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Multi-Way Conventional loudspeakers with crossovers

Bass driver choice
Bass driver choice
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Old 31st July 2020, 02:05 PM   #1
Bazabing is offline Bazabing  United Kingdom
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Default Bass driver choice

I posted a while ago about taking the drivers and crossovers from my audio excite revelation 2 monitors and building a 3 way floor stander.
My plans are to keep the passive x over and add active amps for the new bass drivers. Due to WAF I have agreed to use two 6.5" bass drivers per side (narrow cabinets with curved sides).

As the existing speaker uses a scan speak 15w4531g00 I thought that it would be a good idea to use 18w8531 as bass drivers as these are likely to integrate well with the 15w units that I already own. After having to put this project on hold due to personal reasons, I am now able to start up again

My main dilemma however is that when I searched for prices on these units, a couple of websites stated that they are being discontinued! Do I snap up four of these units while I can or would it be wiser to look for alternatives of a similar quality? If so, any recommendations?


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Old 31st July 2020, 09:13 PM   #2
MrGecco is offline MrGecco  Norway
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Are you sure it won't be better to just add an active sub woofer or two to aid the low end of the monitors? If not, you will have to rebuild the entire crossover. New baffle means new crossover, and it will all have to be measured and simulated as such, otherwise it will sound way way worse than just the monitors on their own.
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Old 1st August 2020, 05:47 AM   #3
Bazabing is offline Bazabing  United Kingdom
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I've modelled new cabinets in CAD and the new baffle is only 8mm wider than the existing one and I have kept the spacing between the units and the top of the baffle the same.
One of the main reasons for changing from monitors is a house move has meant a noticeably larger room. This is fine at low volumes but when you play louder with music that has layers of bass the little 5" drivers lose their wonderful sound and dynamics. I figure I will be best rolling of the lower freq's to this unit, effectively using it as a mid and letting 6.5" drivers take care of the bass.
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Old 1st August 2020, 02:00 PM   #4
Inductor is offline Inductor  Portugal
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You are experimenting so no harm in using a SCANSPEAK 18W/8531G00 (88 SPL driver) you mention in a 43L/29Hz with a heavy inductor in series to cross the lower SPL 2way.
Link: Funk music old school
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