mono vs Stereo for subs

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racer427

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Posted: August 18, 2004 at 5:23 PM / IP Logged

Hey guy's,

When running subs, I am told that running them mono is the best way. Why? Some or most music is recorded in a stereo type format (or at least I think so) so, if you have a good enough amp to drive the subs is stereo wouldn't it be better. I listen to alot of music that incorporates double base and I would think that having the subs working independently might sound better? Your thoughts on this issue please?

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racer427

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Posted: August 18, 2004 at 6:05 PM / IP Logged

That is BASS guy's Not BASE. I hate not being able to edit my posts.

Alpine CDA-9833 HU

Diamond Audio M661 Components

MTX Thunder T6.6 Components:rear fill:

Cadence Q400 4 Channel Mains + rears

Thunder 801D Subs

MTX 1004 10's

Dual 4g wire to rear

4g grounds

DYohn

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Posted: August 18, 2004 at 6:21 PM / IP Logged

Low frequencies below about 80Hz are not directional (actually, some people say sounds down to about 65Hz can be located but 80Hz is the THX standard) so you need only one loudspeaker to produce all the energy in the lowest bands of any recording. If it is not directional (meaning you can't tell where the sound is coming from except sometimes in a very general way) then there is no advantage to being in stereo. Since you only need one speaker, a mono amp makes the most sense. Using stereo amps is simply a hook-up flexibility option.

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customsuburb

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Posted: August 18, 2004 at 6:27 PM / IP Logged

The edit button is to the right of the +buddy link below your post.

racer427

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Posted: August 18, 2004 at 6:33 PM / IP Logged

I understand frequency direction as I have been doing Home threater for sometime and have quite a system built up here.

I guess the issue that I was trying to address or the question that I was asking relates to the fact of the subs being able to hand fast pulses such as Double Bass riffs. Mine seem to hit a tad slow. Maybe twelves are just not for my type of music. Ten's would respone to fast pulse's much better and much tighter, right?

Alpine CDA-9833 HU

Diamond Audio M661 Components

MTX Thunder T6.6 Components:rear fill:

Cadence Q400 4 Channel Mains + rears

Thunder 801D Subs

MTX 1004 10's

Dual 4g wire to rear

4g grounds

auex

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Posted: August 18, 2004 at 6:35 PM / IP Logged

customsuburb wrote:

The edit button is to the right of the +buddy link below your post. <IMG alt="Edit Post" src="https://www.the12volt.com/installbay/forum_images/edit_post_icon.gif" align=absMiddle>

He is a newb and cannot edit yet.

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Posted: August 18, 2004 at 6:59 PM / IP Logged

racer427 wrote:

Actually mass doesn't effect the transient response of the driver, inductance does.

But what you are hearing can be caused by several different things. It could be caused by your sub having too much low end (unlikely, but possible), or you have a dip in the midbass response which cuts out the harmonics of the kick drum. Or it could be that the driver is producing too much distortion or the inductance is too high like mentioned above.

Steven Kephart

Adire Audio

racer427

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Location: United States

Posted: August 18, 2004 at 7:11 PM / IP Logged

Maybe it has to do with the subs themselves. They are an older model Rockford 1812. Cheaper line I think. I bought the whole setup from my neighbor including the head unit and the amp for $250.

There could be 2 possable problems.

1 Cheap subs?

2 Rockford Punch 120.2 wired mono at 2 ohms I think pushing 140 watts to the subs? Underdriven?

Alpine CDA-9833 HU

Diamond Audio M661 Components

MTX Thunder T6.6 Components:rear fill:

Cadence Q400 4 Channel Mains + rears

Thunder 801D Subs

MTX 1004 10's

Dual 4g wire to rear

4g grounds

racer427

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Joined: August 04, 2004

Location: United States

Posted: August 18, 2004 at 7:36 PM / IP Logged

And, I was always told in the past that 10's high harder and fast due to the fact that they have less mass to move. Can that even be a little true?

Alpine CDA-9833 HU

Diamond Audio M661 Components

MTX Thunder T6.6 Components:rear fill:

Cadence Q400 4 Channel Mains + rears

Thunder 801D Subs

MTX 1004 10's

Dual 4g wire to rear

4g grounds

Steven Kephart

Platinum - Posts: 1,737

Joined: November 06, 2003

Location: Oregon, United States

Posted: August 18, 2004 at 8:11 PM / IP Logged

racer427 wrote:

And, I was always told in the past that 10's high harder and fast due to the fact that they have less mass to move. Can that even be a little true?

That is a common misconception. The problem comes from where people don't fully understand how a speaker works. They think of it two dimentionally instead of three dimentionally. If you want a good technical paper discussing this idea, read the following: http://www.adireaudio.com/Files/TechPapers/WooferSpeed.pdf

Steven Kephart

Adire Audio

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