audio-talk

Sold on the Wam.

That 3D cad image confirms it’s a slot loaded open baffle, Bert has just used the wings as wave guides. As long as the chamber is very small the 1/3 and 1/5 wave length modes will hopefully be above 500 Hz, may need a higher order xover to mitigate them, also allow you to cross the horn a little low...

Finally got around to finishing off the second es250 horn. Personally I cannot qualitatively assess a single channel, needs to be stereo. They have merit, a different presentation to my midrange AMT’s. They bring the musician into your room, opposed to taking you into the music venue. Not as much ai...

Selling on Dave’s behalf. MiniDSP - DDRC-24 DIRAC + UMIK-1 Measurement Mic. It’s new and boxed, he bought it a few years ago complete with licence files. He’s looking for around £300.

Managed to get sometime to play with Hornresp at the weekend. A little better but still not what i was expecting to get. Doesnt seem to be any affect from changing the stuffing parameters - must still be doing something wrong. attempt2a.png attempt2b.png Its along way off the original concept spiral...

been playing with hornresp - without much success. for a Q =0.7 the driver wanted a 22 ltr sealed box. So i have tried to model that with a chamber on the back like in the examples that someone else has done before in the leonard audio package. TaperedTube 12P80Nd (1).jpg my attempt - not so good. i...

Wanting to model a golden ratio spiral v other profiles. Yes a straight tube 1/2 the lowest wave length with stuffing getting progressively denser would work

I am wanting to do a closed ended transmission line, like the nautilus to absorb the backwave completely. Hornresp modelling horns always has a mouth...... I need to look around the other options, Dave McBean has told me to look in the loudspeaker wizard tool.

Yes I have planned the parabolically decreasing sections, if modelled like a horn you cannot have the termination at the end. I suppose I could tweak it until the backwave has no output via a small port. Which is what I think the vivid Gaya speaker does for its bass section, It’s from the same perso...

I thought I had downloaded the latest version a month a go or so version 28 something- will check. Yes Without DSP contouring the 12p80nd has a rubbish LF response. Chopping 10db efficiency off it will get it down to where I need. Whether all the benefits of a Kt 0.15 driver are lost is another ques...

i am wanting to make a "blackhole" behind a Beyma 12p80nd driver - so i get infinite baffle properties from a sealed box. Looking at 80hz bottom end. It was meant to be an easy fun project for the WAM show.....

i dont seem to get those options Scott. Not sure if its the version i have or my ineptitude

I am trying to design a transmission line speaker, and have lost access to the tools I used to use : MK’s worksheets or more specifically the math cad license, and the Leonard Audio Tools, which don’t seem to be available anymore. I have seen people using a TL design tool in Hornresp. Any ideas if t...

steve s wrote: ↑Mon Mar 13, 2023 12:07 pm Flooring grade chipboard is my choice, in my opinion it has less 'sound' than the best ply's.

I thought you were using furniture grade OSB for your cabinets 30 odd mm thick.

When my old man was making speaker cabinets for AR in the 1960's they used to sand fill the bass cabinets. A particle damper as we would now know it, between two ply sheets.