'isobaric' schooling help please.

[bjorno]

Hi,

Discard the picture in post#4 as containing an apples to orange comparison.
The HR simulation uses 4 drivers ,i.e. two separate isobaric configurations but the MJK only one. =
A new corrected picture: The first one of the submitted.

b

[gafhenderson]

Originally Posted by tb46

Hi,

Here is my try at this driver in WinISD: BP6 Isobaric. Would you cut wood from this level of data?

Regards,

gotta start somewhere really. just got to decide where to go for the initial plunge.

Originally Posted by revboden

ok, I extrapolated the missing TS parameters using hornresp and BBP so these are just guesses. All the graphs are two drivers in parallel for a 4ohm load using 100w. The red line is modeled as isobaric to show the difference from standard in efficiency but if the two drivers were used normally the red line would be the same just +3db.

Surprisingly the infinite baffle model was the best. (that's the red line)

guess that'd be its automotive heritage showing through? tbh they didn't look as bad as i was expecting. what are the down sides to open baffle apart from the lack of driver protection? makes construction fairly easy, but what about room placement?

[bjorno]

gafhenderson

Originally Posted by tb46 View Post
Hi,

Here is my try at this driver in WinISD: BP6 Isobaric. Would you cut wood from this level of data?

Regards,
gotta start somewhere really. just got to decide where to go for the initial plunge.

Quote:
Originally Posted by revboden View Post
ok, I extrapolated the missing TS parameters using hornresp and BBP so these are just guesses. All the graphs are two drivers in parallel for a 4ohm load using 100w. The red line is modeled as isobaric to show the difference from standard in efficiency but if the two drivers were used normally the red line would be the same just +3db.

Surprisingly the infinite baffle model was the best. (that's the red line)
guess that'd be its automotive heritage showing through? tbh they didn't look as bad as i was expecting. what are the down sides to open baffle apart from the lack of driver protection? makes construction fairly easy, but what about room placement?

Hi,

IB (Infinity Baffle) would be a good idea if you mount your drivers in-wall and ensure a large rear volume.. but also an OB (Open Baffle) system might be an application to consider:

b