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Multi-Way Conventional loudspeakers with crossovers

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Old 22nd April 2012, 08:51 PM   #1
diyAudio Member
Join Date: Jan 2012
Default DIY build, some advice please!

Hi eveyone,

I'm having a bit of an experiment. I currently have some fugel horns with fostex fe126en drivers.

I want to boost the bass a bit, not a lot, I live in flats and swmbo won't allow wall shakers so I want to use some Monacor drivers that I have.

Monacor SPH-135C

Now, you'll probably say I won't get as good results as I could but this is a learning exercise too so I'm happy to compromise but, I'd like to build a two way bass reflex sized box, one that can eventually take a tweeter as I evetually want to build some two way speakers too and have a play with those. Another reason for this is that I have some gorgeous oak speaker stands which are sulking and I want to put them back into use too.

So, what kind/style of cabinet could I use, capacity, approx dimensions etc? Also, crossovers?
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Old 22nd April 2012, 09:04 PM   #2
diyAudio Member
Join Date: Jan 2012
I should add, if the bass reflex idea is real no go I did consider building the Rogers AB1 bass extender style enclosures used with the BBC ls3/5a speakers, god/bad idea?
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Old 23rd April 2012, 01:28 AM   #3
diyAudio Member
Join Date: Feb 2002
Location: Western Sydney
a box around 16 L tuned to 40-42 hz should suit these drivers;
however they are ~5dB less sensitive than the FE126's, either bi-amp or use 2 monacors per side
You may find this thread useful:
Help! Monacor sph 135C xover
Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
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