Hello,
I have been using the horn folding spreadsheets on diysubwoofers.org to design a tapped horn subwoofer that would fit my particular use case.
Specifically, I'm looking to make a TH that is small enough for permanent residence in my bedroom, but in a pinch can put out enough SPL to occasionally bring out for BBQs and small events (<50 people, anything larger i'd rent). I'd say 90% use would be in bedroom, but for the other 10% would be paired with a single QSC CP12 (HPF @ 80hz), so there's not much needed to outrun the top.
Flat to 50hz or 45 if possible.
Design:
I believe i've some up with something that sims well, but i am new to hornresp and brian's spreadsheets, so i would appreciate if anyone can tell me if there's anything i've overlooked.
I decided to go with the SS15 style fold over the easier to build THAM15. For my bedroom, it's preferable to increase the horn length by adding height rather than depth.
I liked the size of of the POC#3 on diysubwoofers.org, so i decided use the spreadsheets to modify that footprint for a 15" driver.
Would be loaded with Oberton 15XB1200, no particular reason other than it simmed well. I am open to other drivers as well. Thinking of powering and HP/LP with Behringer NX3000DSP
I have been using the horn folding spreadsheets on diysubwoofers.org to design a tapped horn subwoofer that would fit my particular use case.
Specifically, I'm looking to make a TH that is small enough for permanent residence in my bedroom, but in a pinch can put out enough SPL to occasionally bring out for BBQs and small events (<50 people, anything larger i'd rent). I'd say 90% use would be in bedroom, but for the other 10% would be paired with a single QSC CP12 (HPF @ 80hz), so there's not much needed to outrun the top.
Flat to 50hz or 45 if possible.
Design:
I believe i've some up with something that sims well, but i am new to hornresp and brian's spreadsheets, so i would appreciate if anyone can tell me if there's anything i've overlooked.
I decided to go with the SS15 style fold over the easier to build THAM15. For my bedroom, it's preferable to increase the horn length by adding height rather than depth.
I liked the size of of the POC#3 on diysubwoofers.org, so i decided use the spreadsheets to modify that footprint for a 15" driver.
Would be loaded with Oberton 15XB1200, no particular reason other than it simmed well. I am open to other drivers as well. Thinking of powering and HP/LP with Behringer NX3000DSP
Attachments
Assuming the driver's parameters in Hornresp are correct, I don't see any reason why that won't work. However the TH does seem a bit undersized - one of the main aims of a TH is to reduce or eliminate that "notch" in the upper bass response, and if it's still there in the sim that means that the mouth isn't large enough and the taper needs to be adjusted.
If you're trying to get the best results in a box that size, try a shelf-vented box (BOXPLAN-VBSLOT) or MLTL (BOXPLAN-MLTL1) alignment instead to see how it compares in output to your sim. Overall response might be just a few dB lower, but you should end up with a much smoother response into the midbass region.
If you're trying to get the best results in a box that size, try a shelf-vented box (BOXPLAN-VBSLOT) or MLTL (BOXPLAN-MLTL1) alignment instead to see how it compares in output to your sim. Overall response might be just a few dB lower, but you should end up with a much smoother response into the midbass region.
Hmm not sure why it's not listed on that particular website, but elsewhere i've seen its listed as 450W/channel @ 8 ohms. Also wouldn't running it bridged give a load of 4ohms? Not that i'd need that full power.
Thanks Brian, I will experiment with a larger mouth opening and try to sim out similarly sized vented and MLTL boxes. Will share my findings.
My biggest gratitudes for making these excel sheets available, it's made the design process much easier to understand and optimize! 🙂