Hello!
Can anyone tell me what the low frequency slope is for a backloaded horn? Is it - in general - a 'clean' slope so that I can take use of the natural roll-off for adding subwoofers?
Thanks!
Can anyone tell me what the low frequency slope is for a backloaded horn? Is it - in general - a 'clean' slope so that I can take use of the natural roll-off for adding subwoofers?
Thanks!
Hi,
not being an expert in your field, I'm tempted to say the bass roll off will be determined by 1. the horn mouth area, 2. the horn flare rate, 3. the T/S parameters, notably Fs.
2. & 3. could be quite a smooth roll off. However mouth area or lack of it at low frequency gives rise to mild/severe ripples in the response before finally rolling off.
As 1. & 2. come into play the driver starts to move away from resistive horn loading and starts to becomes an open baffle with very little acoustic loading. Continued signal below the natural passband of the horn will seriously overdrive the speaker and risk damage as well as severe distortion.
Hopes this helps,
Can I have some feed back on the accuracy or otherwise of my statements?
not being an expert in your field, I'm tempted to say the bass roll off will be determined by 1. the horn mouth area, 2. the horn flare rate, 3. the T/S parameters, notably Fs.
2. & 3. could be quite a smooth roll off. However mouth area or lack of it at low frequency gives rise to mild/severe ripples in the response before finally rolling off.
As 1. & 2. come into play the driver starts to move away from resistive horn loading and starts to becomes an open baffle with very little acoustic loading. Continued signal below the natural passband of the horn will seriously overdrive the speaker and risk damage as well as severe distortion.
Hopes this helps,
Can I have some feed back on the accuracy or otherwise of my statements?
Hi,
That's a start😀
Normally this horn (Viech with Beyma 8AG/N) goes to around 60hz but I've stuffed large amounts of whool right behind the speaker to flatten a high-midrange peak (coming from the face of the driver; yes, this seems to work very well😉 ) - Downside is that there's no bass left; in comes the subwoofer! I don't experience any peaks in the bass but after all there's really not much bass left
Greetings,
Simon
That's a start😀
Normally this horn (Viech with Beyma 8AG/N) goes to around 60hz but I've stuffed large amounts of whool right behind the speaker to flatten a high-midrange peak (coming from the face of the driver; yes, this seems to work very well😉 ) - Downside is that there's no bass left; in comes the subwoofer! I don't experience any peaks in the bass but after all there's really not much bass left
Greetings,
Simon
- Status
- Not open for further replies.