Quote:
Originally Posted by secondchance
Bazookas don't really do much. So, I built this enclosure about 3 years ago and hooked up an old Alpine I had. New "low profile" sub allowed me to keep the sub box relatively small.
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This will be a nice hijacking of this tread....... Your enclosure
blends in nicely and looks to have plenty of clearance for the top to fit in. Did you check the cabinet for resonance? The reason I ask is the small size usually leads to problems like that. If so you can tune it out with a "port".
A port is a 2in (or so) diameter hole with a tube (ABS plastic will do) into the hole. The depth of the inserted tube will tune out the resonance.
In this case the resonance would be up close to the top of the low range because of the small box size.
To find resonance you can use a leveled tone audio source then sweep through down to 20Hz or so. Where ever the tone seems to get louder is your box resonance. Then use the tube to tune it out.
Alternatively...... using a graphic equalizer (in the tuner) you could put a notch at the resonance location.
But then if it sounds good to you as it.... it's all good.
The last box I built was for an Explorer. It was large enough where the resonance was down low so I didn't care.
Trivia: next time in the shower find the resonance of the shower booth by creating a tone and slowly lower it until you hit it. Almost all showers will have a resonance. My kids use to day "Dad you have a problem". I'd say " oh well".
