Downward vs Forward facing - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 21 Old 11-29-2011, 08:56 PM - Thread Starter
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I have a Martin Logan Dynamo which can either fire downward (wood floors) or forward.

Any particular pros/cons to factor into the decision?

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post #2 of 21 Old 11-29-2011, 11:47 PM
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I have always felt that there's a tad bit more detail and tactile feel available from front firing subs. I've had plenty of both designs (and several others including open baffle), and have always preferred front firing over floor firing.

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post #3 of 21 Old 11-30-2011, 04:34 AM
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If the sub is near-field then it could give give you a more tactile feel with front firing (the air hitting you or the chair), across the room doubtful that there would be much if any difference.

Since you can why not try it both ways. If sub is set for down firing simply lay it on its side, if not you will have to pull driver.
Maybe possible to set it on blocks at corners if it is set for front firing to try down firing.
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post #4 of 21 Old 11-30-2011, 04:56 AM
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Quote:
Originally Posted by jackbuzz View Post

If the sub is near-field then it could give give you a more tactile feel with front firing (the air hitting you or the chair), across the room doubtful that there would be much if any difference.

Well if it's any conciliation to you, none of my setups ever had the sub near-field. And the added detail has always been more noticeable than anything. Granted, it's not a night and day difference, but it's enough that I can hear, and prefer.

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post #5 of 21 Old 11-30-2011, 05:16 AM
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Quote:
Originally Posted by Anamorphic View Post

Well if it's any conciliation to you, none of my setups ever had the sub near-field. And the added detail as always been more noticeable than anything. Granted, it's not a night and day difference, but it's enough that I can hear, and prefer.

I wasn't arguing with what you hear, in fact I was going to present the possibilities of different set-ups carpet/tile/hardwood in the corner or not, how sub is facing, etc... but thought I would just make a general statement that most would probably agree with. Since the OP has the option of trying both ways he can decide for himself what works best.

EDIT: Insert and how that might affect the sound of the 2 types of subs after etc...
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post #6 of 21 Old 11-30-2011, 05:36 AM
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I prefer front firing also. Mainly because my subs always have to be buried somewhere (WAF) and with front firing, I can aim the sound into the clear.
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post #7 of 21 Old 11-30-2011, 05:37 AM
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I presently have a front firing SVS sub and am adding a down firing HSU sub to the mix. Will this present a problem?
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post #8 of 21 Old 11-30-2011, 05:44 AM
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Quote:
Originally Posted by Ericthemidget View Post

I presently have a front firing SVS sub and am adding a down firing HSU sub to the mix. Will this present a problem?

I wouldn't say a problem, but probably not optimal. Using identical subs is typically preferred so you get the same frequency response from each. I think you should be more concerned with using 2 different subs than whether or not the drivers are pointed at 90 degrees relative to each other.
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post #9 of 21 Old 11-30-2011, 05:49 AM
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Quote:
Originally Posted by KidHorn View Post


I wouldn't say a problem, but probably not optimal. Using identical subs is typically preferred so you get the same frequency response from each. I think you should be more concerned with using 2 different subs than whether or not the drivers are pointed at 90 degrees relative to each other.

The SVS I own is 10" which they no longer make.
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post #10 of 21 Old 11-30-2011, 06:19 AM
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Quote:
Originally Posted by jackbuzz View Post

I wasn't arguing with what you hear, in fact I was going to present the possibilities of different set-ups carpet/tile/hardwood in the corner or not, how sub is facing, etc... but thought I would just make a general statement that most would probably agree with. Since the OP has the option of trying both ways he can decide for himself what works best.

EDIT: Insert and how that might affect the sound of the 2 types of subs after etc...

No arguing from me.


Quote:
Originally Posted by Ericthemidget View Post

I presently have a front firing SVS sub and am adding a down firing HSU sub to the mix. Will this present a problem?

Quote:
Originally Posted by KidHorn View Post

I wouldn't say a problem, but probably not optimal. Using identical subs is typically preferred so you get the same frequency response from each. I think you should be more concerned with using 2 different subs than whether or not the drivers are pointed at 90 degrees relative to each other.

I wouldn't exactly say there's any type of problem from using two or more different subs. It's just that the tuning of all of them to blend together properly is a lot more intense and involved. It can be done.

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post #11 of 21 Old 11-30-2011, 11:18 AM
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Quote:
Originally Posted by Ericthemidget View Post

The SVS I own is 10" which they no longer make.

OK, then you have no option. So you can't be kicking yourself. I wouldn't worry about having non matching subs. I'm sure it will sound awesome.
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post #12 of 21 Old 11-30-2011, 11:26 AM - Thread Starter
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i think i find the forward facing to be a little more refined than the downward firing. I was just wondering because I remember when i got it, having that downward firing option was considered a beneficial feature for hardwood floors, but i think there is really very little difference with a preference to forward if any.

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post #13 of 21 Old 11-30-2011, 11:27 AM
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Do you have little kids? Downfiring keeps the driver away from exploring hands/feet/bubble mowers.
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post #14 of 21 Old 11-30-2011, 11:50 AM - Thread Starter
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ha, i do have 3 little ones (all boys) - i always keep the screens on for protection (has some hard plastic in the frame to keep it firm)

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post #15 of 21 Old 11-30-2011, 12:51 PM
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Hey "alrah", I too just bought an HTS and for the speaker part of it, I went ML. (Electro-motion series - ESLs for left, right, C2 for center). Sub-woofer, I got the Dynamo 700. Now my question is, does the type of floor and position affect whether or not to go one way or the other in terms of the firing (downward, forward)?

Currently I have a carpeted living room and it's near the corner next to the right ESL. And as for the room, the walls are what they would consider "bright". Not because of the paint color but because there's not padding or any drapes or any other objects to muffle the sound such as a bookshelf which would then make the room "dull".

Also what would adding ANOTHER sub do? My receiver (Marantz SR7005) does have outputs for 2 sub-woofers. What are the benefits?

P.S. - Originally from the NYC (Queens)
LL
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post #16 of 21 Old 11-30-2011, 12:56 PM
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Quote:
Originally Posted by jaramill View Post

Hey "alrah", I too just bought an HTS and for the speaker part of it, I went ML. (Electro-motion series - ESLs for left, right, C2 for center). Sub-woofer, I got the Dynamo 700. Now my question is, does the type of floor and position affect whether or not to go one way or the other in terms of the firing (downward, forward)?

Currently I have a carpeted living room and it's near the corner next to the right ESL. And as for the room, the walls are what they would consider "bright". Not because of the paint color but because there's not padding or any drapes or another objects to muffle the sound such as a bookshelf which then make the room a "dull" room.

Also what would adding ANOTHER sub do? My receiver (Marantz SR7005) does have outputs for 2 sub-woofers. What are the benefits?

P.S. - Originally from the NYC (Queens)

Two subs can flatten the room response to the sub as well as increase the output if the subs are stacked near each other.

Also, you don't need two sub outputs on the AVR. Y-adatper from monoprice will do the trick!
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post #17 of 21 Old 11-30-2011, 01:13 PM
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Quote:
Originally Posted by Ericthemidget View Post

Two subs can flatten the room response to the sub as well as increase the output if the subs are stacked near each other.

When you say "flatten" you mean distribute if I put the other sub on the other side?

Quote:
Originally Posted by Ericthemidget View Post

Also, you don't need two sub outputs on the AVR. Y-adatper from monoprice will do the trick!

But it's ok to use the 2 outputs from my A/V receiver correct?
And would adding a sub from a different brand make it less optimal? I got a deal on my purchase (0% interest from Magnolia) when I got everything and HSU or SVS or online products only.
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post #18 of 21 Old 11-30-2011, 01:24 PM - Thread Starter
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i dont think you want to fire downward if the floor is carpeted.

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post #19 of 21 Old 11-30-2011, 01:31 PM
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Quote:
Originally Posted by alrha View Post

i dont think you want to fire downward if the floor is carpeted.

Actually, a carpet is much better than hardwood. Less rattle and buzz.
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post #20 of 21 Old 11-30-2011, 01:49 PM
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Quote:
Originally Posted by alrha View Post

i dont think you want to fire downward if the floor is carpeted.

There are a TON of discussions on this topic if you search "down front firing" on AVS. The consensus is that there is no audible difference. Bass wavelengths are far too long to be affected by carpeting.

If you have a sub that can be configured either way, then just choose the orientation that pleases you most.

Easy peasy.
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post #21 of 21 Old 12-01-2011, 06:48 AM
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Quote:
Originally Posted by alrha View Post

i dont think you want to fire downward if the floor is carpeted.

I have an Auralex Gramma. It doesn't matter what's on the floor.
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