And if lower the inductance variaton Le(x), I suspect.
But for example a SS 26W/4558 driver still can't do "proper" chest kick/feel, despite its low inductance. But of course, high IMD can also be caused by other reasons than high inductance, I suspect.
https://www.dibirama.it/home-page/s...26w-4558t00-sub-woofer-10-4-ohm-350-wmax.html
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Looking at all these discussions, I have a question. Has the chesty kick thingy become really difficult to achieve and find these days?
Back in the early 90s, there were a couple of reggae sound systems running in Sydney. Lion Soundsystem was more DJ/Dancehall and Massive Soundsystem was more off a huge Dub/raggamuffin type. Neither struggled with delivering a hefty kick
I have a home studio drum set that I modded to the classic Dub short and dry kick for the kick drum. This meant seriously shortening the 28" shell to 13" and stuffing. It sends a non-booming THUP right through your chest. While messing with the stuffing and skin damping, I noticed that boom got in the way of a hefty chest kick. I have a fabric backed original batter skin on this two-tone lacquered set from the 80s. Stuffing was Dacron. No additional stickers/tape on the skins
Same with the 12W7 driver in the 35hz ported box. The kicks in the dub are driven through the chest. Explored this today a bit. Leaning out of the seat, walking around the car, walking into the amenities block and cubicle. The W7 kicks hard, but this type of kick is present in the recording at a very spiking signal in the mix. Loading the songs into the DJ software or Audacity shows the kicks as hard peaks
Back in the early 90s, there were a couple of reggae sound systems running in Sydney. Lion Soundsystem was more DJ/Dancehall and Massive Soundsystem was more off a huge Dub/raggamuffin type. Neither struggled with delivering a hefty kick
I have a home studio drum set that I modded to the classic Dub short and dry kick for the kick drum. This meant seriously shortening the 28" shell to 13" and stuffing. It sends a non-booming THUP right through your chest. While messing with the stuffing and skin damping, I noticed that boom got in the way of a hefty chest kick. I have a fabric backed original batter skin on this two-tone lacquered set from the 80s. Stuffing was Dacron. No additional stickers/tape on the skins
Same with the 12W7 driver in the 35hz ported box. The kicks in the dub are driven through the chest. Explored this today a bit. Leaning out of the seat, walking around the car, walking into the amenities block and cubicle. The W7 kicks hard, but this type of kick is present in the recording at a very spiking signal in the mix. Loading the songs into the DJ software or Audacity shows the kicks as hard peaks
I found the drums in general (including the kick) in this song always stood out, especially for the 90's where a good drum sound was not common...
Reggae soundsystems at that time (and still) are playing with a 4 way system with a dedicated "kickbox" that covers the 95-350Hz traditionally, and a dedicated sub box that covers 95-32hz (mostly a scoop horn). That seperation of the upper and low bass frequencies helps to make the attack of the kick strong while also haveing the low energy of the subs still present.
Dancehall and dub still played on the same kind of installations in that time, int's only arround the turn of the century that both styles also started to use different hardware. I was there and active in both scenes since 1996 (but in Belgium, Europe). The scene was also still very mixed, while now the roots/dub and dancehall scene are very seperated scenes.
It sure as hell is when you’re going out of your way to make everything small. Separate subs and kicks (aka low mids), both horn loaded and with capable drivers, can kick like mules and produce earthquakes at the same time. When properly time aligned. But that doesn’t exactly make a compact system.
or just your average reggae sound system. They got a few (open plan) standards for that, like the W-bin or the HD15 horn that are used a lot, and a lot of custom designs. This is an old trick that was also used by Function One or Turbomax.
A very long thread about some non existing problem. The first post has a huge mistake, as it compares a car audio system to a home HIFI installation.
The car interior, from some frequency down, is a pressure chamber. It has completely different rules than a room in a house.
A simple test will show you that the "chest thump" is completely gone if you open the doors of the car. So for best results, doors and windows have to be closed. To a very small extend you can experience this in a room, too. If it got doors and windows you can open, try it. Quite some low down grunt will be gone.
If you have the right speakers in your home, you can have as much chest thump as you like. In my party setup I got two Electro-Voice W-bins. Combined with the horn top they hit you quite hard if it is included in the recording. People who don't expect something like this can get a severe fright. In fact pretty funny...
So no mysterious advantgae of low cost car woofers or the like. Simple physics like anything about loudspeakers.
The car interior, from some frequency down, is a pressure chamber. It has completely different rules than a room in a house.
A simple test will show you that the "chest thump" is completely gone if you open the doors of the car. So for best results, doors and windows have to be closed. To a very small extend you can experience this in a room, too. If it got doors and windows you can open, try it. Quite some low down grunt will be gone.
If you have the right speakers in your home, you can have as much chest thump as you like. In my party setup I got two Electro-Voice W-bins. Combined with the horn top they hit you quite hard if it is included in the recording. People who don't expect something like this can get a severe fright. In fact pretty funny...
So no mysterious advantgae of low cost car woofers or the like. Simple physics like anything about loudspeakers.
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This is true, and my point is that the correct type of kick signature is there in the material to be reproduced, too. The dry short kick with bags of attack is present in all forms of reggae past and current. Most of my current 'raw' dancehall playlist has such a kick, as does most of Sly Dunbar's historical and inspired work present in most of the dubs
This is generally true too, but smaller setups at home can kick hard too if done with such goals. Take a look at the JBL BB3 and larger. These kick hard. I can feel the kick from the larger TWS dual cab model in the semi auditorium like steps at our Torquay beach. Have the OEM replacement racer driver from the BB3 up on a stand in free air about a meter from my chest, and it has no probs sending a dub kick right through my chest with the volume high
Powercuts club with the Lion Soundsystem had the kick bins on top of bandpass subs in the corners. Very small venue under the Agincourt Hotel in Sydney City back in the early 90s. One pair of the stack was sufficient for the kick, but I found the bass had to be turned down for clean basslines otherwise distorted too much. For a venue and crowd that size, my current JL W7 sub would have let me turn the volume up. Btw, this is in my car since the driver was released back in the day. I do have 'kick bins' in my front doors and 3" FR drivers in the factory tweeter location on the dash. Fairly easy to get the chesty kick setup in the car
Indeed, difficult in home setups but a near field type setup for kick can work here too
Okay, so you are talking about effects of inductance that are not related to the stimulus, but rather the internal operation of the driver. Because inductance will limit the passband of the input signal, the impulse response would of course be "slower". But even despite all that, lower inductance generates less distortion?
A couple of questions. Are you sure it's the inductance and not some other thing, like resistance? Have you tried to compensate the inductance of the woofer with another device?