Need recommendations on enclosure for CDT Sub

[dacheatham 10+ year member]

So I picked up a CDT SQ-1200 for a decent price for my next build. It is a 12 inch cast with an rms of 600, which is right about what I will be putting to it. CDT recommends a very small sealed enclosure, no more than .75. I am no WinISP pro but when I modeled this I could not get a decently flat curve in a sealed enclosure and had almost nothing at the lower end(which I expected sealed)

When I modeled the sub in a ported enclosure, around 1.2 @ 30hz I got a much better looking curve and low end.

Can someone else model this is WinIsp or BB and see what you get? Thanks

Name: SQ-1200

Fs = 25 Hz

Qms = 7.2

Vas = 66 liters

Cms = 0.189 mm/N

Mms = 214 g

Rms = 4.678 kg/s

Xmax = 20 mm

Xmech = 30 mm

P-Dia = 251.3 mm

Sd = 495.9 sq.cm

P-Vd = 0.992 liters

Qes = 0.25

Re = 3.8 ohms

Le = 2.3 mH

Z = 4 ohms

BL = 22.6 Tm

Pe = 600 watts

Qts = 0.242

no = 0.398 %

1-W SPL = 88.14 dB

2.83-V SPL = 91.38 dB

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[nvturbo 10+ year member]

It really depends on the space you have available in your car/truck. Figure that out first and then work backwards.

 

[RangerDangerV2 5,000+ posts]

.75 cu ft gives you an Fc of 50.669hz, which sounds like a good starting point to me. IMO, winisd is useless.

 

[dacheatham 10+ year member]

I have plenty of room since I will just have one sub.

 

[nvturbo 10+ year member]

I have plenty of room since I will just have one sub.

Even if that's the case, you will still have to know what size box you need/want. We can recommend you countless box sizes but if they won't fit in your car/truck, it's pointless.

 

[dacheatham 10+ year member]

As stated earlier, I have modeled .75sealed and 1.25 ported so I would like to stay in that area but can go larger if needed. My main concern is will the T/S parameters work well ported? I have the room and would like the extra output and low end extension if it works well. Winisd shows that it does but it is not a perfect program not am I a perfect user.

The ultimate goal is to getter the flattest response as possible, obvious since I chose this speaker, but output is always appreciated.

Thanks for the help so far.