Leslie Horn Assy Dimensions

[ed allen]

Hi everyone - i'm planning to build an enclosure to house an internal leslie rotor and would like to allow for future expansion to add a leslie horn as well.</P>


the low frequency rotor, which will use a JBL K-110 (10 inch) speaker will fit on a baffle board that is 17-1/2 inches square. that's the minimum inside dimension of the enclosure (length &amp; width) to accomodate the bass rotor.</P>


can anyone tell me if a) a leslie horn assy will fit inside this footprint (if not what dimensions should i use) and b) what height should i include for the rotor assembly?</P>


my plan is to assemble the rotor components on baffle boards then set them and fasten them onto cleats inside the cabinet, so i don't really need to allow for clearance to assemble the components inside the cabinet; but just enough to allow for everything to fit and operate.</P>


i'm shooting for a leslie junior-sized cabinet with approximate dimensions of approximatley 18 x 18 x 30 inches (L x W x H).</P>


BTW - i haven't found any dimensioned drawings or plans for leslie cabinets on the internet anywhere. if anyone knows a source please advise as this would provide the type of horn enclosure info i'm seeking.</P>


Thanks All - Ed</P>

[CEB]

Re: Leslie Horn Assy Dimensions



That seems too small a footprint for a horn rotor.You need room for the motor, pulley and belt assembly setup that will get the thing to spin at speeds that will sound good. </P>


I have a little Leslie 860 and I think its footprint is a lot bigger than than 18x18. The 860 slants the the horn at an upward angle ( About 30 degree I believe) to reduce the footprint and inside it is a tight fit. It is kind of a pain to work on. But it is about 24+ inches wide with no wasted space.</P>
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[TheAdmiral]

Re: Leslie Horn Assy Dimensions

I measured a Leslie 45 horn section and you could barely do it 18x18 inside dimensions but it would be extremely tight. 20by20 would give a little more room. If you could find a shorter belt then you could get the motor a little closer to the driver but that would be the only way to make it fit easily. You will need 5 inch clearance above the board for the horn and at least 4 inches below it for the standard driver.

[ed allen]

Re: Leslie Horn Assy Dimensions



argh admiral - that is what i am looking for. i understand that 18 inches would a challenge.so the 20 inch dimension and the vertical clearances are just what i was looking for. thanks for the info.</P>


does anyone know where any leslie cabinet drawings can be found? - ed</P>