Author Topic: using two subwoofers (Read 6634 times)

threadlock · « **Reply #30 on:** Feb 09, 2009 at 06:59 PM »

Quote from: -sniper- on Feb 09, 2009 at 05:42 PM

finally tested (and abused) the dual sub set-up. a bit tiring though.

i did three separate auto calibrations -- first, auto calibrated with my old sub connected. second, i repeated the process connecting the second sub and disconnecting the old sub. after the two auto calibrations, i then connected both subs. i did not turn off the power on both subs. was thinking that doing so might delete the auto-calibraton settings. i played several movies using the same track -- one with both subs on, then with new sub at zero volume, then with the same sub disconnected from the avr. i did the same thing with the old sub. (i had to run the same track for five times )

the third auto calibration was simpler -- i had both subwoofers connected.

the results were the same -- the settings, the boom, the rumbling, the shakes.

bottomline -- i like the dual sub set-up (oh no! ). the subs were both placed in front.

i was thinking of placing one sub beside the right surround, facing the other surround speaker (and not towards the front). any thoughts on this placement?

It may result to making the nearfield sub easy to localize. Well, it really depends on your sub, if it plays without noticeable distortion, without port noise, and other noise that may come from the sub, nearfield is a good placement for that chest-thumping effect.

blued888 · « **Reply #31 on:** Feb 09, 2009 at 07:52 PM »

Quote from: jackryan on Feb 09, 2009 at 06:17 PM

why not put those bass shakers or buttkickers too?

Meron ako niyang bass shakers na yan pero haven't gotten the time to mount them. Kailangan kasi may bubutasan or i-s-screw ka. Ayan tuloy nakatambak lang sa box. The Aura Pros go for 3k/pair.

Plus kailangan mo ng additional amplifier to power them up which would cost you an additional 2.5k to 4k.

-sniper- · « **Reply #32 on:** Feb 10, 2009 at 09:49 AM »

Quote from: blued888 on Feb 09, 2009 at 06:02 PM

Placing the subwoofer nearfield would allow you to feel more of the midbass, hence more chest-thumping feeling.

does this mean it's a good idea?

Quote from: jackryan on Feb 09, 2009 at 06:17 PM

why not put those bass shakers or buttkickers too?

added expense eh...

Quote from: blued888 on Feb 09, 2009 at 07:52 PM

Meron ako niyang bass shakers na yan pero haven't gotten the time to mount them. Kailangan kasi may bubutasan or i-s-screw ka. Ayan tuloy nakatambak lang sa box. The Aura Pros go for 3k/pair.

Plus kailangan mo ng additional amplifier to power them up which would cost you an additional 2.5k to 4k.

bingo!

blued888 · « **Reply #33 on:** Feb 10, 2009 at 10:42 AM »

Quote from: -sniper- on Feb 10, 2009 at 09:49 AM

does this mean it's a good idea?

Depends if you prefer the chest-thumping.

You can try it temporarily if you have a long subwoofer cable that would allow you to place it near the seating area.

MercedesBMW · « **Reply #34 on:** Feb 26, 2009 at 02:10 AM »

couldnt understand why two subwoofer when bass is monaural in nature.

streetsmart · « **Reply #35 on:** Feb 26, 2009 at 11:57 AM »

Quote from: MercedesBMW on Feb 26, 2009 at 02:10 AM

couldnt understand why two subwoofer when bass is monaural in nature.

Two main reasons:

1. If the room is big, one sub (even a very big one) may not be sufficient.

2. If the 2 subs are properly located, they will produce a much flatter frequency response than just one sub. If you have 4 subs, you can get an even smoother bass.

-sniper- · « **Reply #36 on:** Mar 04, 2009 at 02:07 PM »

this might be an OT question. i've mentioned about using the auto calibration feature of my avr for setting up the two subs.

my question is where would be the ideal place for me to place the mic to get the best results? not just for the two subs but for the entire system. i usually place the mic between the center speaker and the listening position.

thanks.

stickfighter · « **Reply #37 on:** Mar 10, 2009 at 10:09 PM »

Quote from: -sniper- on Mar 04, 2009 at 02:07 PM

this might be an OT question. i've mentioned about using the auto calibration feature of my avr for setting up the two subs.

my question is where would be the ideal place for me to place the mic to get the best results? not just for the two subs but for the entire system. i usually place the mic between the center speaker and the listening position.

thanks.

I have a Denon AVR, normally, when I perform the auto calibration, it is recommended that you position the mic in the listening position first and then, 5 positions around the listening position. 6 strategic positions all in all.

-sniper- · « **Reply #38 on:** Mar 11, 2009 at 11:43 AM »

Quote from: stickfighter on Mar 10, 2009 at 10:09 PM

I have a Denon AVR, normally, when I perform the auto calibration, it is recommended that you position the mic in the listening position first and then, 5 positions around the listening position. 6 strategic positions all in all.

does this mean i have to perform auto-calibration six times?

markcrenz · « **Reply #39 on:** Mar 11, 2009 at 01:55 PM »

Quote from: -sniper- on Mar 11, 2009 at 11:43 AM

does this mean i have to perform auto-calibration six times?

Probably up to eight (or 32) times for best results. Audyssey-enabled products can use the MultiEQ to up to 8 (32 in the Pro version) positions.

http://www.audyssey.com/technology/index.html

JayR1129 · « **Reply #40 on:** Jul 15, 2009 at 05:21 PM »

Help nman po.. ano po ba best connection for using 2 subs?

1. amp --> sub1 (line in) --> sub1 (line out) --> sub2 (line in)

Or
Sub1 (line in)
2. amp Y
Sub2 (line in)

Thanks.....

mike c · « **Reply #41 on:** Jul 15, 2009 at 05:22 PM »

Quote from: JayR1129 on Jul 15, 2009 at 05:21 PM

Help nman po.. ano po ba best connection for using 2 subs?

1. amp --> sub1 (line in) --> sub1 (line out) --> sub2 (line in)

Or
Sub1 (line in)
2. amp Y
Sub2 (line in)

Thanks.....

Y splitter would be the better option

JayR1129 · « **Reply #42 on:** Jul 15, 2009 at 05:39 PM »

Quote from: mike c on Jul 15, 2009 at 05:22 PM

Y splitter would be the better option

Thank you sir Mike C for your prompt reply.. will try it later..

Huddaf · « **Reply #43 on:** Jul 16, 2009 at 06:14 AM »

Quote from: mike c on Jul 15, 2009 at 05:22 PM

Y splitter would be the better option

Sir Mike, may i ask why? Does it mean that the signal being thrown by the 1st sub is different from the source?

markcrenz · « **Reply #44 on:** Jul 16, 2009 at 09:58 AM »

Quote from: mike c on Jul 15, 2009 at 05:22 PM

Y splitter would be the better option

+1 (for flexibility)

mike c · « **Reply #45 on:** Jul 16, 2009 at 10:01 AM »

Quote from: Huddaf on Jul 16, 2009 at 06:14 AM

Sir Mike, may i ask why? Does it mean that the signal being thrown by the 1st sub is different from the source?

sure

no.1 reason would be para sure tayo na pantay ang signal sent to both subwoofers

no.2 reason, as you guessed ... it's very likely hindi pantay ang output signal ng 1st subwoofer sa 2nd subwoofer
(this can easily be solved by turning off each sub and calibrating - though you also need to this with the other option, iwas unknown variables lang tayo

)

jerix · « **Reply #46 on:** Jul 16, 2009 at 04:02 PM »

I have two subs now and my problem is locating them properly and benefit from it without moving so many things inside the house. In my quest for the best placement, my other sub landed in a place where i have to move so many things, so i just returned it to its original location and maybe try to test other places later.

Huddaf · « **Reply #47 on:** Jul 18, 2009 at 01:46 PM »

Quote from: mike c on Jul 16, 2009 at 10:01 AM

sure

no.1 reason would be para sure tayo na pantay ang signal sent to both subwoofers

no.2 reason, as you guessed ... it's very likely hindi pantay ang output signal ng 1st subwoofer sa 2nd subwoofer
(this can easily be solved by turning off each sub and calibrating - though you also need to this with the other option, iwas unknown variables lang tayo )

Hmmm, ok. Because i was using dual sub. Already experimented with both setup. I should revert back to the Y-splitter thing. Thanks!

piggyback · « **Reply #48 on:** Jul 29, 2009 at 07:09 PM »

where can i buy a Y-splitter, as i am using 2 identical powered subs? thanks in advance

sub cable used: belden rg6 with amphenol rca connector

iiinas · « **Reply #49 on:** Jul 29, 2009 at 08:34 PM »

Quote from: piggyback on Jul 29, 2009 at 07:09 PM

where can i buy a Y-splitter, as i am using 2 identical powered subs? thanks in advance

sub cable used: belden rg6 with amphenol rca connector

this is the cheap version, it can be found usually on the cable section of some branches of handy man and ace hardware. i think i might have seen this in some cdr king branches too.

better and more expensive version, i think our favorite a/v stores usually has them.

but please remember these are not the exact kind of y-splitter, you may encounter other kind, like different thickness of cable, different quality of the plug and even color. goodluck.

berdilot™ · « **Reply #50 on:** Aug 05, 2009 at 10:17 AM »

haha, nice idea yun. thumpin' all the way.