A Multi Entry Horn that can play from 300hz+

The Mid section uses two 4" B&C 4NDF34
The HF Uses a Lavoce DF10.172k

It uses m4 short threaded inserts to attach it all together and m4 bolts. I have attached a picture of the dimensions of the inserts I used.

There is a thread on DIY Audio going into more detail about it including measurements:

https://www.diyaudio.com/community/threads/another-3d-printed-meh.412295/page-2#post-7871737

You will need to print one horn base then two of every other file in the Horn folder.

For the rear chamber you will need six of the rear chamber cap then two of each other file.

To get the rear chamber to fit you will need to cut the little tab off the driver and use a glue gun to seal it. This can be a bit awkward! be warned.

I have attached an image of the raw unprocessed measurments

Some Settings: (In the system I was using so delays and gain can be adjusted)

Unity Low
PK       Fc   809.0 Hz  Gain  -3.30 dB  Q  2.074
LR4 HP   Fc   400.0 Hz 
LR4 LP   Fc    1600 Hz
Gain -10db
Amp Gain -27db
Delay 1.78 ms

Unity High
PK       Fc    2597 Hz  Gain  -7.80 dB  Q  1.001
PK       Fc    4000 Hz  Gain  -3.00 dB  Q  3.000
Gain -10db
-27 Amp Gain
LR4 HP   Fc    1600 Hzb
Delay 1.7 ms