Contents
- Cabinet
- Subwoofer Dipole
- Woofer Dipole
- Lo-Midrange Dipole
- Hi-Midrange Dipole
- Tweeter Dipole concept 1 – wide tweeter baffle
- Tweeter Dipole concept 2 – small tweeter baffle
- Comparison dipole tweeter with wide versus small baffle
- Crossover filter
- Tweeter Dipole in inverse Hi-Midrange Tweeter baffle
Cabinet
Hi-Midrange and Tweeter baffle concept 1 – wide tweeter baffle
Baffle is 130 mm wide for both hi-mid and tweeter and mounted in the hollow baffle
In Leap a baffle with W x H x D = 130 x 700 x 35 mm is used (green baffle in the picture).
Hi-Midrange and Tweeter baffle concept 2 – small tweeter baffle
Baffle is 130 mm wide for the hi-mid and 78 mm wide for the tweeter and mounted in the hollow baffle
In Leap a baffle of W x H x D = 130 x 700 x 35 mm is used for the hi-mid (green baffle in the left picture).
In Leap a baffle of W x H x D = 78 x 700 x 35 mm is used for the tweeter (green baffle in the right picture).
Subwoofer Dipole
SPL on axis and horizontal off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Horizontal polar diagram 10 – 80 – 160 – 320 – 640 – 1280 Hz at 3m in full sphere
SPL on axis and vertical off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Vertical polar diagram 10 – 80 – 160 – 320 – 640 – 1280 at 3m in full sphere
SPL on axis and the power at 3m, 2.83 Vrms in full sphere
Directivity Index at 3m in full sphere
Woofer Dipole
Simulation in Leap on a baffle W x H = 700 x 700 mm. Transducer model AE Dipole 18-D16 made with datasheet TSP parameters.
SPL on axis and horizontal off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Horizontal polar diagram 10 – 80 – 160 – 320 – 640 – 1280 Hz at 3m in full sphere
SPL on axis and vertical off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
The same as the horizontal curves.
Vertical polar diagram 10 – 80 – 160 – 320 – 640 – 1280 at 3m in full sphere
The same as the horizontal curves.
SPL on axis and the power at 3m, 2.83 Vrms in full sphere
Directivity Index at 3m in full sphere
Lo – Midrange Dipole
Simulation in Leap on a baffle conform the actual baffle of the speaker. Some extension is added to the baffle height, because the hi-midrange and woofer baffle are above and below this lo-mid baffle. Transducer model Supravox 215-RTF-64 is made with datasheet TSP, SPL and impedance parameters.
SPL on axis and horizontal off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Horizontal polar diagram 80 – 160 – 320 – 640 – 1280 – 2560 Hz at 3m in full sphere
SPL on axis and vertical off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Vertical polar diagram 80 – 160 – 320 – 640 – 1280 – 2560 at 3m in full sphere
SPL on axis and the power at 3m, 2.83 Vrms in full sphere
Directivity Index at 3m in full sphere
Hi – Midrange Dipole
Simulation in Leap on a baffle W x H x D = 130 x 700 x 35 mm.
SPL on axis and horizontal off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Horizontal polar diagram 640 – 1280 – 2560 – 3840 – 5120 – 6400 Hz at 3m in full sphere
SPL on axis and vertical off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Vertical polar diagram 640 – 1280 – 2560 – 3840 – 5120 – 6400 Hz at 3m in full sphere
SPL on axis and the power at 3m, 2.83 Vrms in full sphere
Directivity Index at 3m in full sphere
Tweeter Dipole Concept 1 – wide tweeter baffle
Simulation in Leap on a baffle W x H x D = 130 x 700 x 35 mm.
Two tweeters, one at the front and one at the backside.
SPL on axis and horizontal off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
SPL on axis and horizontal off axis 30 60 degrees at 3m, 2.83 Vrms in full sphere
Horizontal polar diagram 1280 – 2560 – 3840 – 5120 – 6400 – 12800 Hz at 3m in full sphere
SPL on axis and vertical off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
SPL on axis and vertical off axis 30 60 degrees at 3m, 2.83 Vrms in full sphere
Vertical polar diagram 1280 – 2560 – 3840 – 5120 – 6400 – 12800 Hz at 3m in full sphere
SPL on axis and the power at 3m, 2.83 Vrms in full sphere
Directivity Index at 3m in full sphere
Tweeter Dipole Concept 2 – small tweeter baffle
Simulation in Leap on a baffle W x H x D = 78 x 700 x 35 mm.
Two tweeters, one at the front and one at the backside.
SPL on axis and horizontal off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
SPL on axis and horizontal off axis 30 60 degrees at 3m, 2.83 Vrms in full sphere
Horizontal polar diagram 1280 – 2560 – 3840 – 5120 – 6400 – 12800 Hz at 3m in full sphere
SPL on axis and vertical off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
SPL on axis and vertical off axis 30 60 degrees at 3m, 2.83 Vrms in full sphere
Vertical polar diagram 1280 – 2560 – 3840 – 5120 – 6400 – 12800 Hz at 3m in full sphere
SPL on axis and the power at 3m, 2.83 Vrms in full sphere
Directivity Index at 3m in full sphere
Comparison dipole tweeter with wide versus small baffle
Power comparison
DI comparison
Crossover filter
Crossover frequencies choice
DI of the main speaker transducers
Interpreting the value and the overlap of the DI of the four main speaker transducers, the crossover frequencies for the total system inclusive the subwoofer can be chosen at 70 – 280 – 1120 and 4480 Hz.
Tweeter Dipole in inverse Hi-Midrange Tweeter Baffle
Baffle
Simulation in Leap on a baffle W x H x D = 78 x 700 x 35 mm.
Two tweeters, one at the front and one at the backside.
SPL on axis and horizontal off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Horizontal polar diagram 1280 – 2560 – 3840 – 5120 – 6400 – 12800 Hz at 3m in full sphere
SPL on axis and vertical off axis 15 30 45 60 75 degrees at 3m, 2.83 Vrms in full sphere
Vertical polar diagram 1280 – 2560 – 3840 – 5120 – 6400 – 12800 Hz at 3m in full sphere
SPL on axis and the power at 3m, 2.83 Vrms in full sphere
Directivity Index at 3m in full sphere
