Dynamic Range 20-20K

[everettT]

Everybody I know, who has tried open baffle designs, quit them once the novelties wore off.

That has been my experience too. The Linkwitzs were the one exception but like the rest it takes more flexibility with room placement that I'm willing to give up anymore. I've owned Martin Logan speakers that I enjoyed, especially with piano, but they never cut the mustard with all types music. My only exception are di/ripole subs, I've heard some really nice units with music.

 

[Anglofun]

Evening

Well this thread went a little here and a little there, which is great. Clearly you guys like your box speakers which is more than fine. I am not on a forum, especially after being on forums for more than 25 years other than enjoy my time exchanging. Open baffles, which the ones I have right, have been with me since the beginning of my audio journey. I have listened and had many different systems and keep coming back to these. My bad lol.

I started posting just to discuss different things, different sonic aspects and go from there.

My questioning on the dynamic range made me do a lot of research and go back to someone that had a pretty big impact on the world of audio. Lynn Olson has a website and talks about many key aspects, sonically and how systems play around with them. Anyone who is interested, it is Nutshellaudio.com.

The thread on DIYaudio started by Lynn, Beyond the ariels has over 2400 pages. Very interesting stuff.

 

[lovinthehd]

Evening

Well this thread went a little here and a little there, which is great. Clearly you guys like your box speakers which is more than fine. I am not on a forum, especially after being on forums for more than 25 years other than enjoy my time exchanging. Open baffles, which the ones I have right, have been with me since the beginning of my audio journey. I have listened and had many different systems and keep coming back to these. My bad lol.

I started posting just to discuss different things, different sonic aspects and go from there.

My questioning on the dynamic range made me do a lot of research and go back to someone that had a pretty big impact on the world of audio. Lynn Olson has a website and talks about many key aspects, sonically and how systems play around with them. Anyone who is interested, it is Nutshellaudio.com.

The thread on DIYaudio started by Lynn, Beyond the ariels has over 2400 pages. Very interesting stuff.

I did have some open baffles, they were okay but prone to issues in a few ways. What works for you is always a good thing....

 

[Kingnoob]

I did have some open baffles, they were okay but prone to issues in a few ways. What works for you is always a good thing....

I had someone on a different site long ago try and convince me open baffles weere easy to build and diy. I told them no thanks I’m not bothering with that I didn’t even understand x overs . Still don’t know how to make them. It’s complex best left for experts. They claimed they were better for music. And had h frame subs. They knew how to build them I didn’t have a clue.

 

[everettT]

I had someone on a different site long ago try and convince me open baffles weere easy to build and diy. I told them no thanks I’m not bothering with that I didn’t even understand x overs . Still don’t know how to make them. It’s complex best left for experts. They claimed they were better for music. And had h frame subs. They knew how to build them I didn’t have a clue.

Well, the cabinets, or lack thereof, are simple, but the crossover requires some thought but no more than any other complex crossover. Most people who get into OBs are not lifers, lol. You can easily pickup used units at 75% off their retail. One person who was a proponent of them was Siegfried Linkwitz, of the Linkwitz-Riley crossover fame. There is tons of educational reading on his website, God rest his soul.

Linkwitz Lab - Loudspeaker Design

Design and consultation in electro-acoustics. Fundamental concepts of sound reproduction in rooms. Detailed design information for DIY construction of a subwoofer and an open-baffle speaker with exceptional fidelity. Dipole loudspeaker design for true to the original sound reproduction with...

www.linkwitzlab.com

 

[Kingnoob]

Well, the cabinets, or lack thereof, are simple, but the crossover requires some thought but no more than any other complex crossover. Most people who get into OBs are not lifers, lol. You can easily pickup used units at 75% off their retail. One person who was a proponent of them was Siegfried Linkwitz, of the Linkwitz-Riley crossover fame. There is tons of educational reading on his website, God rest his soul.

Linkwitz Lab - Loudspeaker Design

Design and consultation in electro-acoustics. Fundamental concepts of sound reproduction in rooms. Detailed design information for DIY construction of a subwoofer and an open-baffle speaker with exceptional fidelity. Dipole loudspeaker design for true to the original sound reproduction with...

www.linkwitzlab.com

Yeah it’s depressing an audio legend gone.
he was born around the ww2 era most are gone from then. Sad times even today because everyone is running out of time. Definitely scary..

 

[everettT]

Yeah it’s depressing an audio legend gone.
he was born around the ww2 era most are gone from then. Sad times even today because everyone is running out of time. Definitely scary..

He was one of the guys who got me into sound reproduction and IMHO a genius. He moved speaker design forward in 1970s and his work is still relevant in a lot of designs today.

 

[William Lemmerhirt]

He was one of the guys who got me into sound reproduction and IMHO a genius. He moved speaker design forward in 1970s and his work is still relevant in a lot of designs today.

Tom noussaine was another mad scientist. Really enjoyed his work. Tried to look some up a few years ago. Couldn’t find anything. Iirc his estate locked all of it up, or there was copyright problems. Can’t remember…

 

[everettT]

Tom noussaine was another mad scientist. Really enjoyed his work. Tried to look some up a few years ago. Couldn’t find anything. Iirc his estate locked all of it up, or there was copyright problems. Can’t remember…

I haven't heard that name in a few years, his working low frequency production was really good.

 

[highfigh]

Having been on forums of all kinds over the last 20 years, this conversation has been beaten to the point that the dead horse is now flatter than pancake.

Drivers do respond differently. Low efficient, high efficient, different materials, all that. All I am trying to do is get the same momentum of macro dynamics in the bottom end as I do above 150HZ.

To put it into better context, A LOWTHER driver ( ignoring its faults) in a read loaded horn configuration is dynamic (to my ear) from 80 hz - 15K. Easily, effortlessly.

Although I have a 4 way system and will never achieve the coherence of a single driver, I find my system to be very coherent. not LOWTHER coherent but very decent. Now all I am trying to do, is get a linear dynamic range from the bottom up instead of 150HZ and up. I am not so far off my goals I think.

MY OB's are cut this way

(SVS PB 2000 Pro) 17 HZ to 35 @ 24db per octave.
Supravox Rolls of naturally due to the baffle and its FS is 23hz but due to the size of my baffle that isn't happening. It cuts off at 150hz. Then the EV comes into play all the way to 3K, tweeter above.

Why are you referring to frequency response as 'dynamics'? Dynamic range is expressed as decibels, not Hertz. That's the reason I asked about units and you replied using frequency.

You need to get your science straight before arguing.

 

[MrBoat]

Well, the cabinets, or lack thereof, are simple, but the crossover requires some thought but no more than any other complex crossover. Most people who get into OBs are not lifers, lol. You can easily pickup used units at 75% off their retail. One person who was a proponent of them was Siegfried Linkwitz, of the Linkwitz-Riley crossover fame. There is tons of educational reading on his website, God rest his soul.

Linkwitz Lab - Loudspeaker Design

Design and consultation in electro-acoustics. Fundamental concepts of sound reproduction in rooms. Detailed design information for DIY construction of a subwoofer and an open-baffle speaker with exceptional fidelity. Dipole loudspeaker design for true to the original sound reproduction with...

www.linkwitzlab.com

I thought baffle size matters some, too?

Linkwitz and Nelson Pass were chums, IIRC. They both had a similar, unbridled nerdiness about them, that points to more of what makes them tick, other than perhaps any absolutes of specific sound quality. Their approaches are certainly amusing, albeit enjoyable, regardless of what some dyed-in-the-wool, modern audiophiles, might find quirky about them.

 

[mtrycrafts]

Tom noussaine was another mad scientist. Really enjoyed his work. Tried to look some up a few years ago. Couldn’t find anything. Iirc his estate locked all of it up, or there was copyright problems. Can’t remember…

I met him at an AES convention, 1998/9 maybe, in San Francisco. Nice person. did a lot of work and testing with DBT protocols, went to people's homes to see if they can hear what they claimed. He has numerous articles in audio magazines of old.

 

[everettT]

I thought baffle size matters some, too?

Linkwitz and Nelson Pass were chums, IIRC. They both had a similar, unbridled nerdiness about them, that points to more of what makes them tick, other than perhaps any absolutes of specific sound quality. Their approaches are certainly amusing, albeit enjoyable, regardless of what some dyed-in-the-wool, modern audiophiles, might find quirky about them.

I was just referring to the skill required to make them, but yes the size of the baffle is of importance.