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When I am trying to compare subwoofers based on efficiencies I always remember back in the day they were rated at 1w/1meter and now they are measured at 2.83 volts. Whats the difference? How does that translate in terms of DB GAIN. I am sure manufacturers are doing it to make there products look better the same way some companies give power ratings at 17 volts when they used to rate them at 12 volts. When this is all said and done I want to find a pair of 12" woofers that are affordable about $100 dollars each online and will do well on 500 watts rms!
Posts: 159 | From: Decatur Illinois | Registered: Jan 2008
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posted
2.83V is a measurement that is most accurate on single 8ohm speakers. when using that measurement on lower impedance, you get HUGE gains on the "trick'ing" numbers.
so, you can look at a dual 2ohm sub, rated at 2.83V, and it's efficiency can be 9dB higher. f*ck ratings like that. also, some really cheap """subs""" may be rated at 1.5kHz where they have peak efficiency, but may be WAY lower efficiency at any frequency you'd ever play them at.
I would NEVER look at efficiency when choosing a woofer
Posts: 5501 | From: Columbus, OH - formerly FL | Registered: Oct 2003
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In your opinion what should I be most concerned with then? My last system woofers were Cerwin Vega, A single stroker pro 15 then 2 v-max 10"s in big ported boxes now that I am no longer work for a dealer I am really limited to what I can find online. I really liked both of those. What would be your suggestion?
Posts: 159 | From: Decatur Illinois | Registered: Jan 2008
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This will be for a daily set up in my 4 DOOR well dynamatted civic. The amp I will be running for a few months will be an old school MTX 2150X AFTER A COUPLE OF MONTHS I think I am going to use a hifonics brutus 1200w RMS ON THE PAIR.
Posts: 159 | From: Decatur Illinois | Registered: Jan 2008
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