Hornresp

[Kolbrek]

Be aware that the driver electromagnetic coupling invert impedances, so a mechanical or acoustic inductance (mass) will show up as a capacitance in the electrical impedance, and vice versa.

You can see an example of this in David's impedance plot above. Below resonance, the driver is stiffness controlled, i.e. a mechanical capacitance, but the phase of the electrical impedance is positive, i.e. the electrical impedance is inductive.

This can be somewhat confusing. But if you are using impedance to check adjust your design, it can be useful to keep in mind.

 

[Kolbrek]

So is it the final countdown? Monday....

For Amazon.co.uk at least. But it is available here at the moment.

I'm buying a copy of the book. From long experience I understand how much work has been put into this. It will be greatly appreciated.

Thanks. It's been a massive undertaking. Hope you will find it useful

 

[DonVK]

@Kolbrek, that second site seems to have a currency conversion problem with Dollars. It seems more reasonable if you select Euro or Pounds.

 

[Kolbrek]

I was advised that you should contact them directly in this case.

 

[bolserst]

Hornresp Update 5050-191023

CHANGE 1
The polarity assumed for an individual output in a multiple output system is now shown on the phase chart for that output.
…
CHANGE 3
The path length value has been removed from the combined response phase and group delay chart captions so as not to imply that the path length is included in the phase and group delay calculations. The charts now also indicate that the combined response is being shown.

This addresses the confusion I was having with the phase responses. Thanks!

CHANGE 4
Loudspeaker wizard dipole pressure response chart results can now be exported.

Much appreciated!

 

[Sabbelbacke]

Whooo... orderd my copy, looking forward to it

 

[Kravchenko_Audio]

Whooo... orderd my copy, looking forward to it

I'm trying...


They do not have simple shipping to Canada. In fact there is no where in their system for me to really input the correct address.


So I send an email. I'll report back

 

[Kravchenko_Audio]

Had a pleasant email exchange with the UK vendor and I'm awaiting the delivery of my copy. Thanks again to you two gentlemen for the enormous amount of working creating such a reference.

 

[Greebster]

Ordered


Bjorn thank you

 

[IslandPink]

Very happy to hear my copy is now being shipped !
( more accurately 'lorried' ! )
Looking forward enormously to reading this.

 

[Andypk]

Hello, Can I ask. In the Filter Wizard Settings.

I have used a Second Order Filter. Is this the same as a Butterworth Filter with an order of 2?

I have designed a folded horn/ Ported Cabinet and have to apply filters to reduce the Diaphram Displacement.

How can I replicate this filter for the sound test I am going to be doing on the Cabinet.

Thanks

 

[David McBean]

Hi Andypk,

I have used a Second Order Filter. Is this the same as a Butterworth Filter with an order of 2?

A Second Order Filter with a Q Factor of 0.71 (1 / Sqrt(2)) is the same as a Butterworth Filter with an order of 2.

How can I replicate this filter for the sound test I am going to be doing on the Cabinet.

I will leave this for someone else to answer .

Kind regards,

David

 

[Andypk]

Thank you for your reply. Your application is amazing. See this post if you are interested.

Folded Horn/Bandpass 15" Design Pics. - Speakerplans.com Forums - Page 4

The only way to get the cab to function is "Second Order" with a Q factor of .5

Thank you.

Xover 3 Pro might be an option. Or getting an internal xover made up.

 

[Andypk]

Thanks. I can control the Q in most Music Production Software Filters I think.

Thanks for your help. Hornresp is amazing.

I have a Q of .5 as second order. This is the best result for a Vented Rear chamber Folden Horn Design to reduce the xmax.

 

[David McBean]

The only way to get the cab to function is "Second Order" with a Q factor of .5

Not sure if it helps, but a Linkwitz-Riley Filter with an order of 2 is the same as a Second Order Filter with a Q Factor of 0.50.

 

[nc535]

For Amazon.co.uk at least. But it is available here at the moment.



Thanks. It's been a massive undertaking. Hope you will find it useful

I just received the book. Ordered it only 3 days ago from Lean Business Audio. It required an email with them since I am in the USA. No one should have any qualms about this purchasing process

 

[IslandPink]

The book is AWESOME !
Many thanks, Bjorn and Thomas.

 

[Circlomanen]

It seems like Hornresp works flawlessly in Proton in Steam. Just add it as a non-steam game and force the use of latest Steam play compability tool (Proton 4.11-7 in my case).

This is tested in Manjaro Gnome Edition.

 

[Brian Steele]

Interesting. Can you successfully import or export any Hornresp records?

 

[BP1Fanatic]

Can steam proton run on android phones?