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Little Sub-Woofers

Howard Traxler <howard@...>
 

Does anyone know exactly how they get *SO* much bass out of those little sub-woofers; I mean the real small ones that havve maybe a five or six inch speaker in them?  I've seen Altec Lansing and Logitek three-ways that really boom out that sub-woofing sound.  I never took one apart so I don't have any idea what's in there that does that?


Howard

Steve Jacobson
 

Howard,

There are a couple of ways that companies are getting more out of small subwoofers. Probably the biggest thing is that they can partly make up for the lack of efficiency of smaller cones and cabinets by electronically equalizing the signal and by including higher power internal power amplification. Also, sometimes speaker cones are used that can move further than they used to. This means they can be driven harder. Some of the smaller subwoofers really do an amazing job. I have heard a couple, though, that do well at deep base but sometimes tend to "double", where low bass notes have their harmonics produced more than on the larger subwoofers. Therefore, one needs to listen carefully to be sure you are getting what you want.

Best regards,

Steve Jacobson

-----Original Message-----
From: all-audio@groups.io <all-audio@groups.io> On Behalf Of Howard Traxler
Sent: Saturday, June 29, 2019 5:27 PM
To: all-audio@groups.io
Subject: [all-audio] Little Sub-Woofers

Does anyone know exactly how they get *SO* much bass out of those little
sub-woofers; I mean the real small ones that havve maybe a five or six
inch speaker in them?  I've seen Altec Lansing and Logitek three-ways
that really boom out that sub-woofing sound.  I never took one apart so
I don't have any idea what's in there that does that?


Howard

Howard Traxler <howard@...>
 

Seems you could be right:  smaller cones to make further excursion could produce greater sound pressure and low frequencies.  I have not taken one of these apart so don't know about construction.  Wonder it they are ported or non-ported. Wonder if one can purchase speakers of this type to build home made speaker systems.  I still like my 15 inch woofers in large cabinets best; and using high-powered amplifier.

Howard

On 6/30/2019 12:37 PM, Steve Jacobson wrote:
Howard,

There are a couple of ways that companies are getting more out of small subwoofers. Probably the biggest thing is that they can partly make up for the lack of efficiency of smaller cones and cabinets by electronically equalizing the signal and by including higher power internal power amplification. Also, sometimes speaker cones are used that can move further than they used to. This means they can be driven harder. Some of the smaller subwoofers really do an amazing job. I have heard a couple, though, that do well at deep base but sometimes tend to "double", where low bass notes have their harmonics produced more than on the larger subwoofers. Therefore, one needs to listen carefully to be sure you are getting what you want.

Best regards,

Steve Jacobson

-----Original Message-----
From: all-audio@groups.io <all-audio@groups.io> On Behalf Of Howard Traxler
Sent: Saturday, June 29, 2019 5:27 PM
To: all-audio@groups.io
Subject: [all-audio] Little Sub-Woofers

Does anyone know exactly how they get *SO* much bass out of those little
sub-woofers; I mean the real small ones that havve maybe a five or six
inch speaker in them?  I've seen Altec Lansing and Logitek three-ways
that really boom out that sub-woofing sound.  I never took one apart so
I don't have any idea what's in there that does that?


Howard