Woofer to complement......

one_happy_hippy · 16th February 2004, 02:12 PM

Looking for a woofer to complement a ATC SM75-150s dome mid and a Scan-Speak R2904 Ring Radiator tweeter.

The ATC is 94 dB spl / 300 - 4kHz
the R2904 is 94.5 dB spl / 2 - 40kHz.

Any suggestions?

Cheers all

sreten · 16th February 2004, 05:55 PM

It those are SPL figures for 2.83V input they are very impressive.

Due to Baffle step, the Woofer is an passive 3-way must have
6dB more SPL/Volt so you are looking at a 100dB/2.83V woofer.
Alternatively two 94dB/2.83V woofers used in parallel.

sreten.

one_happy_hippy · 16th February 2004, 07:10 PM

yes they are 2.83v / m as specified by the companies data.

I was looking to use a 10" subbass woofer - i have come accross the peerless SLS 263, CSX 257 H or 260 SWR. Also i have looked at the seas CA25RE4X/DC and the seas excel W26FX001. But he sensitivity of these are all 89 - 91dB ish.

Any more suggestion - would prefer not to have to use more than 1 bass driver (subbass)

kelticwizard · 16th February 2004, 11:26 PM

Well, this is a 15, but a lot of people used to use the Audax PR380M2. This has been discontinued, but only recently, and you still might find some around whether on Ebay or elsewhere.

There are some Fostexes around, but the excursion is miniscule.

Otherwise, you might just have to use a pro sound woofer.

Zappa · 16th February 2004, 11:40 PM

You could take a look around PHL. They make very high quality AND efficient drivers. Maybe a bit pricey but ATC and ring radiators are not exactly in the cheap league... Really excellent drivers.

16th February 2004, 02:12 PM	#1
one_happy_hippy diyAudio Member Join Date: Feb 2004 Location: UK	Woofer to complement...... Looking for a woofer to complement a ATC SM75-150s dome mid and a Scan-Speak R2904 Ring Radiator tweeter. The ATC is 94 dB spl / 300 - 4kHz the R2904 is 94.5 dB spl / 2 - 40kHz. Any suggestions? Cheers all

16th February 2004, 11:26 PM	#4
kelticwizard diyAudio Member Join Date: Sep 2001 Location: Connecticut, The Nutmeg State	Well, this is a 15, but a lot of people used to use the Audax PR380M2. This has been discontinued, but only recently, and you still might find some around whether on Ebay or elsewhere. There are some Fostexes around, but the excursion is miniscule. Otherwise, you might just have to use a pro sound woofer. __________________ "A friend will help you move. A really good friend will help you move a body." -Anonymous

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16th February 2004, 05:55 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	It those are SPL figures for 2.83V input they are very impressive. Due to Baffle step, the Woofer is an passive 3-way must have 6dB more SPL/Volt so you are looking at a 100dB/2.83V woofer. Alternatively two 94dB/2.83V woofers used in parallel. sreten.

16th February 2004, 07:10 PM	#3
one_happy_hippy diyAudio Member Join Date: Feb 2004 Location: UK	yes they are 2.83v / m as specified by the companies data. I was looking to use a 10" subbass woofer - i have come accross the peerless SLS 263, CSX 257 H or 260 SWR. Also i have looked at the seas CA25RE4X/DC and the seas excel W26FX001. But he sensitivity of these are all 89 - 91dB ish. Any more suggestion - would prefer not to have to use more than 1 bass driver (subbass)

16th February 2004, 11:40 PM	#5
Zappa diyAudio Member Join Date: Jul 2002 Location: Québec	You could take a look around PHL. They make very high quality AND efficient drivers. Maybe a bit pricey but ATC and ring radiators are not exactly in the cheap league... Really excellent drivers.

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