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Old 12th September 2012, 03:27 AM   #101
TerryO is offline TerryO  United States
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Quote:
Originally Posted by Pano View Post
Well there is Bass and there is Deep Bass. Most punch and iron first in the the mid-bass. But it's still bass.
Pano,

There are many speaker designers that tune smaller speakers to have a couple of dBs of extra boost at the bottom to create the illusion of deeper bass than the speaker can actually produce. This emphasis of the higher harmonics are often mistaken for the missing fundamental bass note. It's been a trick in the designer's kit for decades.

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Old 12th September 2012, 03:27 AM   #102
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Im not talking about deep bass if deep bass I would rather go with 21 inch drivers or a good Bag end infrasub 18.
Pano you are right it will have that tight hit at the lower bass region but ends in the bass region. So here the midbass region will be tighter but the bass region it looses control but I believe I got the equations here..

I dont listen to the levels beyond 110db which I feel is pretty high for normal use. I am really not thinking of deep bass. If its deep bass I would talk only in the region less than 60Hz to down 4Hz or so... and we talk more spl at sub sonic frequencies..

I still think we need that super massive toroidal to do the job.
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Old 12th September 2012, 04:40 AM   #103
BudP is offline BudP  United States
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Well, if you think out of the box. You could go looking for a 1.5 kva medical data isolation transformer. Have it wound to provide your rails for the amplifier and add a 120 volt winding, isolated from the rest for system power. This will knock your noise floor down for the whole system and provide amplifier power too. You aren't going to run out of electrons....

Bud
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Old 12th September 2012, 04:40 AM   #104
fas42 is offline fas42  Australia
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Originally Posted by rhythmsandy View Post
I still think we need that super massive toroidal to do the job.
You're right ... if nothing else is altered, and you can afford it, this is an 'easy' way to improve what we're talking about here ...

Frank
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Old 12th September 2012, 05:05 AM   #105
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If you look at it you don't really need anything like that because in this region the driver is transferring most of its energy to the Helmholtz resonator and has a high electrical impedance. If you are using an L-T with substantial power input bellow resonance that is a different matter.
rcw
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Old 12th September 2012, 05:09 AM   #106
TerryO is offline TerryO  United States
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You're right ... if nothing else is altered, and you can afford it, this is an 'easy' way to improve what we're talking about here ...

Frank
I'd go with Bud's idea first!
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Old 12th September 2012, 05:13 AM   #107
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Sorry for coming in late. Am just repeating what has been said.
1. The amplifier must have an iron grip on that woofer
2. Crossover the woofer at 300 Hz and below
3. The woofer must be well designed
4. The environment must support the production of bass

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Old 12th September 2012, 05:46 AM   #108
TerryO is offline TerryO  United States
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That first factor sounds like Julian Hirsch in 1976. I'm sorry, but the "Iron Grip of Control" is long gone. It was a flawed idea back then and yet, once in a while, some hermit wanders in from the desert and starts muttering it all over again.
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Old 12th September 2012, 09:02 AM   #109
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by rhythmsandy View Post
I was not looking for thumping bass but tight bass. Even if I use 40 watts the bass has to be tight not loose.. i think you got it. For domestic use I know there is no point to use dual 15 inch bass. Im not looking for that kind of loose 15 inch drives generally do.

let me explain what kind of bass would be better for me I would rather prefer 4 x 8 inch drivers for tightness instead of two 10 inch... hope you got what im looking for...
This reply is completely without foundation.

You seem to misunderstand all the fundamentals of audio signal reproduction.
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Old 12th September 2012, 09:10 AM   #110
AndrewT is offline AndrewT  Scotland
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Originally Posted by lduarte1973 View Post
i never use any kind of bass boost on my bass amp or equalizer , always flat that´s how it sounds correct to me
yes, the musians and the producer sit together and listen to the mix. They tweak and slide until they hear what they want us to hear.
I consider it my responsibility to listen to what they (as a team) give me. No response anomalies and certainly no bass boost. No EQing filters to twist the response up/down/around.
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