Get Free, Friendly, Expert Advice
Call 1-866-244-8796 or email

Designed and Manufactured in Canada Since 1980


AxiomAudio Blog

Outdoor Speaker Placement

Speaker Placement: Unusual Room Layouts and Elevating Speakers

Positioning Floorstanding Speakers

Wall'O'Fame
Greetings fellow Axiom owners...
HG Rosewoods Part 3
Who's Online
3 registered (JohnK, oakvillematt, FrankeeD), 118 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Financing
Forum Stats
13295 Members
11 Forums
22822 Topics
403186 Posts

Max Online: 378 @ 02/24/13 04:33 PM
Top Posters
Ken.C 17739
pmbuko 16258
SirQuack 13318
CV 11136
MarkSJohnson 10830
Meanwhile On Facebook

Hope everyone's got their summer favourite playlists cued up for the weekend! W...

(y) Love this customer review of the M2s! "the first time listening to my new a...

These LFR1100 speakers in custom Eggshell White are on their way to Taiwan (yes,...

Friday the 13th . . . oooooh! Who's your favorite Slasher flick character?

Topic Options
Rate This Topic
#138517 - 05/15/06 06:04 PM Two subs.
komori8c Offline
frequent flier

Registered: 12/04/05
Posts: 18
What is the best way to callibrate two subs?
Would it be one at a time or both together?
I have the callibration disc and the SPL meter.
The speakers in question would be an EP500 feeding
into a Polk PWS450. I'm not using a Y connector, just
line out/line in.
Thanks'
Ken.


Top
#138518 - 05/15/06 06:08 PM Re: Two subs.
BrenR Offline
connoisseur

Registered: 12/10/03
Posts: 3602
Loc: Winnipeg MB Canada
That was a TERRIBLE Haiku!

Bren R.

Top
#138519 - 05/15/06 06:15 PM Re: Two subs.
komori8c Offline
frequent flier

Registered: 12/04/05
Posts: 18
I must have missed that day in Haiku class.

Top
#138520 - 05/15/06 09:03 PM Re: Two subs.
St_PatGuy Offline
axiomite

Registered: 03/07/05
Posts: 7395
Loc: Glendale, Arizona
Bren, I almost had to buy a new keyboard. Since I stll had the cup to my mouth I got a backblast of coffee all over my glasses, instead.

Thanks.

_________________________
***********
"Nothin' up my sleeve. . ." --Bullwinkle J. Moose

Top
#138521 - 05/15/06 09:06 PM Re: Two subs.
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16258
Loc: Leesburg, Virginia
If you are co-locating your subs -- putting them both next to each other -- then it's best to calibrate them together. But you should also calibrate them separately first. What I mean by that is that each should play equally loud. The ensure this, hook one up individually, send it a test tone, and measure the output with an SPL meter. Use the sub's volume dial to get it about 6dB lower than you want the final calibrated level to be. E.g. if you want your final sub level to be 85dB, set it to 79dB. Do the same for the second sub, adjusting its output to match the first, again using the sub's own volume dial

Now that both subs are playing equally loud, connect them both to your receiver and pretend they're just one sub, using only the level adjustments provided by the receiver.

Of course, you may find that the subs sound better together if the EP500 plays a little louder than the PWS450, or the other way around. Aren't variables great?
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

Top
#138522 - 05/16/06 12:14 AM Re: Two subs.
INANE Offline
connoisseur

Registered: 02/04/04
Posts: 1660
Loc: Omaha, Nebraska
I've been playing around with placement and calibration of my 2 DIY subs... heh its an ongoing process. I've currently gotten the placement so the majority of the viewing area gets either the output of one of the subs or the combination of the two but one side of the viewing area gets a nasty cancelation of the bass to the point you can barely tell they are on. Very frustrating. I'm too poor to buy a EP500 (or HSU/SVS for that matter) so I continue down the tweaking path.
_________________________
-Ben
HT v2.0 !
HT v1.0

Top
#138523 - 05/18/06 02:37 AM Re: Two subs.
MiniRock Offline
devotee

Registered: 10/12/03
Posts: 494
Loc: Napavine, WA
In reply to:

What is the best way to callibrate two subs?
Would it be one at a time or both together?
I have the callibration disc and the SPL meter.
The speakers in question would be an EP500 feeding
into a Polk PWS450. I'm not using a Y connector, just
line out/line in.
Thanks'
Ken.




Hi Ken. Personally, I would stack the two in a corner (PSW450 on top of the EP500) and set the PSW at the 12 o'clock position and the EP500 to the 9-10 o'clock position. Next, calibrate with reference disc test tones (most likely 75db). By stacking the two in the corner, you should get about a 6db boost. I did this in the past with two M&K MX350 subs (as suggested by Ken of M&K) and it's much more smooth and deeper base. Good luck, and let us know how it turns out.
_________________________
Mini Rock's Lounge.com

Top



Moderator:  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Home  |  Corporate Info  |  Products  |  Message Board  |  FAQs  |  Warranty  |  Site Map  |  Privacy Statement   |  Contact Us

©2014 Colquhoun Audio Laboratories Limited
All Rights Reserved.