Hiya,
I got hold of an RSS390HF-4 pretty cheap (cheap for the uk anyway) and have been looking at box designs. I'm tempted by the micro marty but I notice it calls for the RSS399HO-4 instead of the HF version I have. Is there any downsides to using the HF in the micro marty?
I've got roughly 2ft cu of space to play with, would I be better off with a different design? Sealed maybe
Many thanks,
Andy
I got hold of an RSS390HF-4 pretty cheap (cheap for the uk anyway) and have been looking at box designs. I'm tempted by the micro marty but I notice it calls for the RSS399HO-4 instead of the HF version I have. Is there any downsides to using the HF in the micro marty?
I've got roughly 2ft cu of space to play with, would I be better off with a different design? Sealed maybe
Many thanks,
Andy
Hi Andy,
I don't think that the HF will work with the Microcube, but it models nicely in the Minimarty. The Minimarty is much larger though. The HF wants to be in a sealed box or a very large bass reflex. Have you tried WinISD or Hornresp to model this driver? The HF looks good in a 4cf sealed enclosure with a little stuffing and some EQ.
Regards,
Matt
I don't think that the HF will work with the Microcube, but it models nicely in the Minimarty. The Minimarty is much larger though. The HF wants to be in a sealed box or a very large bass reflex. Have you tried WinISD or Hornresp to model this driver? The HF looks good in a 4cf sealed enclosure with a little stuffing and some EQ.
Regards,
Matt
Thanks Matt,
I put the driver specs into WinISD and it automatically recommends a 5.8cf enclosure although there is very little difference between this enclosure performance (Transfer function magnitude) and a 4cf enclosure so I think I'll run with the 4cf enclosure.
I've read I need to take into account any bracing when determining the volume which is simple enough.
I looked on the Dayton Audio website but haven't managed to find what I should be taking into account for the driver in terms of volume. Do I need to consider the driver?
Many thanks,
Andy
I put the driver specs into WinISD and it automatically recommends a 5.8cf enclosure although there is very little difference between this enclosure performance (Transfer function magnitude) and a 4cf enclosure so I think I'll run with the 4cf enclosure.
I've read I need to take into account any bracing when determining the volume which is simple enough.
I looked on the Dayton Audio website but haven't managed to find what I should be taking into account for the driver in terms of volume. Do I need to consider the driver?
Many thanks,
Andy
In fact, I was being daft and asking questions when I should have just read more and got on with it (hopefully I've got something reasonable but that's part of the fun right!).
So using a mixture of WinISD and BoxyCad2 I get away with a 4.04cf box which will need 2lb stuffing (assuming 0.5lb stuffing / cf means a Qa of 10).
Thinking about an amp which will likely be one of the iNuke range as they are readily available, I've assumed a HPF of 19Hz and added this to the filter in WinISD. When I look at Cone Excursion and playing around with the System input power, I can get away with about 400w before the curve goes above the red line (which I'm assuming is a bad thing). Is 400w the maximum I can push into the driver? Is this RMS or peak? Can it take more for short durations at peak?
I can't imagine I'll be pushing the driver hard.
Many thanks,
Andy
So using a mixture of WinISD and BoxyCad2 I get away with a 4.04cf box which will need 2lb stuffing (assuming 0.5lb stuffing / cf means a Qa of 10).
Thinking about an amp which will likely be one of the iNuke range as they are readily available, I've assumed a HPF of 19Hz and added this to the filter in WinISD. When I look at Cone Excursion and playing around with the System input power, I can get away with about 400w before the curve goes above the red line (which I'm assuming is a bad thing). Is 400w the maximum I can push into the driver? Is this RMS or peak? Can it take more for short durations at peak?
I can't imagine I'll be pushing the driver hard.
Many thanks,
Andy
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