When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
You're not reading it @ db's @ 1 watt.They all LOOK like they're above 90,......but using @ 2.83 volts,..makes the numbers look better.
Just a marketing ploy that was started to compare apples and pineapples !
As an example: 92.5 dB at 2.83 volts is the same as 89.5 dB at 1 watt
See how that works ??? Sneaky sneaky !!
AS I said before,...it doesn't mean that it won't sound good,......it'll just take more power to get it there.
I understand but isn't using the 2.83v a more accurate way of measuring since the amp actually puts out voltage and therefore is a measurement that is a better measuring stick? IDK just a thought.
I understand but isn't using the 2.83v a more accurate way of measuring since the amp actually puts out voltage and therefore is a measurement that is a better measuring stick? IDK just a thought.
Believe me,........... if they put up those numbers using db's @ 1 watt,......that would be the number they used !!
For example,...........I buy the Biggest milk jug available, 128 ounces.. You guys that don't know better, probably buy 4 quarts......
It sounds like I got a better deal, because I got 128 of something......same difference.....
Speaker specs were never measured at 2.83 volts,..............but since it produces a higher number, SOME use it now,.....to try to 'measure up' with the speakers that DO put up those numbers......
Maybe a better analogy would be,....................I tell everyone that my car does 70 !!! They all know that I'm talking about miles per hour.........
You know your car only does 55 (mph), but you tell everyone it does 88 !!!
They think you have a BAD *** FAST car..............In small print, you put kilometers per hour ........
The efficiency numbers on those speakers all spec out to below 90db @ 1 watt.......... Weird that the 6X9 has the highest effiency rating..... too bad the frequency isn't lower........
IIRC,.........Nutz has stated MANY times that he wouldn't buy a speker that spec'd out below 90.
As a barometer,....I think the Polk MM's are at/close to 94.........
Doesn't mean they can't sound good,......just means it takes some pushin' to get them there.
The 6X9's are the most efficient, as I said. That's kinda weird. Just which they had a much lower frequency...........
The measurement 2.83volts is 1watt with an 8ohm load....so..........
A speaker 3 dB less sensitive will require twice as much power to play at the same level. You would have to put 100 watts into a speaker rated at 86 dB 1w@1m to get it to play at the same level as a 92 dB speaker with 25 watts input.
The example just shows how exponentially vast the difference of 'efficiency' ratings really is !! I just wish that the vendors would all use the same scale, as to not 'fool' anyone.
`
Last edited by GLACIERPEARL; Apr 6, 2013 at 10:14 PM.
Fellas,
I'm just looking to do one solid simple system with my stock HK HU. My plan was 2 stes of the Polks DB651 and the SS 520. Now I see you talking about the Bikertonics 7.1 speakers. Would the 7.1's & Polks in pods sound better?
sorry guys. been out in the hill country all weekend.
exactly what GP said here.. and in retrospect the reason I recommended the BT 6.5" Titan II is because they can handle power and although their speakers are rated at 2.83v, as GP stated it take more power to push them to the same equal point and the SS as well as other amps have the power to drive them so no real concerns on my end.
Originally Posted by GLACIERPEARL
You're not reading it @ db's @ 1 watt.They all LOOK like they're above 90,......but using @ 2.83 volts,..makes the numbers look better.
Just a marketing ploy that was started to compare apples and pineapples !
As an example: 92.5 dB at 2.83 volts is the same as 89.5 dB at 1 watt
See how that works ??? Sneaky sneaky !!
AS I said before,...it doesn't mean that it won't sound good,......it'll just take more power to get it there.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.