The best sounding speakers I have built to date work to listener's satisfaction (and also mine) when tuned by ear. They are 4 way actively run speakers with separate cabinets for each section and a 4 way LR analogue crossover. When I tweak the crossover for REW to submit a flat line, I don't like the results as much I like them tweaked by the ear. I can relate and agree to your post.
I’m in that situation now. I built a pair of speakers for the AKfest and finished them the night before the fest. I built simple crossovers with junk I had laying around and love the sound for the last 12 years.
I keep wondering if I should do full blown crossovers but not sure if they would sound any better.
I keep wondering if I should do full blown crossovers but not sure if they would sound any better.
How high are you running the 15?……I have run mine all the way up to 1khz without issue……i have even put a frost order low pass on them with an 8” mid woofer………waaaaay to big a speaker but man did it sound good!For big sound there is a sub with an Mivoc AWX184 in an GHP configuration
The Faital 15PR400 running up to 600 Hz and down to 80 Hz, from there the 18 inch makes the rest down.
This makes so much fun
Last edited:
The 4 x 6,5 inch woofers are not produced anymore, it are the Sonic 60/120 with a styrophome dome and long excusion. The Fs is about 30 Hz. I tried the dome midrange Dynaudio D54 as open baffle but did not like the results. The opening on the back is a round vent and the sound does not come out well dispersed. Beside that, the soundstage is already wide and deep but i will test it with a second backfiring planar tweeter this year.
Last edited by a moderator:
amazing effort love the way you've managed to make the felt look modern and like a high end commercial product
A little 3d printed, epoxy filled HiVi Research (Swans) project. D5.4 and X1-II. Kept component count low, but result is a not so great reverse-null. Didn't bother attenuating the top end of the tweeter.
Thoughts - The woofer is a nice little unit that performs really well, but may be priced a bit high. Not sure I like the Swans logo. The tweeter leaves something to be desired due to the increasing high end that I didn't want to pad down (see comment above). It does look cool though and performance is decent. Side note: HiVi's spec sheet for the tweeter doesn't show the rise, so it may be my baffle shape. I did test an SB26STAC in it's place and it does not exhibit the rise the X1 does, but ultimately chose the X1 just because I wanted to use a different driver and again, I thought it looked cool. In this case, I followed form over function.
Thoughts - The woofer is a nice little unit that performs really well, but may be priced a bit high. Not sure I like the Swans logo. The tweeter leaves something to be desired due to the increasing high end that I didn't want to pad down (see comment above). It does look cool though and performance is decent. Side note: HiVi's spec sheet for the tweeter doesn't show the rise, so it may be my baffle shape. I did test an SB26STAC in it's place and it does not exhibit the rise the X1 does, but ultimately chose the X1 just because I wanted to use a different driver and again, I thought it looked cool. In this case, I followed form over function.
Attachments
@djn - there is definitely content into the 50Hz range and are okay for "fullrange" listening if there is not a lot of content in the subwoofer frequency ranges. A subwoofer is always nice to add in. They play pretty loud, but distortion figures start rising below 80Hz-ish. Xmax on the D5.4 is listed as 3.5mm, so the drivers themselves are pretty limited. It's a good pair for a smaller room or office. They could do well in a larger room, but need to be highpassed in that case.
It's the heritage from knocking off vintage Dynaudio drivers, nowadays made with smaller mods to the original.
Hi all,
after some back and forth of testing with different setups in the only room i have to listen to music i have abandoned the huge construction posted earlier here:
https://www.diyaudio.com/community/threads/ultimate-open-baffle-gallery.123512/post-7393996 and come to some evaluation of what is useable when the goal is to keep the open baffle as small as possible.
Here my setup:
ROON Server -> Pro-Ject Stream Box S2 Ultra -> miniDSP 2X4 HD as DAC with USB Input and Subwoofer Digital Active Crossover and Hypex FA123 Plate Amps for the high Woofer the mid horn and the super-tweeter.
Here the pics:
Setup of the active crossover has been done in the first place to avoid loud chirp noise from the CLIO measurement equipment only with my ears, here:
Lower woofer LP 70 Hz BW2
Higher woofer HP 20 Hz LP 350 Hz CH1 Hypex FA123
Mid horn HP 400 Hz Bessel 2nd order LP 6000 Hz Bessel 2nd order CH2 Hypex FA123
Super-tweeter Visaton TL16H HP 6000 Bessel 2nd order CH3 Hypex FA123
to get some decent low frequency effects out of the very small open baffle i needed to cut off the lower woofer very deep with 70 Hz and to rise the volume about +9 dB to the high mounted woofer, that's the trade off of the very small baffle.
Here the chassis:
low mounted woofer Celestion FTR15-3070C
high mounted woofer Celestion FTR15-3070C
midrange horn Eighteensound XT1464 with B&C DCM14-16 driver
super-tweeter Visaton TL16H
so far - so good, Stefano
after some back and forth of testing with different setups in the only room i have to listen to music i have abandoned the huge construction posted earlier here:
https://www.diyaudio.com/community/threads/ultimate-open-baffle-gallery.123512/post-7393996 and come to some evaluation of what is useable when the goal is to keep the open baffle as small as possible.
Here my setup:
ROON Server -> Pro-Ject Stream Box S2 Ultra -> miniDSP 2X4 HD as DAC with USB Input and Subwoofer Digital Active Crossover and Hypex FA123 Plate Amps for the high Woofer the mid horn and the super-tweeter.
Here the pics:
Setup of the active crossover has been done in the first place to avoid loud chirp noise from the CLIO measurement equipment only with my ears, here:
Lower woofer LP 70 Hz BW2
Higher woofer HP 20 Hz LP 350 Hz CH1 Hypex FA123
Mid horn HP 400 Hz Bessel 2nd order LP 6000 Hz Bessel 2nd order CH2 Hypex FA123
Super-tweeter Visaton TL16H HP 6000 Bessel 2nd order CH3 Hypex FA123
to get some decent low frequency effects out of the very small open baffle i needed to cut off the lower woofer very deep with 70 Hz and to rise the volume about +9 dB to the high mounted woofer, that's the trade off of the very small baffle.
Here the chassis:
low mounted woofer Celestion FTR15-3070C
high mounted woofer Celestion FTR15-3070C
midrange horn Eighteensound XT1464 with B&C DCM14-16 driver
super-tweeter Visaton TL16H
so far - so good, Stefano
Hi folks,
continuation of this here - https://www.diyaudio.com/community/threads/system-pictures-description.23208/post-7494338
Some more listening tests, used Roon DSP to correct some nasal sound coming from the midrange horn, sounds better now, speaker setup is absolutely required since my desk in the home office is far outside the optimal listening position with the left box much closer than the right one
continuation of this here - https://www.diyaudio.com/community/threads/system-pictures-description.23208/post-7494338
Some more listening tests, used Roon DSP to correct some nasal sound coming from the midrange horn, sounds better now, speaker setup is absolutely required since my desk in the home office is far outside the optimal listening position with the left box much closer than the right one
Hi all,
this is my current horn loaded 3 ways system. It is composed of RCF LF21X451 + "Myhorn", JBL 2441 + 2360A, JBL2404H
"Myhorn" is self made, composed of the main box (100 x 90 x 62) and a shelf supporting audio devices (250 x 36 x 62) only one side. It is still under construction, was designed with help of Ansys (still learning the acoustic module) and Hornresp; mesurements with REW
the measurement and hearing are very nice. The lower frequency going down to 20 Hz. The two horns perfectly matching in tone.
It is compression + bass reflex with 4 different length tubes (PVC pressure 4.5 mm thickness). There is a commercial phase plug increasing compression ± from 4 to 5. The horn curve is made of 2 x 9 mm panels. It is nor finished (see pics)
I could check that it is possible to avoid peak resonance with the different tubes 'easy to change)Active filters with 3 amplifiers and adjustment of levels (100 - 111 -105 dB 1W 1m).
The amplifiers will be raplaced by tubes, the 1st an ARC D115 (half 6550 tubes removed speakers connected to half they rated Z)
this is my current horn loaded 3 ways system. It is composed of RCF LF21X451 + "Myhorn", JBL 2441 + 2360A, JBL2404H
"Myhorn" is self made, composed of the main box (100 x 90 x 62) and a shelf supporting audio devices (250 x 36 x 62) only one side. It is still under construction, was designed with help of Ansys (still learning the acoustic module) and Hornresp; mesurements with REW
the measurement and hearing are very nice. The lower frequency going down to 20 Hz. The two horns perfectly matching in tone.
It is compression + bass reflex with 4 different length tubes (PVC pressure 4.5 mm thickness). There is a commercial phase plug increasing compression ± from 4 to 5. The horn curve is made of 2 x 9 mm panels. It is nor finished (see pics
)I could check that it is possible to avoid peak resonance with the different tubes 'easy to change)Active filters with 3 amplifiers and adjustment of levels (100 - 111 -105 dB 1W 1m).
The amplifiers will be raplaced by tubes, the 1st an ARC D115 (half 6550 tubes removed speakers connected to half they rated Z)