Hi All,
I'm an experienced designer and builder of speakers and have a set of large JBL and BMS based mains* designed and will begin construction soon.
Once these are done, I'll turn my hand to a set of rears, and I need some advice to what sort of performance I should aim for with regard to the mains so I can set a spec and start fiddling with the design before I begin the build in the latter part of the year. In the meantime my first series Realistic mach Ones will serve that duty.
A designer I respect greatly, Lynn Olson, suggests the rears should ideally be the same as the mains to integrate properly and to get the best performance. Intuitively, this seems correct, but the mains will be very large, the drivers took ages to source and I'm not sure I could get another set easily or cheaply. However I will if need be.
So, what I'm after is some idea from the more experienced DIYers as to where to set the performance spec for the rears for the best all round performance. I'd rather do it once and then just use them for several years.
Should I just build another pair as close as possible to the fronts?
Would a similar tonality with less LF extension be OK? How much less?
Some have suggested OB's. I have drivers that will work for a large OB dipole but they would sound good, but dissimilar to the mains. Comments? Suggestions?
* The mains will be an WMTMW on a wide baffle similar in appearance but substantially larger than Troels Gravesen's Poor Man's Strad and Acapelle WB
Driver complement is JBL 2225 60-250Hz, JBL 2123 250-1k2Hz and BMS 4592 and OS WG > 1k2Hz. It'll all be active and multiamped.
Rears would also be multiamped active, but I'll build them into the enclosure and remote switch them on so there's only a powercord and signal cables running to them.
Current room is a bit small, 6.5m x 4m x 3m but after I finish with school and my work contract, I'll move back to my home which is basically a huge open plan living/ dining / kitchen so they'll need to be able to fill a lot of space well as the previous horn system did.
System will be Mains + rears + subs. Never found the need for a centre.
Any or all help is welcomed and suggestions gratefully received.
I'm an experienced designer and builder of speakers and have a set of large JBL and BMS based mains* designed and will begin construction soon.
Once these are done, I'll turn my hand to a set of rears, and I need some advice to what sort of performance I should aim for with regard to the mains so I can set a spec and start fiddling with the design before I begin the build in the latter part of the year. In the meantime my first series Realistic mach Ones will serve that duty.
A designer I respect greatly, Lynn Olson, suggests the rears should ideally be the same as the mains to integrate properly and to get the best performance. Intuitively, this seems correct, but the mains will be very large, the drivers took ages to source and I'm not sure I could get another set easily or cheaply. However I will if need be.
So, what I'm after is some idea from the more experienced DIYers as to where to set the performance spec for the rears for the best all round performance. I'd rather do it once and then just use them for several years.
Should I just build another pair as close as possible to the fronts?
Would a similar tonality with less LF extension be OK? How much less?
Some have suggested OB's. I have drivers that will work for a large OB dipole but they would sound good, but dissimilar to the mains. Comments? Suggestions?
* The mains will be an WMTMW on a wide baffle similar in appearance but substantially larger than Troels Gravesen's Poor Man's Strad and Acapelle WB
Driver complement is JBL 2225 60-250Hz, JBL 2123 250-1k2Hz and BMS 4592 and OS WG > 1k2Hz. It'll all be active and multiamped.
Rears would also be multiamped active, but I'll build them into the enclosure and remote switch them on so there's only a powercord and signal cables running to them.
Current room is a bit small, 6.5m x 4m x 3m but after I finish with school and my work contract, I'll move back to my home which is basically a huge open plan living/ dining / kitchen so they'll need to be able to fill a lot of space well as the previous horn system did.
System will be Mains + rears + subs. Never found the need for a centre.
Any or all help is welcomed and suggestions gratefully received.
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