How were the 3-way loudspeakers invented

" Registration

Hello new users
Due to massive fake registrations, we were forced to close the previous registration procedure.

However, it is still possible to become a registered user in this forum.

Just write us a message with the following content:

- Your desired username
- Your first and last name
- why you want to become a member
- a phone number where we can reach you
- Your place of residence with zip code

If this information is missing, you cannot register in the forum.
So please check whether all information is complete!

The telephone number is only used to check whether you are a real person and will then be deleted from our system.

Our moderation team will then contact you and then create your account.

You can send us your registration request using the contact form (link).
Select "Registration" as the subject and don't forget to give us the above information!

Your DIY-Hifi-Forum team
Results 21 to 40 of 61
  1. 10.06.2017, 20:23#21
    HSG Südbaden
    Registered since
    22.11.2011
    place
    Karlsruhe
    Contributions
    699

    If you are looking for a horn that shines quite broadly in the SHT, then take a look at the Limmer 022.
    It doesn't really get any better from the radiation imho.
    At 75 °, the whole thing is more for medium to long listening distances.

    But I wouldn't look at angles> 30 °.
    At such high frequencies, direct sound dominates anyway.
    The main thing is that the radiation is uniform and the energy frequency response is correct.

  2. 12.06.2017, 20:35#22
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    Hello,

    If you are looking for a horn that shines quite broadly in the SHT, then take a look at the Limmer 022.
    Thanks for the tip, but it is no longer necessary, a decision has been made. Below 3 screenshots with the 2206H, and each MRH83, PH230 and ME20. I apologize for the center dip, the measurement location for the shots was different from the measurement on the DSP, they behaved linearly there, so the dip runs through all 3 shots. The MRH83 made the race again. The ME20 behaves very similarly and sounds similar, although the MRH83 adds a "degree of fineness". I didn't even try the 2118H as a midrange driver, I don't know what could be better than a perhaps more balanced energy frequency response, which I don't think justifies the additional effort.

    And I gained one more insight: the SP12 / 200PA was an extremely good buy, with the best will in the world I couldn't distinguish it from the JBL 2206H in terms of sound. It may be that the JBL can do more in the high-load range, but you don't need that at home. The SP12 is more than enough for home use, even as a subwoofer, if you disconnect it at 60Hz, it makes a little equalized pressure in the 70liter housing, it was also an interesting discovery.

    So, no more 3-way, 2-way like Kalle said and it's good. Just have to think about how it can best be built optically. Maybe you have suggestions.

  3. 12.06.2017, 20:44#23
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    Briefly about the PH230, the expon target drops, in the treble more and more, and you can hear that, it makes good treble, but it suppresses the subtleties. The ME20 is specified as an Expohorn, but behaves more like a CD with the 1747. It doesn't quite get along with the 1747, I can still submit the measurement later, without a DSP it shouldn't be easy, I think passive will be quite time-consuming.

  4. 12.06.2017, 20:57#24
    Own user
    Registered since
    26.07.2016
    place
    5429x
    Contributions
    635

    Small super tweeter to the rear for the diffuse soup and is good

  5. 01.08.2017, 20:40#25
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    Hello,

    I have now chosen the 3-way version. Why? Why not. It's just the want factor that pulled here. The shell is almost finished. Tomorrow some pictures. Are 118cm high, 52cm wide and 37cm deep. Since it was a conversion of an already existing box, the whole thing has become very difficult, tomorrow they will be on the scales, guess an empty weight of over 60kilo. Anyway, had to struggle to get them on the workbench and down again to work on them. Weighs about 85kilo and had to really dig in to pack it. The chassis are JBL 2226H, 2118H and B&C ME20 with only 1430, which fits through the baffle opening. The 1747 is a little too thick. Do not expect a tonal difference on the horn from the two. It will show. The case is like a nesting of MDF and chip, the knock test turns out very nice everywhere, a tick, not tooock.

    Until tomorrow

  6. 02.08.2017, 17:23#26
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    Hello,

    the first pictures, the sides of the front got a bevel, just for optical reasons. The bevel is just under 5cm wide, a simple additional board is sufficient, depending on how close this board is to the router, the angle varies. Here it should be about 20 degrees. It takes about 25 minutes per bevel. lasted, with a sharp cutter it would be even faster :-) The parts are still in the basement, have to wait for the woman, the first boxes that I can't get up from the basement on my own, just too big and heavy. The entire front between the bevels is provided with a removable front covering, similar to the Quadral Titan, the rest of the box is veneered in beech. Let's see if that works out the week. But think the subtleties will be postponed to the next vacation, you don't believe how much longer everything takes with the growing box size.

    The name of the speaker: Nibiru
    Last edited by Atomar; Aug 02, 2017 at 5:36 pm.

  7. 02.08.2017, 23:45#27

  8. 08.08.2017, 21:01#28
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    Hello,

    Could it be that a wide baffle is not the real thing? The whole thing is still an experimental stage, but I'm not enthusiastic. The whole thing is by far not as good as on a narrow baffle and does not sound as good either, the spatiality is rather modest, difficult to locate, the midrange is not as easy to grip as a 2-way bass with a 30 mm bass and tweeter, especially the menhir. I am currently in a good mood to strangle the housing and build the menhir directly. In any case, this one doesn't make a trifle against them. In the meantime I think it's best not to expose a horn to a side baffle, which messes up a lot of what makes a good horn. The 2118h is a very good midbass, but a 2-way gets everything more to the point. All in all so far a big disappointment what all of this brings here.

  9. 09.08.2017, 06:33#29

  10. 09.08.2017, 07:19#30

  11. 09.08.2017, 09:15#31
    Experienced user
    Registered since
    17.11.2013
    Contributions
    692

    Well, to be better than the menhir, you have to put in a lot of effort - I don't imagine that to be trivial.

    I can understand that our TE is now dissatisfied ...

  12. 09.08.2017, 09:29#32

  13. 09.08.2017, 12:13#33

  14. 10.08.2017, 18:59#34
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    What speaks against trying to plug the MT / HT unit into a provisional, narrow test case and place it on the bass?
    In principle nothing, just the optics
    Then let the 2118 run in a narrow (only slightly larger than the chassis diameter) open baffle as a dipole (from 400-500Hz) and then put the horn over it
    My room is relatively small, I've already tried something like that, locating it was almost impossible, too diffuse.
    I can understand that our TE is now dissatisfied ...
    Is there a story on your part?
    See above, the optics ...

    I now simply build the Menhir Compact, in a 45 liter housing on a stand and that's it. She did it the most of all. Add Ripols and you're done.

    Ps: if you need 2 extremely robust housings, you can pick them up here, otherwise they go with the bulky waste. Bass volume approx. 90 liters, midrange volume approx. 20 liters.
    Last edited by Atomar; 08/10/2017 at 7:16 PM.

  15. 10.08.2017, 19:39#35

  16. 10.08.2017, 20:01#36

    Hm, decisions are there to be decided. I briefly sketched a coax box with the SP-308CX and two SPH-200KE in CB that we put in a Manger Zerobox 107 housing. The thing has something! When the stereo is ready, feel free to try it out.

  17. 13.08.2017, 02:01#37
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    When the stereo is ready, feel free to try it out.
    If it can be set up, please
    Today after work I had an idea, still have 2 cases, 27.5 cm wide, 95 cm high, 2 separate volumes. I've now screwed in a SP10A / 302PA and the ME20 with the 1430, as an experiment. Looks like a normal 2-way floorstanding speaker with a square tweeter in the past. The upper chamber in which the Sp10 plays has 30 liters. I'll measure and listen to it tomorrow. Should that be sufficient in terms of level, from 60hz the subs take over, then that could stay that way. The MRH83 and the ME20 behave very similarly, that would be a miniature brain with a foreign horn, or something. well let's see what tomorrow will show up.

    Greetings, Andi

  18. 13.08.2017, 21:56#38
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    Hello,

    The attempt was successful, the narrow 2 way does everything better than the fat Brummer. As a last step, this is compared with the menhir, which of the two makes itself better, which is then built properly. It doesn't have to be a three-way, think kalle had already mentioned that above, on the contrary, the two-way can do it better.

  19. 20.08.2017, 20:28#39
    Efficiency and area
    Registered since
    23.04.2017
    Contributions
    280

    Hello,

    Still playing around with the 2-way, SP10A / 302PA with ME20 and now 1747. That definitely has potential. Even if the driver and horn do not understand each other perfectly, it sounds really very good without any really audible errors. Play around a little with the voting right now. The disadvantage of the small 10 "is its lower dynamics, below 230hz I have to increase it by a whole 10dB in order to get linear without sacrificing the efficiency in the midrange. With the 12, just under 5dB are sufficient. This is also noticeable in the stroke. During the 12 At the same (high) volume and 60Hz 24dB high pass vibrates just noticeably, the 10er already has a powerful stroke. Around 4mm at an estimated 100dB volume. I would not have expected the difference so stark. The bottom line is that you get a GOOD bit louder with the 12er. But those are volume levels that you can't and don't want to drive at home. For PA, I would go straight to 12 "in the top and not use the 10, or limit the lower down so that the sub has to work more.

  20. 20.08.2017, 20:36#40

    Did you want to reinvent the wheel?