low end woofers

dalcorn · 6th April 2006, 03:55 AM

What is the best approach to take in the low frequency range (~35Hz) ?

I have built my own bookshelves and thought i might just make some dual 6.5" woofer floorstanders and a subwoofer.

I have looked at some of the 15" woofers out there and what not, and saw extreme cases of designs with ~27-31" woofers.

The bookshelves I designed were sealed enclosures and I want to stick with that.

Room size is 12' x 19' (living room)

Bose(o) · 6th April 2006, 04:17 AM

I'd recommend going with something of your preferred resistance flavour by Adire Audio. Of course, though, I have to ask if you want active/passive because woofer just doesn't sound the same when run passively.

dalcorn · 6th April 2006, 04:25 AM

probably active crossover and biamp... woofer on one amp and then high/mid on another

dalcorn · 6th April 2006, 04:34 AM

http://www.acoustic-visions.com/~aco...dire_extremis/

6.8" seems good? first time seeing it

i might just need 1 of those.... not too sure... i suppose i'd get more bass with a tuned ported enclosure? i'd prefer to do sealed but maybe someone could convince me otherwise

dalcorn · 6th April 2006, 05:34 AM

spamming my own post... but reading more i think i want to do a vented enclosure to get the lower bass response...

not sure if i should do two of the 6.8" drivers in parallel....

Calvin · 6th April 2006, 07:16 AM

Hi,

if You want deep and precise bass I strongly discommend vented enclosures like BR or BP. They don´t give precise bass with very low tuning frequencies. The group delay reaches values which are audible.
Better stick to closed subs with bigger drivers or dipoles. Keep in mind the room gain, which boosts bass response.

jauu
Calvin

blank527 · 6th April 2006, 01:35 PM

Have a look at the Peerless XXLS series.

Greetings,
Remco Blankesteijn

Bose(o) · 6th April 2006, 03:32 PM

Sooo, you want small drivers for the sub??

The Adire Extremis, is really, EXTREME, I love it. I'm using one in my frined's Jeep and, soon to be another added in parallel. They are very good woofers and are very reliable under the abuse of the automotive environment.

dalcorn · 6th April 2006, 08:23 PM

Not necessarily small... just I wasn't sure if they offered a better solution than a very large woofer

15" woofer versus 6.8" extremis....

the dayton hi fidelity 12" seems like the best cost/benefit ratio of what i've seen

dalcorn · 6th April 2006, 08:24 PM

i suppose i should clarify that this is for a home audio 2CH setup...

6th April 2006, 03:55 AM	#1
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	low end woofers What is the best approach to take in the low frequency range (~35Hz) ? I have built my own bookshelves and thought i might just make some dual 6.5" woofer floorstanders and a subwoofer. I have looked at some of the 15" woofers out there and what not, and saw extreme cases of designs with ~27-31" woofers. The bookshelves I designed were sealed enclosures and I want to stick with that. Room size is 12' x 19' (living room)

6th April 2006, 04:17 AM	#2
Bose(o) diyAudio Member Join Date: Dec 2001 Location: Ottawa, Ontario, Canada	I'd recommend going with something of your preferred resistance flavour by Adire Audio. Of course, though, I have to ask if you want active/passive because woofer just doesn't sound the same when run passively. __________________ ERTW 4 life! "the day has 24hours. If that is not enough take the night."-Roemhild

6th April 2006, 07:16 AM	#6
Calvin diyAudio Member Join Date: Nov 2004 Location: close to Basel	Subs Hi, if You want deep and precise bass I strongly discommend vented enclosures like BR or BP. They don´t give precise bass with very low tuning frequencies. The group delay reaches values which are audible. Better stick to closed subs with bigger drivers or dipoles. Keep in mind the room gain, which boosts bass response. jauu Calvin

6th April 2006, 03:32 PM	#8
Bose(o) diyAudio Member Join Date: Dec 2001 Location: Ottawa, Ontario, Canada	Sooo, you want small drivers for the sub?? The Adire Extremis, is really, EXTREME, I love it. I'm using one in my frined's Jeep and, soon to be another added in parallel. They are very good woofers and are very reliable under the abuse of the automotive environment. __________________ ERTW 4 life! "the day has 24hours. If that is not enough take the night."-Roemhild

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6th April 2006, 04:25 AM	#3
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	probably active crossover and biamp... woofer on one amp and then high/mid on another

6th April 2006, 04:34 AM	#4
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	http://www.acoustic-visions.com/~aco...dire_extremis/ 6.8" seems good? first time seeing it i might just need 1 of those.... not too sure... i suppose i'd get more bass with a tuned ported enclosure? i'd prefer to do sealed but maybe someone could convince me otherwise

6th April 2006, 05:34 AM	#5
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	spamming my own post... but reading more i think i want to do a vented enclosure to get the lower bass response... not sure if i should do two of the 6.8" drivers in parallel....

6th April 2006, 01:35 PM	#7
blank527 diyAudio Member Join Date: Nov 2001 Location: Haarlem	Have a look at the Peerless XXLS series. Greetings, Remco Blankesteijn

6th April 2006, 08:23 PM	#9
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	Not necessarily small... just I wasn't sure if they offered a better solution than a very large woofer 15" woofer versus 6.8" extremis.... the dayton hi fidelity 12" seems like the best cost/benefit ratio of what i've seen

6th April 2006, 08:24 PM	#10
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	i suppose i should clarify that this is for a home audio 2CH setup...

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