K145 box

[Mr. Widget]

I have a box close to 5,5 cu ft. The environnement is in my house listening for film, live shows, vinyl and studio recording. And I will have electronic xover, triamplified system.

Will you be using a sub along with the K145s? For a movie playback system I can't imagine the K145s will be satisfactory without VLF help. They are awesome for the 50-800Hz range, but not so much below that.

I would use a 4 cu ft box tuned to 40Hz as a starting point and experiment from there... and I would plan on using a sub or two.


Widget

[turnitdown]

5 cu. ft. tuned to 45Hz with two 4 inch vents 3.68 inches long gives an F3 of 45 Hz according to WinISD

[Mr. Widget]

5 cu. ft. tuned to 45Hz with two 4 inch vents 3.68 inches long gives an F3 of 45 Hz according to WinISD

That seems reasonable. I need to get Bass Box Pro back up and running.


Widget

[grumpy]

Interesting that the "145" series was used by JBL in box sizes ranging from the 4628 (4.5ft3) to the DD55000 (calling it a 150-4H) using something like 8ft3 and tuned low (around 35Hz) for the target market/environment... perhaps not everyone's cup of tea, but effective in its intended range/use.

https://www.audioheritage.org/html/p...bl/everest.htm

[maxserg]

Thanks to all!

[maxserg]

Will you be using a sub along with the K145s? For a movie playback system I can't imagine the K145s will be satisfactory without VLF help. They are awesome for the 50-800Hz range, but not so much below that.I would use a 4 cu ft box tuned to 40Hz as a starting point and experiment from there... and I would plan on using a sub or two.Widget

No sub for now. I know that for films I would need it! But to mate the output of the K145 it should have a hell of output.