Design constraints:
1.6 cu ft sealed cab (will consider vented after I exhaust sealed solutions)
limited baffle width means I can only use a single 10 inch or dual 8 inch drivers
91-92db eff
F3=?
I will purchase an amp-DSP to help get bass into lower frequencies
The upper XO point will be approx 200hz (possibly a bit lower)
Struggling to decide om a driver and was hoping for suggestions thanks.
1.6 cu ft sealed cab (will consider vented after I exhaust sealed solutions)
limited baffle width means I can only use a single 10 inch or dual 8 inch drivers
91-92db eff
F3=?
I will purchase an amp-DSP to help get bass into lower frequencies
The upper XO point will be approx 200hz (possibly a bit lower)
Struggling to decide om a driver and was hoping for suggestions thanks.
My new design is kind of like the Salk Exotica 3. A bass section with a XO to a Mid at 175hz. The current speaker has a Dayton RS270 and doesnt go too low and is only 86db. I already have a direct servo sub. I am thinking now to Bi Amp with a Crown XLS 1002 with a MiniDSP. I guess I can start by staying with the same driver and upgrade over time.
That efficiency in a cabinet that small will lead to a high f3.
If you're after a subwoofer, I'd recommend finding something with lots of power handling and applying plenty of EQ. Efficiency is a secondary concern if you're going to EQ it anyway - you might as well find something that'll take the EQ than a lightweight pro-audio 10" midbass which might just get the efficiency up, but will bottom out at the first sign of serious low end.
Chris
If you're after a subwoofer, I'd recommend finding something with lots of power handling and applying plenty of EQ. Efficiency is a secondary concern if you're going to EQ it anyway - you might as well find something that'll take the EQ than a lightweight pro-audio 10" midbass which might just get the efficiency up, but will bottom out at the first sign of serious low end.
Chris
Hi jimbones,
Post #1: "...1.6 cu ft sealed cab (will consider vented after I exhaust sealed solutions)...single 10 inch or dual 8 inch drivers 91-92db eff... upper XO point will be approx 200hz (possibly a bit lower)..."
Post #5: "...hoping to get an f3 of about 45hz...not a sub, but a woofer section."
I messed around w/ a MCM 55-2421 a while back, and came up w/ a dual driver filled-duct alignment (something between aperiodic and vented) that might work for you. The duct and the internal volume add up to about 1.6ft^3. You could design it as a PPSL to reduce driver related distortion. This driver's Xmax=8mm, which will allow low frequency boost to be used in sealed applications. The sensitivity should be in the ballpark.
Regards,
Post #1: "...1.6 cu ft sealed cab (will consider vented after I exhaust sealed solutions)...single 10 inch or dual 8 inch drivers 91-92db eff... upper XO point will be approx 200hz (possibly a bit lower)..."
Post #5: "...hoping to get an f3 of about 45hz...not a sub, but a woofer section."
I messed around w/ a MCM 55-2421 a while back, and came up w/ a dual driver filled-duct alignment (something between aperiodic and vented) that might work for you. The duct and the internal volume add up to about 1.6ft^3. You could design it as a PPSL to reduce driver related distortion. This driver's Xmax=8mm, which will allow low frequency boost to be used in sealed applications. The sensitivity should be in the ballpark.
Regards,
Attachments
Hi jimbones,
Yes, push-pull slot loaded, djk's design see:
http://www.diyaudio.com/forums/subwoofers/177905-thread-those-interested-ppsl-enclosures.html
The MCM 55-2421 is the cheap brother to the Tang Band W8-740P:
Tang Band W8-740P 8" Subwoofer
and Parts Express added a new Eminence 8" #290-4008:
Tang Band W8-740P 8" Subwoofer
The Tang Band and the Eminence are probably higher quality and have higher Xmax, but have higher price and lower sensitivity.
Regards,
Yes, push-pull slot loaded, djk's design see:
http://www.diyaudio.com/forums/subwoofers/177905-thread-those-interested-ppsl-enclosures.html
The MCM 55-2421 is the cheap brother to the Tang Band W8-740P:
Tang Band W8-740P 8" Subwoofer
and Parts Express added a new Eminence 8" #290-4008:
Tang Band W8-740P 8" Subwoofer
The Tang Band and the Eminence are probably higher quality and have higher Xmax, but have higher price and lower sensitivity.
Regards,
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