i was hoping to go but my suv is in the shop

 

with your box id think you would get in the 140s on this sensor.

also keep in mind though the sensor being used tomorrow (ac190) is typically around 1.5db higher than the termlab which is much more widely used around the world.

you should be up against my gf's car

 

more like 10db's

 

The AC190 is usually much closer to the TL than the previous audiocontrol meters.

 

Why 4 ohms?

 

I don't think the M1005 is stable at 1 ohms.

To the original poster: start by grabbing another M1005, one for each sub. The Type X is not the most efficient driver Alpine makes, so you need to step up the power to gain some output. Each is seeing about 300-400W RMS right now; going to 1kW each will be a big difference.

 

a 137 is a nice start, was the speaker location in your car optimum? Sounds like your power is lacking a bit.. you may get to the 140's but really it is a fine sounding speaker and 137 IS darn loud, and they are only 10" drivers. I bet you were fairly close to a trophy position too. The type X is not an end all SPL monster but it does well (I have seen a pair of 15" type R do mid to upper 140's)

 

True, the 1005 will not run at 1 ohm, it will protect every time, and they do not make too much power at 4 ohm, at 2 ohm they will do an easy 1100 watts.

Your set-up has easy 140-143 in it with a different amp, maybe more with some box work and set-up work.

Send me a quick email with some pics of your set-up, I am sure I could help you get your score up for the next show.
basscreator@hotmail.com