ficaraudio

**mcwhorter** · **09-06-06, 09:08 PM**

Anyone seen or heard of these Subwoofers
www.ficaraudio.com

I am thinking about getting one of the Q18's for my home theater. Any idea how it compares to the Soundsplinter rlp15 or TCsounds TC3000?

**Exocer** · **09-06-06, 10:31 PM**

I e-mailed the owner of Ficar audio and got a reply 1 day later. Nice dude. He explained a few things about Le and shorting rings that i'll never forget

Last I heard he was still trying to get his website complete with T/S parameters

Woah, looks like the T/s are up now.

Looks like the Q 18 wants to see a much larger box than a single Tc-3000 or Rl-p 15. 700 liters tuned to 15hz looks good for the Q 18...I wouldn't bother going sealed with such large box requirements...guess its the high Qts?

you can get close to the same output with the Rl-P 15 in a 400 liter box tuned to 15hz. Of course you have the cone area advantage of the 18" over the 15" Rl-P...But an 18" rl-p is in the works...

**Sonnie** · **09-06-06, 11:00 PM**

**mcwhorter** · **09-07-06, 01:44 PM**

Quote:

Exocer wrote:

...But an 18" rl-p is in the works...

You've got my interest now. Anyone know the timeframe on the 18?

**WillyD** · **09-07-06, 03:51 PM**

Also, 18" versions of the TC-3000 and TC-2000 are currently in production.

http://www.avsforum.com/avs-vb/showt...&&#post8376866

**ThomasW** · **09-07-06, 04:35 PM**

Scott (he's Mr FiAudio) knows his way around a loudspeaker and has been doing so for quite a while. He was the engineer at RE (Resonant Engineering).

Pricing on these drivers is quite attractive given they include shipping. So the market once again is widening for high performance drivers at reasonable prices..

**soloxp** · **09-13-06, 09:25 PM**

I'll have the Q15 tomorrow. I'll take some pic's. By the way this is a nice forum.

**Exocer** · **09-13-06, 09:34 PM**

Quote:

soloxp wrote:

I'll have the Q15 tomorrow. I'll take some pic's. By the way this is a nice forum.

Welcome to the shack!
What are your design plans?

**Sonnie** · **09-13-06, 09:53 PM**

Yeah...welcome to the Shack solo!

Look forward to hearing about and seeing more of your project.

**SteveCallas** · **09-13-06, 10:54 PM**

Thomas, there is an 18" driver with 27mm excursion, yet no low distortion motor technology nor shorting rings are being used. Would you consider this a problem? I'd feel a bit hesitant myself.

**ThomasW** · **09-13-06, 11:34 PM**

Destijl engineering made the XBL^2 drivers for both Adire and Ascendent.

Here's Scott's email reply when ask about his new drivers for use in IB subs.

Quote:

We make no use of shorting rings in the motor itself. There simply isn’t enough room to fit them, and those that are putting these thin copper rings in the motor are actually doing nothing to lower inductance in the sub region. It takes 5mm of copper to noticeably reduce inductance and IMD in the bass region. Thinner rings do reduce distortion at higher frequencies, but these are designed as true subwoofers and I highly doubt that you will need a lower inductance at 500 Hz. Also, those that are fitting the copper/aluminum pole caps are simply making IMD worse. Yes they reduce inductance overall, but it is in one direction (the out stroke) leaving the highest inductance direction (instroke where the coil is completely around the pole piece) unchanged. Creating a larger difference between the in and out inductance actually creates more distortion. You first try to reduce it on the instroke, then... if you can get it lower than the out, try to balance things further. While it is not the lowest distortion sub in the world (by any means) it would make for a great IB sub with excellent excursion and detail. I no longer use XBl for any subs or motor designs. While I have found several benefits to it, there are also several drawbacks for many applications.

**soloxp** · **09-14-06, 01:09 AM**

I had 2 sonotube 8.2 cu.ft. with 2 kicker comp15 tuned to frist 12.5hz...but it bottom cut way to fast. So I went with 16hz. That made a big different....but it still bottom out some. The kicker comp15 just had 11.5 xmax. I was going to get the RL-p 15...but everyone have it. So I want to do something different. I'm going to try the Q15 in the 8.2cu.ft. tuned to 16hz and see how it go.

**soloxp** · **09-14-06, 06:22 PM**

It just came in. Here some pic's

**Exocer** · **09-14-06, 08:24 PM**

I like that Fi logo a lot.

**derekbannatyne** · **10-07-06, 04:24 PM**

Have you finished your subs yet? Those new subs look nice!

**soloxp** · **10-09-06, 12:52 AM**

Quote:

derekbannatyne wrote:

Have you finished your subs yet? Those new subs look nice!

It's still in the 8.2cf sonotube. I did add a EP1500 to it...and all I can is wow!

. This 1 sub blows away the to 2 Kicker Comp15". There's no bottoming out. Here the T/S parameters for the custom dual 4ohm.

Re 2.8Ohms per coil (5.6 in series)
Fs 22.9 Hz
Qms 5.34
Qes .46
Qts .41
Mms 270 g
Vas 164.1 l
Sd 810cm^2
Bl 21.86 N/A
Spl 88.2 1W/1m

How big of a solosub you guys would build. Right now this thing will get low.

Thanks Solo

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