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Dayton Audio RSS315HFA-8 12" Reference HF Subwoofer 8 Ohm
I have a JBL 12' subwoofer, its a ported enclosure. I replaced the amp with a Dayton sa240 when the original died. My question is, what would be a good sub to replace the original speaker. it recently passed away. I will using it for movies and music
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Date published: 2014-08-05
would this be a good upgrade for a klipsch synergy sub 12?
The best woofer for that enclosure would actually be the Dayton Classic 12" subwoofer below.http://www.parts-express.com/dayton-audio-dcs305-4-12-classic-subwoofer-4-ohm--295-204If you wanted to use a Reference series sub, the RSS315HO-4 would be the best option.http://www.parts-express.com/dayton-audio-rss315ho-4-12-reference-ho-subwoofer-4-ohm--295-466
Date published: 2014-07-29
This says optimized for large enclosures, I have a large ~10.5 cu.ft. 2x12 ported box which I am looking to upgrade. This sims well, but the HO-44 (295-467) goes a little flatter/lower (f3~15Hz). Am I missing something, or suggestions for my box?
The best option for that volume is the RSS315HFA-8. The HO-44 will lack output and sensitivity in such a large enclosure while the HFA-8 will handle full power and have 3 dB more output per watt overall.
Date published: 2014-04-30
Mounting Information in cm?send to ireland?
The dimensions as listed in the spec sheet are in mm. You can see this below. We do ship to Ireland.http://www.parts-express.com/pedocs/specs/295-445-dayton-audio-rss315hfa-8-specifications-47083.pdf
Date published: 2013-12-13
Is this considered a long throw?
The term "long throw" simply means high excursion and this would be classified as a high excursion driver.
Date published: 2013-10-31
Clarifying the formula for downward firing subwoofers.
The formula for the calculations is: Percentage of Sag = 24,849 / ( Xmax * Fs²). However, according to the explanation of sag, two variables (Vas and Sd) are missing from the formula. It says: "You will need the Fs, Vas, Sd (surface area of the cone), and the Xmax to determine the relative long term usefulness of up or down-firing any woofer." If Vas and Sd are needed to determine sag, why aren't they included in the formula?
To find sag you will need to find your Cms then Mms and then Sag.Cms = Vas / (1180 * c^2 * (Sd/10000)^2)Where:c = speed of sound (m/s). Generally 343m/sSd = effective surface arean in square cm (cm^2)Cms (m/N)Mms = 1 / ((2*pi*Fs)^2 * Cms)Where:pi = 3.14159Fs = resonant frequency (Hz)Mms (kg)Sag = Cms * Mms * gWhere:g = accerlation of gravity 9.81m/s^2You sag should not be more than 5% of your XmaxPercent of Sag = (Sag/Xmax) * 100I believe Vas, Sd, and Xmax where all used. However if you look at the spec sheet Cms and Mms are already given (0.21 mm/N and 195.2 g respectively).So Sag = 0.00021*0.1952*9.81 = 0.000402 meters (0.402mm)%Sag = (0.402/14.3)*100 = 2.81% = GTG [Good To Go]!Best of luck and I hope this helps.
Date published: 2013-05-28