.
The speakers sound much better now.
The sub is still not very good. It was a cheap JBL 10" type.
The bass is not very crisp.
I will probably move it downstairs to my TV system.
I need to look for a nice clean sub for my stereo now.
I am not even sure if I need 10", as the room is small
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post #9 of 11 Old 03-29-2008, 09:35 AM
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The little bit of info I could find on the IL10 is that they are really a surround speaker, unlike the IL30.
So I would suggest you buy a speaker at least like a IL30 that goes down to 48htz.

In my stereo setup I have my mains (JBL L212) connected to the power amp and the sub connected to the second set of outs on the pre-amp. But the difference is that the L212s with an 8" mid-bass driver, in a sealed box, will naturally roll off at about -6db @ 40 htz, and with the sub set to 70 htz I get a flat response.

Your IL10 FR is only down to 56 htz. So I don't know what I first suggested will work w/o doing damage.
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post #10 of 11 Old 03-29-2008, 09:47 AM
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Check out the era D4 and D5 bookshelf speakers. They play amazingly low for their size. They are top-notch quality speakers. There is a thread in the "Speakers" forum on here about era gear.

http://www.signalpathint.com/index.p...-Speakers.html
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post #11 of 11 Old 03-29-2008, 09:48 AM
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We posted at almost the same time. Well, if they sound good, that's all that matters. As far as subs go, I wouldn't use anything smaller than a 12".
Every room is different, so try moving the sub around.
In my somewhat small room (13x17) in which one end steps down, twice, to only 8', I have the 12" sub between the mains and back about a foot.
In previous rooms I've had the sub in a front corner to get the most from the sub.
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