To save on inductors I’m looking at a cascading filter. I’m am also debating if I want a high pass or just use the enclosure. Electrically it would look like a .5 mid with a .5 woofer. All in my head. This maybe impractical once I start modeling.
Cascading filters are definitely allowed. I figured you were looking at using box rolloff. I guess if it complies with the xover points, it is still 12dB slopes.
Quick question for Ben... is having two piece enclosures allowed if their sum net total volume is at or below the 1.5 ft^3 limit. I'm only asking because it is much easier to fit 2 bass bins and 2 top boxes in a sedan like I have. I don't believe there would be any sonic advantages. Just easier to load/unload/fit in a typical sized car.
Assuming 'mid' must be in some passband, like no 2 way with natural F3 of 50-70hz then just adding a sub at 100 or lower hz - which would seem the easiest route with 60-150*16 . Or not using low reaching horn loaded driver or dipole (heil or other amt) that would be like hey, 1khz * 16 etc - thus some stop band, acoustic or electrical, before 10k?
Of course have to test the boundaries.... know the spirit is to balance a mid/mid-pair to stretch 4 octaves where assisted on each side - err, passband'ed naturally or electrically.
Maybe Nick's array will be ready, guessing long term means within a year heheh
@traw said:
Assuming 'mid' must be in some passband, like no 2 way with natural F3 of 50-70hz then just adding a sub at 100 or lower hz - which would seem the easiest route with 60-150*16 . Or not using low reaching horn loaded driver or dipole (heil or other amt) that would be like hey, 1khz * 16 etc - thus some stop band, acoustic or electrical, before 10k?
Of course have to test the boundaries.... know the spirit is to balance a mid/mid-pair to stretch 4 octaves where assisted on each side - err, passband'ed naturally or electrically.
Maybe Nick's array will be ready, guessing long term means within a year heheh
Sounds like using natural rolloff is ok? But the themes are usually passive only. Low passing that low would bring it's own challenges. (big values, and the resonance peaks wreaking havoc)
If the natural rolloff gets the xover point accomplished as described, it is -12sB/Oct. The impedance however could be super low without a filter in place.
Yes, LP very low causes other issues for sure.
Comments
To save on inductors I’m looking at a cascading filter. I’m am also debating if I want a high pass or just use the enclosure. Electrically it would look like a .5 mid with a .5 woofer. All in my head. This maybe impractical once I start modeling.
Cascading filters are definitely allowed. I figured you were looking at using box rolloff. I guess if it complies with the xover points, it is still 12dB slopes.
InDIYana Event Website
John, just use any poly cap with this parallel 0.01 ohm resistor and call it an LR 0.01 slope.
https://www.digikey.com/en/products/detail/stackpole-electronics-inc/MR5FT10L0/1650262
Aw man this is gonn' be wild! juices flowin!
Quick question for Ben... is having two piece enclosures allowed if their sum net total volume is at or below the 1.5 ft^3 limit. I'm only asking because it is much easier to fit 2 bass bins and 2 top boxes in a sedan like I have. I don't believe there would be any sonic advantages. Just easier to load/unload/fit in a typical sized car.
Sure, I would likely do the same.
InDIYana Event Website
Assuming 'mid' must be in some passband, like no 2 way with natural F3 of 50-70hz then just adding a sub at 100 or lower hz - which would seem the easiest route with 60-150*16 . Or not using low reaching horn loaded driver or dipole (heil or other amt) that would be like hey, 1khz * 16 etc - thus some stop band, acoustic or electrical, before 10k?
Of course have to test the boundaries.... know the spirit is to balance a mid/mid-pair to stretch 4 octaves where assisted on each side - err, passband'ed naturally or electrically.
Maybe Nick's array will be ready, guessing long term means within a year heheh
Thanks for the quick reply Ben!
No problem! This heat is awful, haven't done much outside for about a week now.
InDIYana Event Website
Sounds like using natural rolloff is ok? But the themes are usually passive only. Low passing that low would bring it's own challenges. (big values, and the resonance peaks wreaking havoc)
If the natural rolloff gets the xover point accomplished as described, it is -12sB/Oct. The impedance however could be super low without a filter in place.
Yes, LP very low causes other issues for sure.
InDIYana Event Website