NEW GRS 10SW-4HE 10" High Excursion Subwoofer 4 Ohm

[johnnyrichards]

The 8" still models fantastically.

[rpb]

The 8" still models fantastically.

I've been modeling many drivers the last couple of days. I almost bought the 12" today, but missed the sale, so I held off. I have a situation of sorts. In my living room, there's two locations where a sub works well. One is in direct view behind the front right main speaker. I want a small box for cosmetic reasons. I have an AVR that has power for the sub built in. It's uncertain how much clean power is available, but I figure enough if I have the right sub. I was leaning toward sealed, but ported, and a larger box gets more output for the same power. Assuming I have 100w into 4 ohms, do you think that's enough (with the 12 ), for an action movie. This models to about 100dB if ported, but only 95dB if sealed. These are approximate numbers. If I get that spl at the seats, I'll be satisfied.

The more drivers I modeled, the more a trend became obvious. (Hoffmans Law I think.) Several woofer sims with over 9 cu-ft produce great spl with only 25w! I have a 7 cu-ft sub that is normally used in another room. It sounds good in the living room, if located as mentioned, but horrible in other spots. I have a sealed RS270p in 1 cu-ft box that sounds very good with music, but I bottomed it out playing a movie recently. I believe that a low Q sealed roll off with the 12 will sound good, but I question having enough power.

Was there a question in there? Oh, have you tried plugging the port(s), and comparing? Comments on how much power is needed?

[rpb]

Model with new specs. More output at 40hz, and less at 20hz. Note....60hz low-pass makes f3 lower than specs would suggest. A 19hz high-pass filter rolls off a little of the bottom end.

[rpb]

Bigger box with new specs. Note the lower power.

[rpb]

Excursion is just reaching x-max in each sim.

More with revised specs.