2" port to small...?

[cwzilly 10+ year member]

I have a 10" RE transducer and a previously used 0.75cubic foot sealed box (sub displaces 0.9 = .66). I would like to port the box; however, after calculating the port it seems I can only enclose a 2" diameter port. I must be dumbfounded, because this doesn't seem rite.

I absolutely do not want any port noise. I am more for sound quality not outright loudness. I kind-of like smaller enclosures, for their high-impact bass. This will be my first ported sub I have ever used in a car.

RE's owner manual recommends:

Ported:

• (compact) 0.65 cubic feet, tuning to 35 Hz
  
• (optimum; more towards the SPL side) 1.0 cubic feet, tuning to 35 HZ
  

I could also keep the box sealed, but I would need to decrease the internal space with coke or something.

Is it safe to tune to a lower frequency?

Click to read more...

 

[thevic24 5,000+ posts]

that box will sound like total crap if you port it with a 2"port or any port for that matter.