Hi Guys,
I am working on a LCR home theatre build (3 way speakers) using pro-audio components.
I am using the Dayton Audio PA255-8 which I hear are very good, I will be wiring 2 of them in each box parallel to give me a 4Ohm load.
My plan is to cross them over at 600hz and I would like to have a tuning frequency of 40hz.
Based on online box design the box should be 3cu/ft (shared space) and port should be 4" diameter and 2.5" length. Can you help me out and confirm is this is correct? Or recommend better design?
The details of the components are attached.
I am working on a LCR home theatre build (3 way speakers) using pro-audio components.
I am using the Dayton Audio PA255-8 which I hear are very good, I will be wiring 2 of them in each box parallel to give me a 4Ohm load.
My plan is to cross them over at 600hz and I would like to have a tuning frequency of 40hz.
Based on online box design the box should be 3cu/ft (shared space) and port should be 4" diameter and 2.5" length. Can you help me out and confirm is this is correct? Or recommend better design?
The details of the components are attached.
Attachments
I’ve got extensive experience with the pa255-8, used it LR2 @ 1500hz in a 2 way, nice all round sound. It excelled on vocal/guitar but just acceptable on piano/drums.
Getting them to work down to 40hz is going to be a task, I could barely get the f3 to 60hz before they ran out out of go.
Maybe with dsp/eq it might be possible.
For the money it’s a nice speaker that really ‘sings’ at higher volumes.
My boxes were 1.8 cubic ft for a single so 3 cubic ft for duals should be about right, I tried a large port and then compared two smaller ones in the same box....it did better with two ports.
Getting them to work down to 40hz is going to be a task, I could barely get the f3 to 60hz before they ran out out of go.
Maybe with dsp/eq it might be possible.
For the money it’s a nice speaker that really ‘sings’ at higher volumes.
My boxes were 1.8 cubic ft for a single so 3 cubic ft for duals should be about right, I tried a large port and then compared two smaller ones in the same box....it did better with two ports.
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Thanks MB for the valuable feedback. I do have EQ in my receiver although putting together a high quality crossover. Will work with dual ports as this has been brought up many times.
Simulation shows 3”x 6” long ports (Two) should get down to 40hz with two drivers in a 3 cu/ft box,
on paper anyhow....in my experience this speaker was bass shy no matter what I did, maybe two together will be the ticket!
on paper anyhow....in my experience this speaker was bass shy no matter what I did, maybe two together will be the ticket!