i have tried the mundorf AMT on my horn active system crossed at 8K 12db and i really love it , better than my Faital H108 and my SB26 CDC dome . they are expensive as hell but the dipole effect at low level is astonishing 😉
Great thread!
Is there a consensus on 8 ohm vs 4 ohm drivers?
Any thoughts on adding a second 9.5" woofer per channel (bigger box)? Or swapping the paper for the Satori TeXtremes?
Excited to see how this progresses, as I'm going to build a set (once the gurus here have the crossover sorted!). Thank you.
Is there a consensus on 8 ohm vs 4 ohm drivers?
Any thoughts on adding a second 9.5" woofer per channel (bigger box)? Or swapping the paper for the Satori TeXtremes?
Excited to see how this progresses, as I'm going to build a set (once the gurus here have the crossover sorted!). Thank you.
the satori textreme mid will not work as good as fullrange driver as it has a more severe break up than the paper , the mundorf is 4ohm and if you zoom you can see it is writen MR16WPN-8 on some review for the mid driver . also the stepple baffle compensation resistor for a 4 ohm speaker would be much lower than 18ohm for a 4ohm driver ..
in fact the perfect companion for the satori mid would be one or 2 15inch driver in dipole two but it will be a totaly different concept.
This looks like a decent alternative to the Satori midrange and perhaps coupled with a GRS pt 2522 tweeter?
https://sbacoustics.com/product/6-sb16pfcr25-4-paper/
https://www.soundimports.eu/en/grs-pt2522-4.html?
https://sbacoustics.com/product/6-sb16pfcr25-4-paper/
https://www.soundimports.eu/en/grs-pt2522-4.html?
Any further developments? Started this build, but Open baffle for the bi-amped woofs. Only going to use the Satori and Mundorf AMT with a passive.
Do we know for sure if the tweeter attenuation is by the supplied resistor to work in line? I was just considering using L-Pad resistor networks in order to keep the tweet at a constant (nominal) 4 ohms. Much easier to do 1st & 2nd order crossover calcs. This would keep the total frequency response the same independent of how much attenuation. Inline resistors can play havoc as the impedance of the tweet would change thus altering the response ( if inductor and capacitor values stay constant
Do we know for sure if the tweeter attenuation is by the supplied resistor to work in line? I was just considering using L-Pad resistor networks in order to keep the tweet at a constant (nominal) 4 ohms. Much easier to do 1st & 2nd order crossover calcs. This would keep the total frequency response the same independent of how much attenuation. Inline resistors can play havoc as the impedance of the tweet would change thus altering the response ( if inductor and capacitor values stay constant
I asked CHATGPT A.I. the values of the components in the Qualio I.Q. crossover. It gave me a reply based on the information that Qualio supplied to the media and reviewers as to slopes and crossover points. Here is the response given to me. It didn't show the actual schematic (tho I did ask) and it showed "padding" rather than the Mundorf tweeter resistors that the user would insert for attenuation.
Woofer (Low-pass, 2nd-order, 600 Hz):
Midrange (Band-pass, 1st-order, 600 Hz - 8 kHz):
Tweeter (High-pass, 2nd-order, 8 kHz):
Resistors (for attenuation and impedance matching, optional):
Woofer (Low-pass, 2nd-order, 600 Hz):
- Inductor (L1): 2.0 mH
- Capacitor (C1): 33 µF
Midrange (Band-pass, 1st-order, 600 Hz - 8 kHz):
- Capacitor (C2): 12 µF (High-pass at 600 Hz)
- Inductor (L2): 0.25 mH (Low-pass at 8 kHz)
- Resistor (R2): 2 Ω (Connected in series with the midrange driver after the band-pass filter)
Tweeter (High-pass, 2nd-order, 8 kHz):
- Capacitor (C3): 3.3 µF
- Inductor (L3): 0.15 mH
- Resistor (R1): 3 Ω (Connected in series with the tweeter after the high-pass filter)
Resistors (for attenuation and impedance matching, optional):
- R1: 3 Ω (Tweeter padding, in series after high-pass filter)
- R2: 2 Ω (Midrange padding, in series after band-pass filter)