Ultra High Frequency tweeter. What is used past 10khz in TL1 ( super tweeter). The horn used (18sound) could be used without penalty by itself up to 16/18khz ( iirc) with a 'good' compression driver.
Jenzen ( or whatever boutique brands's capacitors, inductors or whatever passive components)= $$$$$
Jenzen ( or whatever boutique brands's capacitors, inductors or whatever passive components)= $$$$$
I can do it like this, I have three amplifiers, 2 pairs of 200W stereo and one 100W
I would not like to make them smaller, I believe that the search should be for audible excellence.
Thanks for helping me Krivium!
You are welcome but i think all members answering you are trying to help. 😉
The drawback i talked about with 'big' horn loaded loudspeakers in 'small' rooms: if 2 or more horns are used ( on same loudspeaker example given ( eg) for mid and high) then you might need a bit ( or a lot!) of stepback for the wavefronts to merge as one source. This can be a real issue. ( in other words, your listening position will need more distance to your loudspeakers).
With a TL1 i would not be concerned by this though.
The drawback i talked about with 'big' horn loaded loudspeakers in 'small' rooms: if 2 or more horns are used ( on same loudspeaker example given ( eg) for mid and high) then you might need a bit ( or a lot!) of stepback for the wavefronts to merge as one source. This can be a real issue. ( in other words, your listening position will need more distance to your loudspeakers).
With a TL1 i would not be concerned by this though.
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Krivium Thank you so much for introducing me to this wonderful project. I believe my searches are locked. I will organize myself financially to start this project, it will take a few months but this is the way to go.
Check this one out. Better for small rooms, as the drivers are close together and cross low enough to let the sound fields merge at moderate distance. Plus the drivers and horn are OK for domestic use.
Do you have any information or documentation on soundfields merging at a certain distance and what this means for a speaker?
Are you talking to me? I've never delved into this subject, but I believe it's like when we throw two stones into the lake, the links grow and merge into a single he, the farther one stone from the other the longer the time for the event.
I think is is a great analogy and you grasped the concept.
Of course there is some subtilities about this though. 😉
Well, i don't know if you already answered the question but what size is the room you plan to use them?
And the distance your listening position will be from loudspeakers?
Markbakk's remark about driver distance between them is valid so if you could give the info i asked it could help define if it is worth pursuing in the TL1 way or not.
That said, as i used ( and still use even if my loudspeakers are not horn loaded but big box and medium efficiency) this kind of loudspeakers i think what appeal people to them is not the way they behave from a directivity pov ( radiating behaviour of loudspeakers) but more related to the dynamic and membranne area.
The TL1 seems much well behaved from a directivity pov than the end 70's JBL godzilla's. The 18" is crossed in a range where is still radiate omni, the 10" is then crossed over around 1,5khz where it'll be around 90* directivity to the 1086 which already have control on directivity at same covering angle. At 10khz it should still have control ( it is specified up to 12khz). After that well... it'll depend of tweeter used.
What you could gain wrt initial design by using dsp is to be able to time align drivers, but i'm not sure it would matter this much..
Of course there is some subtilities about this though. 😉
Well, i don't know if you already answered the question but what size is the room you plan to use them?
And the distance your listening position will be from loudspeakers?
Markbakk's remark about driver distance between them is valid so if you could give the info i asked it could help define if it is worth pursuing in the TL1 way or not.
That said, as i used ( and still use even if my loudspeakers are not horn loaded but big box and medium efficiency) this kind of loudspeakers i think what appeal people to them is not the way they behave from a directivity pov ( radiating behaviour of loudspeakers) but more related to the dynamic and membranne area.
The TL1 seems much well behaved from a directivity pov than the end 70's JBL godzilla's. The 18" is crossed in a range where is still radiate omni, the 10" is then crossed over around 1,5khz where it'll be around 90* directivity to the 1086 which already have control on directivity at same covering angle. At 10khz it should still have control ( it is specified up to 12khz). After that well... it'll depend of tweeter used.
What you could gain wrt initial design by using dsp is to be able to time align drivers, but i'm not sure it would matter this much..
Not really. There's not going to be a whole lot of difference in the XT above 12k5 irrespective as 25.4mm is 1 WL at 13k5 so the throat diameter is going to determine it to the largest extent. Still no need, directivity or otherwise for the Fostex.
Well i tend to agree with you Brett. I have no experience with the 18sound xt and from what i've seen it could be used way higher.
I was surprised to look at xt datasheet and see it stoped past 12,5k.
I was surprised to look at xt datasheet and see it stoped past 12,5k.
I have some and they work fine higher up to 18k or so, it's just that 18S won't specify directivity above 12k5, but I'm not really seeing it's relevance in a domestic size room.
Allen,
Well when the horn systems i've heard didn't have enough stepback there was feeling sound emerging from different places in space.
The system i think about used horns which could have not be optimised from a directivity pov. I already talked about it in the past and it had other strange flaws to me.
Anyway it might be i'm very sensitive to this vertical mismatch hence my bias to coax.
Brett,
Why people want high efficiency loudspeaker at home? I can say for myself, for others... ?
Well when the horn systems i've heard didn't have enough stepback there was feeling sound emerging from different places in space.
The system i think about used horns which could have not be optimised from a directivity pov. I already talked about it in the past and it had other strange flaws to me.
Anyway it might be i'm very sensitive to this vertical mismatch hence my bias to coax.
Brett,
Why people want high efficiency loudspeaker at home? I can say for myself, for others... ?
So nothing to suggest it is a result of soundfields merging.. Some complain of it but it's an unusual explanation without good reason or proof.
I can only answer for myself. There is a feeling of ease and naturalness in the dynamics that LE systems never have in my experience. I describe LE systems as constipated sounding.
I won't go back to LE unless it's for nearfield and only then because HE tends to be a larger system.
I like coaxes too. I've had many over the years but the MEHs are the best.
When I had my Khorns, no one commented on the very large path length differences between the horn sections. I didn't make anything of it myself until I got my first DSP in 2002 and went active. It's an obvious noticeable difference when shown, but otherwise not all that obvious.
Based on this experience, my new midbass horns which have an axial length of 2m will be delayed correctly for music, but not for movies as the video will distract enough.
Meant to add in the last post, that midbass and midrange horns being bandpass have lower HD. Much less of an issue at HF.
Well maybe you are right. From my 'sound systems' years this is the explanation i ended with.
If you have better or a correct explanation of it i'm always open to be corrected with correct info.
Stop being difficult and just accept people's subjective observations without question. There's a good lad...