Crossed at 1200 hz Peavey made a 1998 SP2-XT with 15" - 3 db over +- 22.5 deg from axis. See the datasheet.
By pinching the back of the cabinet 6", and tricks with folded elastomer sheet inside, Peavey made the - 6 db point of the 15" equipped SP2(2004) 90 deg horizontal 40 deg vertical. Crossed at 1800 hz. See the datasheet.
By pinching the back of the cabinet 6", and tricks with folded elastomer sheet inside, Peavey made the - 6 db point of the 15" equipped SP2(2004) 90 deg horizontal 40 deg vertical. Crossed at 1800 hz. See the datasheet.
Nice work so far. I'm really looking forward to the final result and your impressions of the sound quality.
Thanks, @Rese66, here are my first impressions.
Five days ago I connected the speaker cables to the crossovers and turned the Luxman on. This is the first crossover I've built, so I was excited and nervous.
It worked! The music was flowing nicely. The first thing I noticed was a lack of the upper frequencies. Very surprising, when expecting a hint of harshness. The last horn speaker I owned was the Klipsch Forte III. From my audible memory, they had more treble energy than the Asathor. Maybe my ears needed to adjust to horns again, after a few years with Harbeths and the SEAS A26? I don't know. Then I noticed the dry but authoritative bass response. This is no party speaker, thank god.
Into the small hours of the Saturday night, I moved the speakers to much more toe-in, and things fell into place. Huge difference.
While I was on a mountain trip today, the Asathor was shaking off to some electronica at a decent volume, and now I'm back in the listening position spinning some vinyl; Motorpsycho, John Martyn, Billy Strings, Dylan, Ryley Walker, Pharoah Sanders, and a whole lot of Zappa. All different - all great. Is it my ears or the speakers that are adjusting? It's hard to tell, but I like what I hear better day by day.
Thanks for creating this speaker.
Here are some photos from the Asathor project: https://flic.kr/s/aHBqjBKgrj
So where are the completed plans , driver list , and crossover diagram.Thanks, @Rese66, here are my first impressions.
Five days ago I connected the speaker cables to the crossovers and turned the Luxman on. This is the first crossover I've built, so I was excited and nervous.
It worked! The music was flowing nicely. The first thing I noticed was a lack of the upper frequencies. Very surprising, when expecting a hint of harshness. The last horn speaker I owned was the Klipsch Forte III. From my audible memory, they had more treble energy than the Asathor. Maybe my ears needed to adjust to horns again, after a few years with Harbeths and the SEAS A26? I don't know. Then I noticed the dry but authoritative bass response. This is no party speaker, thank god.
Into the small hours of the Saturday night, I moved the speakers to much more toe-in, and things fell into place. Huge difference.
While I was on a mountain trip today, the Asathor was shaking off to some electronica at a decent volume, and now I'm back in the listening position spinning some vinyl; Motorpsycho, John Martyn, Billy Strings, Dylan, Ryley Walker, Pharoah Sanders, and a whole lot of Zappa. All different - all great. Is it my ears or the speakers that are adjusting? It's hard to tell, but I like what I hear better day by day.
Thanks for creating this speaker.
Here are some photos from the Asathor project: https://flic.kr/s/aHBqjBKgrj
View attachment 1362100
Those looks like the perfect music listening home pair of cabinets.
So they are very neutral right? No hyped up bass nor harsh ear bleeding treble.
Since you´re obviously too lazy to read the thread from #1,So where are the completed plans , driver list , and crossover diagram.
I "silver plattered" it for you 😆
https://www.der-akustische-untergrund.de/speakers/power-hifi-projects/asathor-preiswerte-männerbox/
Maybe you find the crossover to be a little bit unusual.
The woofer has a passive high pass. This reduces the impedance at cabinet resonance frequency and enables the woofer to take more current, giving better low frequency output. This, while protecting it from too low frequency and DC. It gives a very precise low end from a relative small volume.
The woofer has a passive high pass. This reduces the impedance at cabinet resonance frequency and enables the woofer to take more current, giving better low frequency output. This, while protecting it from too low frequency and DC. It gives a very precise low end from a relative small volume.
There are two versions, one with a Peerless / Tymphany CD and one with the easyer to get Lavoce CD. They need different crossover values, the woofers values are identical in both versions. Sound is not much different, both are well behaved speakers with no negative PA attitude.
They can profit from a subwoofer in a larger room, but that is a matter of taste.
They can profit from a subwoofer in a larger room, but that is a matter of taste.
Thanks for the great description and congratulations on the beautiful speaker.Thanks, @Rese66, here are my first impressions.
Five days ago I connected the speaker cables to the crossovers and turned the Luxman on. This is the first crossover I've built, so I was excited and nervous.
It worked! The music was flowing nicely. The first thing I noticed was a lack of the upper frequencies. Very surprising, when expecting a hint of harshness. The last horn speaker I owned was the Klipsch Forte III. From my audible memory, they had more treble energy than the Asathor. Maybe my ears needed to adjust to horns again, after a few years with Harbeths and the SEAS A26? I don't know. Then I noticed the dry but authoritative bass response. This is no party speaker, thank god.
Into the small hours of the Saturday night, I moved the speakers to much more toe-in, and things fell into place. Huge difference.
While I was on a mountain trip today, the Asathor was shaking off to some electronica at a decent volume, and now I'm back in the listening position spinning some vinyl; Motorpsycho, John Martyn, Billy Strings, Dylan, Ryley Walker, Pharoah Sanders, and a whole lot of Zappa. All different - all great. Is it my ears or the speakers that are adjusting? It's hard to tell, but I like what I hear better day by day.
Thanks for creating this speaker.
Here are some photos from the Asathor project: https://flic.kr/s/aHBqjBKgrj
View attachment 1362100
Both the Klipsch and the Seas are not restrained in the high frequencies, so I can well understand that the Asathor sounded a little different at first. The strong directivity from the horn also plays a role, so the Asathor should be oriented towards the listener's ears.
Anyway, I'm very pleased that you are now satisfied and I wish you many more happy hours with it.
These were precisely the development goals. And I think I succeeded quite well.So they are very neutral right? No hyped up bass nor harsh ear bleeding treble.

Yes sir. That's my opinion.So they are very neutral right? No hyped up bass nor harsh ear bleeding treble.
It's Baltic birch plywood leftovers from my SEAS A26 project, with an Osmo oil «Akasie» layer.Beautifull wood grain. Congratulations and enjoy!
Thanks, I will🙂
I would be more than happy if you can guide me for a suitable subwoofer that matches my Asathor.😀There are two versions, one with a Peerless / Tymphany CD and one with the easyer to get Lavoce CD. They need different crossover values, the woofers values are identical in both versions. Sound is not much different, both are well behaved speakers with no negative PA attitude.
They can profit from a subwoofer in a larger room, but that is a matter of taste.
With the resistance of 7R5 I obtained the best result. The high frequencies gained more brightness and clarity, I really like the result obtained.There is.
You could try to reduce the 10 ohm in series with the 172 to 8,2 or 7,5 ohm.
Or add a small amount of "mid-range" by increasing the 6,8µF series capacitor to 7,5 or 8,2 µF.
Both options will give you a precieved impression of a more "airy" presentation.
To avoid going back and forth, I would first try the resistance option. Make a switch on the back for 10R, 9R1, 8R2 & 7R5.
That way, you could change option according to the music, you play 😉
Of course, you could do the same with capacitor values. Have a combination of both.
Thank you.
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I would be more than happy if you can guide me for a suitable subwoofer that matches my Asathor.😀
There are a few "first" things to discuss.
Your listening room.
The kind of music you prefer.
How loud you listen.
How much do you want to spent. You need a matching driver, amp and DSP if you want to match them right. My advice: Never buy plate amps.
Do not expect to get any woofer that matches the level and sensitivity of you speaker. This would lead to a giant sub with some 18" drivers.
Anything smaller than a double 12" or single 15" will be disapointing. You need a serious amp to match the Asathor, no computer SMPS powered mini amp. The Asathor should be high passed around 70-100Hz, otherwise any sub will be a waste of money.
Thanks for the answer!
I will try to explain..
The listening room,not yet in my room 😭
Asathor still 🪑 in my work room.
The kind of music..I listening all kinds of music.
How loud?
Very loud, when I'm alone.
How much do I want to spend?
Suppose 500€.
I don't need any amplifier,I have so many diy amplifiers.
I'm afraid I can guess the answer... don't buy anything yet.🤔
I will try to explain..
The listening room,not yet in my room 😭
Asathor still 🪑 in my work room.
The kind of music..I listening all kinds of music.
How loud?
Very loud, when I'm alone.
How much do I want to spend?
Suppose 500€.
I don't need any amplifier,I have so many diy amplifiers.
I'm afraid I can guess the answer... don't buy anything yet.🤔
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YMMV......Anything smaller than a double 12" or single 15" will be disapointing.
I beg to differ from most of your statements, except the "depending on your listening room". 😉
Behind each of my Asathor´s I have a cheap Argon 10" active sub.
They are cut above 38-40Hz. You´ll only hear them, when they´re powered off, thus missing a bit of the bottom end.
Works perfectly in "MY" living room.
Of course, everybody will have different experiences in theirs.
👆I'm afraid I can guess the answer... don't buy anything yet.🤔
Maybe you should test the Asathor in your room first before you start thinking about a sub.
The Asathor is designed to stand relatively close to the wall. Mine only have about 30cm of space in the back, and it works so well that I can fully enjoy Infected Mushrooms, for example.
When I played Scary Mary, my colleagues fled the room because the bass was too strong for them.
I certainly don't need a subwoofer. But it always depends on the room.
Most people match their bass and subwoofer to their personal situation. "I don't need more bass" translates into "I'm not allowed more", "I don't have the space for it", "I don't want to build any more cabinets" or "I don't have the money."
The Asathor is a speaker that can produce live like levels, except for the bass. With the right high pass and an active sub, in a limited space and distance, it can play as loud as you would expect in a live rock concert. To get the real thumb that hit's you, there has to be some volume of air moved.
You don't need a HT sub, anything below 30 Hz is not important for almost any music style. So the optimum musical sub would be something with a large driver, but no specialized, extreme low reaching, heavy cone subwoofer chassis. PA chassis for 30 Hz are usually 18-21" in size, so a real pro driver may also not be the right thing for you. You have to find the compromise that fit's your bill.
The Asathor is a speaker that can produce live like levels, except for the bass. With the right high pass and an active sub, in a limited space and distance, it can play as loud as you would expect in a live rock concert. To get the real thumb that hit's you, there has to be some volume of air moved.
You don't need a HT sub, anything below 30 Hz is not important for almost any music style. So the optimum musical sub would be something with a large driver, but no specialized, extreme low reaching, heavy cone subwoofer chassis. PA chassis for 30 Hz are usually 18-21" in size, so a real pro driver may also not be the right thing for you. You have to find the compromise that fit's your bill.
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