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#400071 - 01/14/14 06:53 PM Ok so another sub question how many
TroyD Offline
aficionado

Registered: 02/17/04
Posts: 602
Loc: Bridgewater, Nova Scotia, CA
OK my room is going to be 11.5w x 18.5L x 7.5h

SO wondering now would for the size of the room I be better with 4 EEP400's or 2 EP500's

obviously as posted this is for Movies 100%
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#400072 - 01/14/14 06:59 PM Re: Ok so another sub question how many [Re: TroyD]
ClubNeon Offline
connoisseur

Registered: 02/06/09
Posts: 3466
Loc: Western Maryland, USA
If you have the space for the 500, get the 500. The only reason to get the 400, is if you don't physically have enough room for the 500, or if someone tells you that you can't have a speaker that big in the house.
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#400079 - 01/14/14 09:22 PM Re: Ok so another sub question how many [Re: TroyD]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13571
Loc: Iowa
I have 2 350's in a room bigger than that currently, only because my 600amp is getting fixed, and it sounds fine. You may find one 500 would be adequate, but two placed correctly in the room and setup appropriately will give you better smoothness in all seats.
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#400080 - 01/14/14 09:30 PM Re: Ok so another sub question how many [Re: TroyD]
nickbuol Offline
axiomite

Registered: 09/16/04
Posts: 5324
Loc: Marion, IA
What are you trying to accomplish with the multiple subs? You will fill the space with PLENTY of bass from a single decent 12" sub. End goals are a much to know here.

Do you just want louder with some peak/null control? Then go with the two 500s with one centered up front and one centered on the rear wall (or both side walls, but the others are acoustically better according to some).

Do you want to tame the bass/LFE madness found in all rooms and can sacrifice the space, then go with four EP400s with one centered on each of the four walls.
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#400082 - 01/14/14 09:37 PM Re: Ok so another sub question how many [Re: TroyD]
TroyD Offline
aficionado

Registered: 02/17/04
Posts: 602
Loc: Bridgewater, Nova Scotia, CA
I want nice smooth even bottom end.
I have two now and love it.
the only thing I might consider is the EP600. Verticle, directly in front of me under the VP180.
I just thought maybe the four EP400's would fill the room nicely.

its not that big
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Anthem AVM30
Anthem MCA50
M22v4
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EP350
EP500

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#400088 - 01/14/14 10:21 PM Re: Ok so another sub question how many [Re: TroyD]
Argon Offline
connoisseur

Registered: 07/24/04
Posts: 1443
Loc: Oak Ridge, NC
I am guessing that you are looking for that satisfying ummmph the movie creators feed to good subs. IF that is the case, go with the 600 or the two 500s. I have a single 500 in the bonus room. It has a knee wall up to about 4 feet then a 45 degree slope to an 8 foot ceiling. 18 feet wide by 25 feet long. IF I were to crank the one 500, it would likely boom the pictures off the wall. I don't - I keep it even for music listening - but the LFE feed still gets down there on the Action Adventure movies.
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#400097 - 01/15/14 10:05 AM Re: Ok so another sub question how many [Re: TroyD]
TroyD Offline
aficionado

Registered: 02/17/04
Posts: 602
Loc: Bridgewater, Nova Scotia, CA
Ok, so I am down to one EP600 or two EP500.
Probably better off with two EP500's though.
_________________________
Anthem AVM30
Anthem MCA50
M22v4
VP160v4
EP350
EP500

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#400098 - 01/15/14 10:11 AM Re: Ok so another sub question how many [Re: Argon]
nickbuol Offline
axiomite

Registered: 09/16/04
Posts: 5324
Loc: Marion, IA
Originally Posted By: Argon
I am guessing that you are looking for that satisfying ummmph the movie creators feed to good subs. IF that is the case, go with the 600 or the two 500s.


Unless his seat is in a null location and then he gets nothing. Doh.

OK. That is solved for the most part by the "Subwoofer Crawl" and such for best placement, but just sayin'....

I was a very happy, single-subwoofer person for 9 years. Then I added a second matching sub, and not only can have louder bass, but it has smoother response in the room, and I nearly reduced all overpowering peaks and the "non-existant despite a large powerful sub" nulls.

So watch placement if going with a big beast and you will probably be OK.

I will leave you all with the following information. This is NOT my information, but my gathering of numbers and notes from real industry experts. I used these notes for my final tweaking and such, and for future notes (so that I don't have to find this again.) Note the subwoofer section.

------------------------------------------
SEAT LOCATIONS:

To avoid harmonic peaks and nulls in the room, seats should be placed at one (or more) of the following locations.

WIDTH:

.20, .32, .45, .55, .68, .80 of the width of the room

LENGTH:

.55, .68, .80 of the length of the room (away from the front solid wall)



FRONT SPEAKER IMAGING:

Locate the front left and right speakers and the center of the main seating such that it forms a 45* angle.

Do NOT sacrifice the above seat location calculations.

A 45 degree angle gives good sound imaging.

Toe-in of front left and right speakers helps since most speakers perform better that way with mid & high frequency dispersion.

(I had a graphic here that just showed an ideal angle of 45 degrees when measuring the angle of the width of the front R and L speakers from the main seat.)

Like tow-in of the left and right, aim your center speaker, up or down, so that it points towards ear level in the listening area.

Below screen is better than above screen for center channel imaging.

It usually is closer to ear height.

Height of front speakers should be around 40” from your desired measurement point of the tweeter, midrange, or somewhere in-between.

Do NOT put the center channel more than 2 feet above or below the front left/right speakers if at all possible.



SUBWOOFERS:

Standing waves are a big issue with low frequencies.

To eliminate as many standing waves as possible, you need 4 subs.

Place 1 in each corner, or 1 in the middle of each of the four walls.

If you can’t do 4 (10”) subs, do two (12”) subs with one in the middle of each of the front and rear walls, or the middle of each of the side walls.

One large 18” sub < four 10” subs
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#400105 - 01/15/14 03:10 PM Re: Ok so another sub question how many [Re: nickbuol]
TroyD Offline
aficionado

Registered: 02/17/04
Posts: 602
Loc: Bridgewater, Nova Scotia, CA
I sit 11' from the front
5'6" centre from the sides walls.
The seating is a three movie style seating, I am in the middle
My imaginary friends are on the left and right

the rear wall being constructed is 5'6" behind and I am 5'.9" behind where the QS8's will go.

I am now running co-axial cabling for the subs.

two runs up front, two runs to the rear wall and three on each side wall in increments of 6'

So two subs I can pretty well put them anywhere, but I really, really don't want a two ft sub jutted out into the middle of the room.
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Anthem AVM30
Anthem MCA50
M22v4
VP160v4
EP350
EP500

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#400106 - 01/15/14 03:17 PM Re: Ok so another sub question how many [Re: TroyD]
TroyD Offline
aficionado

Registered: 02/17/04
Posts: 602
Loc: Bridgewater, Nova Scotia, CA
and 4 8" sub are greater than a 15"
wink

Thanks NickBuol
_________________________
Anthem AVM30
Anthem MCA50
M22v4
VP160v4
EP350
EP500

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