18sound kit 18 sub

Today I had another test run.

Much happier now :-)

Forgot my test mic but let my ears decide.

Started with no highpass and 80Hz lowpass 24dB.

At mid volume they sounded quite nice and after an hour or so we started to mix the filters.

At 25 hz 12/18/24/48 dB and to be true, did not hear much difference!

So 48dB we choose and started to ad eq as the plan said, but 6dB at 30Hz was way to much! I think that you get a "knee" the stepper filter you get or something so 3dB sounded nice at dubstep.

Super happy over that, lowpass was at test.

18sound wrote that 120hz would be good, but sounded baaaad.
100Hz 24dB and eq -3dB at 90Hz made the kick clean and not muddy. Maybe not the best but sounded good with rock and pop.

Result, deeeep and work with eurodance, pop and dubstep. Could play every tone at same force.

Really nice cab! Must have been placement in the room before or the eq.

So now I have to build 3 more:-)

It sounds as you are becoming addicted to low bass. Now you see why many choose reflex cabinets.

Best Regards,

I high-pass mine at 10 Hz, 6 dB per octave. As you become more familiar with drivers designed for reflex cabinets, you will realise the most popular drivers are not the best choice for a reflex bin especially when you are building large cabinets.

Best Regards,     

It really depends on the cabinet size. The G Sub’s outer dimension is equivalent to my Double Fifteen cabinets, which are smaller than the outer dimensions of my Double Eighteens cabinets. My Double Eighteens cabinets are smaller than my Double Twenty-Ones cabinets. Woofers that require a large box will offer more SPL below 50 Hz, providing you design a box large enough to make it possible.

There is really no need to mimic the plans offered by B&C unless you are planning to use the woofers recommended by B&C. Since I created my own designs from ground up, my designs give me what I want and not what a manufacture feels is appropriate. You are not an intermediate designer so there is no need to settle for pre-made designs when you have the capability to create your own design based on your requirements.

Scale your own dimensions with various drivers in Bass Box Pro to determine which driver will give you 35 Hz flat since that is what you are aiming for.

Best Regards,

Elliot Thompson wrote: It really depends on the cabinet size. The G Sub’s outer dimension is equivalent to my Double Fifteen cabinets, which are smaller than the outer dimensions of my Double Eighteens cabinets. My Double Eighteens cabinets are smaller than my Double Twenty-Ones cabinets. Woofers that require a large box will offer more SPL below 50 Hz, providing you design a box large enough to make it possible. There is really no need to mimic the plans offered by B&C unless you are planning to use the woofers recommended by B&C. Since I created my own designs from ground up, my designs give me what I want and not what a manufacture feels is appropriate. You are not an intermediate designer so there is no need to settle for pre-made designs when you have the capability to create your own design based on your requirements. Scale your own dimensions with various drivers in Bass Box Pro to determine which driver will give you 35 Hz flat since that is what you are aiming for. Best Regards,

Thank's for your advice! A little bit more confident now :-)

Yesterday we loaded the cab and did a test by our ears.
The bigger one did go lower and with a little bit more spl under 50hz.
The 18sound cab had more spl over 50hz and sounded more musical
and punchier at music. The bigger one had bigger cone movement too.

Really don't know yet wich cab I perfer yet. More testing to do :-)