Technical data
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Applications & properties
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Components
Scan-Speak Discovery D2604/833000 with waveguide PCT-300/WG-300 => The tweeter is 3D printed or milled adapter plate connected to the waveguide
Scan-Speak Discovery 22W/4534G00 ⇒ Probably one of the best 8 "bass-midrange drivers on the market
Measurements
Crossover
Cost example (ehighend.de Stand 06 / 2018)
Origin
From Thorsten Felbingers pen (⇒Felbi.at) the concept arose which, so to speak, "A perfect match“To my research into things Baffle geometry, sloping chamfers & my measurements different Tweeter at Waveguide fits. He just lacked the means and possibilities to develop the passive crossover ... Win-win situations are so easily created :).
See also the report at felbi.at
The speaker I'll build soon, I'm absolutely convinced of the thing! However, the Baumappe Felbi without his construction report is hardly to use, because a beautiful appearance as the Cinetor is missing and you hardly recognize anything on the inner model, especially the Erkentniss is missing where which bracing comes from and how the thick front wall is built! Also the material thicknesses are missing. It would be nice if there will be a further improvement. Otherwise, I'm very impressed, even from the switch!
mfg, Nils
Hello Nils
The tree cap has been updated. Thanks for the hint.
Concerning. readability: View the PDF in full size!
Have fun with the discos 🙂
("Bass" in DIY HIFI forum)
Impressions from the “Taxi Race” on March 10.03.2018th, XNUMX in Vienna
("Nical" in DIY HIFI forum)
("Lord of the Rings" in Hifi-Forum)
("Musikhase" in Hifi-Forum)
("Herr_der_ringe" in Hifi-Forum)
Hi Alexander,
can you show a graph where the driver's phases (before, at the crossover point, and after) are displayed, as well as drivers delay (as shown here https://heissmann-acoustics.de/en/dxt-mon-vs-neumann -kh-120a / # comment-485)?
Thanks in advance.
Cheers,
Hi Boban
Here the phase plot:
driver delay:
stay tuned ...
Hi Alex,
Thank you. Looks good 🙂
Cheers,
Hi Alexander,
can you post diagram for driver delay?
Thanks.
BR,
Hi Boban
Here you are:
Best regards
hello, would have to ask what price class with ner finished box are the disco m comparable? Find two new studio monitors and would like to build them myself to save costs. I'm not at all sure if they would be an improvement. Can't hear a sample anywhere. At the moment I have a pair of Adam f7 because there is simply a lack of resolution and there are other things I don't know / have heard ...
Can it be built with a more standard baffle, like the Cinetor-Evo, without changing the cross-over?
I would not suggest to do that. It would result in a remarkably worse directional behavior.
Best regards
Is there an impedance correction for Suzie Q and Disco M?
Got a small room with a 23 watt push-pull KT88 triode amplifier
Hi Patrick
Yes, it is available for all speakers, on request for the construction folder.
Regards
Is there an impedance correction for Suzie Q and Disco M?
Got a small room with a 23 watt push-pull KT88 triode amplifier.
Hello Patrick
Yes there is!
Hello
Does the disco fair in a simple rectangle?
Thank you
Hello
tremendousness non. Les chanfreins are obligatory.
Hi,
Do the plans include the dimensions for the adapter plate between tweeter and waveguide?
Thanks.
Hello David
Yes, they do. Its a printable 1:1 template.
Best regards
Are there any plans to make this design available on lipperbau.info ?
This is your magnum opus and I would love to build one but my wood work skills are non-existent.
It took a while but now I have finished this wonderful speaker. It was more or less a blind purchase, or rather a purchase without listening to it. The measurements and descriptions from the internet were enough for me to be brave enough to build my first work. A great experience but above all a very excellent speaker that I can fully recommend. Now I would like to tackle the next kit. However, it might not be that easy to find a significantly better speaker.
That pleases me!
thanks for the feedback
In the plans the crossover is on the back of the cabinet. Can it be put on the bottom of the cabinet so the back is clear for binding posts?
Thank You.
Hi there
Feel free to do that!
Best regards
Hi,
Can you tell me the required thickness of the baffle (in order to accommodate the chamfers)?
I have some Paperstone remnants and before I commit the $$ to purchase the plans, I would like to understand if I can utilize this material in the construction.
Thanks
Hi Tom
The front is 38mm. the rest 19mm.
Best regards
Unfortunately the WG-300 is no longer available. So the construction of these boxes is over for now?
Hello Christoph
There will be a 3D printed solution from Heissmann-Acoustics soon!
VG
Any updates on waveguide availability?
I've had the Disco M at home for some time. Voices in particular sound extremely good! It's also worth investing a little in the switch. Btw. Even cheap MKPs can sound good. Eg Arcotronics…..
However, the values of the components should all remain the same. Also the resistance of the coils. Otherwise you will change the vote. The tweeter plays very, very well. It is not for nothing that it is also used a lot at Phonar and by Mr. Lommersum. I connected several capacitors in parallel at the crucial points on the crossover and used a precision resistor in front of the tweeter. Interior wiring made from silver-plated Mil-Spec Teflon cable. Partially twisted... Always use Troels Gravesen. As a connection, laboratory books. Costs 1 each and there isn't much better.
Back to the sound:
Bad recordings “can” start to get annoying….
There is enough bass, especially when placed close to a wall. The speakers can also be sufficiently loud. This is really very good, especially for the size. But you notice when the box is at its end and then turn the control back. The space is really very good. Good recordings actually sound very good.
The speakers also like every genre. From Nirvana to Pink Floyd to Norah Jones...
Only fans of an English tuning might find the speakers sound too “bright”. Can be done by setting up the boxes, space and
but also adapt further measures. The speakers are tuned linearly.
I've heard a lot of comparisons, for example regularly in sound and sound. For the price and for a 2-way, the discos are excellent!
I have one suggestion for improvement. The tweeter in the waveguide would benefit from having its own chamber to shield it from the low-midrange. At higher volumes you can notice vibrations that are not transmitted from the housing to the waveguide but come from the 22W/4534G00.
Greetings Bernhard