Thank you again, you definitely convinced me towards 11ms plus FHXL.
I've seen some FHXL with a triangle deflector behind them, but not so many infos here. Is it used to make the rear wall be part of the horn? To better couple the speaker to the rear wall? What is the benefit and how to implement it?
I've seen some FHXL with a triangle deflector behind them, but not so many infos here. Is it used to make the rear wall be part of the horn? To better couple the speaker to the rear wall? What is the benefit and how to implement it?
The basic deflector, or th edeflector with a stealth woofer in it has not really gotten much traction
I do keep thinking about them and they are a good idea. with a woofer really makes sense for the littliest one.
They are a good idea.
Bascially just a triangular prism. 45° angle works best.
dave
I do keep thinking about them and they are a good idea. with a woofer really makes sense for the littliest one.
They are a good idea.
Bascially just a triangular prism. 45° angle works best.
dave
Thanks, looking at that photo you posted, am I going out of topic asking if implementing a truncated pyramid suprabaffle (http://www.frugal-horn.com/downloads/supraBaffle-appendix-draft.pdf ) would improve the design even more? Will the extra width need some modification on the inner part of the FHXL?
Certainlt supraBaffles can help. Lots of possible shapes.
Ideal would look like a B&W midPod set over the top of the horn, simple, just to make it easy to swap drivers is just an extra bit flush with the edges. I wonder how something derived from the very specifically designed 5 petal flower used as n OB might be interesting.
dave
Ideal would look like a B&W midPod set over the top of the horn, simple, just to make it easy to swap drivers is just an extra bit flush with the edges. I wonder how something derived from the very specifically designed 5 petal flower used as n OB might be interesting.
dave
Thanks, you mean something like this Designing a cabinet for Mark Audio Alpair 7.3 or this Designing a cabinet for Mark Audio Alpair 7.3 ?
It is wonderful, but quite complicated to be realized.
How would it be coupled to the FHXL?
What is the 5 petal flower OB?
It is wonderful, but quite complicated to be realized.
How would it be coupled to the FHXL?
What is the 5 petal flower OB?
I'd say this is what you meant with the B&W midPod into the FH:
6moons audio reviews: Ring Audio FGH 1.4
6moons audio reviews: Ring Audio FGH 1.4
Dave, Chris, Ron and I would have liked it too -unfortunately, Ring Audio failed to acknowledge their box was a Mk1 Frugel-horn with the driver stuck in a sphere on the top. The terms-of-use we clearly specify for commercial use were / are not very onerous, and their attempts at justification, even claiming that they 'exchanged ideas' with us (an euphemism for 'we provided them with plans') did not do them any favours.
Be that as it may, the pod Ring Audio used is OK-ish, but better is the extended taper B&W use like the attached.
Be that as it may, the pod Ring Audio used is OK-ish, but better is the extended taper B&W use like the attached.
Attachments
Before Ring i did corresond a lot with the “designer”. They well knew the restrictions.
I am not taling about a pod on top, the pod would envelope the top of the FH leaving the driver in the same place (more or less). This just disguises the rectangular portaion of the box at the top where the driver is.
It could be prototyped with a carved styrofoam shape that fits over the top of the horn (rear mounting the driver).
dave
I am not taling about a pod on top, the pod would envelope the top of the FH leaving the driver in the same place (more or less). This just disguises the rectangular portaion of the box at the top where the driver is.
It could be prototyped with a carved styrofoam shape that fits over the top of the horn (rear mounting the driver).
dave
At the frequencies involved a stepped, or flat-sided shape is little different than a smooth one, just avoid sgharp corners.
In this image you can see some thots about stepped “supraBaffle” that emulate the B&W midPod. This BTW is Maiko, the more exotic BVR Scott & i have done, for a very expensive driver, NLA, and IMO not all that good.
dave
In this image you can see some thots about stepped “supraBaffle” that emulate the B&W midPod. This BTW is Maiko, the more exotic BVR Scott & i have done, for a very expensive driver, NLA, and IMO not all that good.
dave
Thanks Scott and Dave,
reading these two links:
http://www.frugal-horn.com/downloads/supraBaffle-appendix-draft.pdf
True Audio TechTopics: Diffraction Loss
Based on the first document, the horn of the FH (does it apply to FHXL too? With deflector as well?) compensates down to 250 Hz, so applying the formula of the second document 250 = 115 / W(B) means width has to be 46 cm, that I think it's the radius around the speaker.
Is it correct?
reading these two links:
http://www.frugal-horn.com/downloads/supraBaffle-appendix-draft.pdf
True Audio TechTopics: Diffraction Loss
Based on the first document, the horn of the FH (does it apply to FHXL too? With deflector as well?) compensates down to 250 Hz, so applying the formula of the second document 250 = 115 / W(B) means width has to be 46 cm, that I think it's the radius around the speaker.
Is it correct?