And ugly *** sub... I have to make look better one day. Eminence Delta 15lfa. Closed box. Plate amp driven.
As long as it is functional it is beautiful (you can paint the sub black for extra bass authority 😀)
What x-over freq/slope?
>edit. Is the compression driver connected?
George
What x-over freq/slope?
>edit. Is the compression driver connected?
George
The woofer has no filter.. Just a resistor in parallel. 1.4uF for the compression driver. Sub low pass 90Hz.
That compression driver on top of the sub is not connected. It is the faitalpro hf10ak... Which I want to try.
My first try: a set of desktop open baffles. I think they sound quite fine near range (sitting in front of the computer). 🙂 Further away they sound like crap.
Crossover is around 300 Hz, to the 8 inch woofer. I built it without the woofer before, but, well ... not enough bass without extreme equalizing and excursion of the full range driver.
The last step was to add two horizontal stabilizer bars. I noticed a steep and crass decline of the output level around 90 to 130 Hz, and strong vibrations of the baffle in the same range accordingly, so I figured ... The bars indeed improved the response in that frequency range!
Crossover is around 300 Hz, to the 8 inch woofer. I built it without the woofer before, but, well ... not enough bass without extreme equalizing and excursion of the full range driver.
The last step was to add two horizontal stabilizer bars. I noticed a steep and crass decline of the output level around 90 to 130 Hz, and strong vibrations of the baffle in the same range accordingly, so I figured ... The bars indeed improved the response in that frequency range!
Attachments
Wooden stuff
My design from oak. Sounds better than looks🙂 Unfortunately these days have so little time left from building stuff that only listening i do is for developing purposes.
My design from oak. Sounds better than looks🙂 Unfortunately these days have so little time left from building stuff that only listening i do is for developing purposes.
Interesting what you've done with the lower midrange, how did you hit upon that baffle shape? There are some simulations of a torus baffle in this thread Did Siegfried Linkwitz miss a trick?
Looks very good, so ...
What are the filter frequencies? Probably DSP driven filters?
Hi,
Great! Looks very good, and I can imagine a lot of work went into these speakers. What bass drivers do you use?
All the best
Mattes
The idea was to use separate baffles for each driver, so there is no many options left to be it compact and look good for low midrange. The size is dictated by crossover frequency on one end, and by max SPL on the other end.The driver stops working to just above first dipole peak. DSP takes care about linearity then.
crossovers 170/800/3000hz
No, i don't see the reason for room treatment for this design. Unless you live in a square metal box🙂
Looks great overall. Superbly designed W-frame and lower mid baffle.
Might look even better if the the two upper rectangular planar drivers were replaced with circular cones/ planars mounted in similar elegant flared toroidal baffles as the lower mid. Might not sound as good though? Did you try?
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Info links pasted below from Rytis website Baffle Less Dipole Speakers that may answer lots of questions and are easily missed[FONT=avenir-lt-w01_35-light1475496]:[/FONT]
Unique design and style
All in one system
Dipole all the way 20Hz - 20kHz
Current drive for better sound
Flat frequency and phase
Absolute minimum cabinet colouration
Smooth power response
Optimised crosstalk
Seamless crossover transition
Integrated equal loudness contour
Perfectly tuned - one person project
WOW factor for first time listener
Unique design and style
All in one system
Dipole all the way 20Hz - 20kHz
Current drive for better sound
Flat frequency and phase
Absolute minimum cabinet colouration
Smooth power response
Optimised crosstalk
Seamless crossover transition
Integrated equal loudness contour
Perfectly tuned - one person project
WOW factor for first time listener
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Only one question remains. Lower mid is Peerless 8" HDS, but no 8" models with phase plug are existing. Is it modified?
