Is the SS RL-P18 really that much more of a woofer than the Ficar?

The end result is they both get the job done. In your modeling also compare how much power to reach maximum excursion and the spl output. That's where you'll find some of the differences between subwoofers.

 

They are both quite comparable with the SS a bit more sexy. But if you will end up with something like what's in my Avatar, it might not make too much of a difference :R

 

Thanks guys for the help!! Contacted SS and they don't have any in stock due to the Bankruptcy. So, I guess it comes down to the Mal-X or the Ficar. The Ficar requires a much larger box but it models better. Guess I will wait and see what the verdict is on the Mal-X.

Matt

 

If you're looking for a smaller enclosure, model the Mach5 IXL-18 in 350 liters tuned to 15 hz. It does well.

 

Mike,

That's true but the tricky part of it would be to install a 42.5 " long port in such an enclosure :scratchhead:

 

Three 4 inch flared ports 36 inches long would tune it to 14.5 hz. That about the same surface area of a single 7 inch port. I used the same port setup in 340 liters tuned to 16 hz with no port noise issues.

 

Yeah sure, that is easier to install (despite some more work) than a single 8" port.

 

Thanks guys for the help!!!!!!!!!
Smaller box is better but I will make room for the larger enclosure if need be. I really more concerned with sound quality and build quality as I am hoping to have kids soon and will not be able to afford more audio gear for 18 years. :bigsmile: And they will be matched with a 7.1 of wonderful Magnepan sound.

Matt

 

My opinion is if you don't mind going big, so do it. Take the plunge and get a titanic enclosure :yes: with its appropriate driver.

 

Like they say bigger is better right. :R I sent an email off to Ficar to get a quote on two 18's that will work well for a 14hz tune. The Mal-X just does not seem to model well in an LLT and SS is out of stock on the 18's.

Matt

 

Good decision! :T

 

Based on what you posted, you are splitting <split> hairs. If you think you will be able to notice a sound quality (or quantity) difference from your curve results you posted, you are mistaken.

All three driver models you listed are very capable and can satisfy even the most demanding 'EAR'. Drivers are usually the last factor of the equation. Read up on what others have used in similar environments to your own, and their subjective listening results.

Good luck in your shopping!

Best,
Mark

 

Thanks for the help guys! Are there any other drivers that can compete with these?
SS is out of stock....
Ficar's sub needs a HUGE box
Mal X is an unproven design but seems nice. :bigsmile:

Matt

 

If you like what you see in the Fi units, the answer is simple - build your box smaller and tune slightly higher. Trust me, you will not hear the difference between a Hz or two. Remember, what you are looking at is theoretical output, and not the real-world capabilities the sub-box combination in your listening environment.

Best,
Mark

 

All,

Pls make a specific suggestion, attach a model and list the benefits, otherwisw I am afraid Matt will be quickly lost.

 

Ok.

If you like what you see in the Fi units, the answer is simple - build your box smaller and tune slightly higher. Trust me, you will not hear the difference between a Hz or two. Remember, what you are looking at is theoretical output, and not the real-world capabilities the sub-box combination in your listening environment.

Drop the box volume to something you are comfortable with (say 50-100 litres) and up the box tuning a Hz or two. You're done.

Best,
Mark

 

50-100L :scratch: Are you speaking about a 18" vented sub?? Pls post a simulation to support your claim...

 

Post Fi's t parameters and I'll be happy to.

Now that I reread my earlier post, I can understand where confusion could set in. When I stated 50-100 litres, I was referring to 50-100 litres less than what the OP's original box size was. From what I can see from his picture, he modeled 792 litres for the Fi Q's. If he dropped the size to 700-750 litres he could tailor the tuning appropriately and not notice a difference.

Sorry for the miscommunication.

 

Thanks for the clarification. I don't have the parameters as they on my machine at home and ficars Q webpage is down. If my understanding is correct Ficar can modify some of the parameters so maybe they can work with me on getting it into a smaller box even if I lose efficiency.

Matt

 

No problem Mrogowski... Would have been very happy if this could ever happen :bigsmile:

 

I guess I am down to Ficar because I sent Diycable an email and never heard back and SS is out of stock. :bigsmile: I wish their where more options around the 300 - 400 price point.

Matt

 

Matt, you sound disappointed. Don't be. Scott builds good, solid product - the Q is his SQ unit. She'll move the air for you. Trust me, you will be impressed.

As I mentioned, if the box size is a bit big for you, don't be afraid to trim back a bit. With the room gain you will not lose anything.

Good luck!
Mark

 

Thanks for the positive response. :R I guess another option would be to go back in time and find a Adire Audio Brahma 15. It models really well in half the air space and the Fi. 283L and 17hz looks really nice for the Adire Audio Brahma 15.

Matt

 

In comparison, the Fi will sweep more air due to its size and will be more efficient as a result.

Why don't you post the Q parameters you have in your WinISD program so we can compare notes...

 

Matt,
The Brahma is a very nice sub but it will not do what the 18" FI Q will do in a box half the size. If the box for the Q is too big then just raise your tune a bit and cut some volume like Mrogowski suggested. If your wanting a slighty more manageable enclosure the Maelstorm and AA Havoc 18 do great in a bit smaller volume than the Q.

Alternatively if you need a smaller sub than a giant 20ft ported 18, you could go with 2 sealed ED 190v2 18's (199ea) in a much smaller box.