spedge, I'm not sure what you mean by the bolded. I did not realize there would be no way to brace the driver separately from the panel though. And I have already had issues with the weight of the driver reducing travel in a ceiling hung setup. I put in an order for some Daytons that will work... hopefully they sort out their supply issues soon.
Cheapvega.
The exciters suspension is pretty stiff ,it's probably designed to support the exciter weight so I wouldn't worry about it.
No extra support is needed.
I was confused by bolded,but now the penny has dropped.
Someone was talking about putting a bolt through a ply panel I believe and attaching it to the centre screw hole,if that makes sence?
Steve.
The exciters suspension is pretty stiff ,it's probably designed to support the exciter weight so I wouldn't worry about it.
No extra support is needed.
I was confused by bolded,but now the penny has dropped.
Someone was talking about putting a bolt through a ply panel I believe and attaching it to the centre screw hole,if that makes sence?
Steve.
Xrk971.
Yes, I thought I would start from the basic panel and go from there.
While cutting a hole in the centre of the panel I noticed that the exciter was not properly glued to the panel(hence the ringing).
It looks like the canvas soaked away the glue, should have primed the surface first 🙄
Something to remember.
Steve.
Yes, I thought I would start from the basic panel and go from there.
While cutting a hole in the centre of the panel I noticed that the exciter was not properly glued to the panel(hence the ringing).
It looks like the canvas soaked away the glue, should have primed the surface first 🙄
Something to remember.
Steve.
Jaxboy.
It has to be an mp4 file and keep it below 8.2mbs or it will not upload.
The recording was from an old HiFi News free sampler disc, and I believe her name is Lorraine Hunt.
Steve.
It has to be an mp4 file and keep it below 8.2mbs or it will not upload.
The recording was from an old HiFi News free sampler disc, and I believe her name is Lorraine Hunt.
Steve.
Xrk971.
I only glued the panel late last night with a dome in the middle so the hf should improve a little bit more with time.
First picture is the fabric dome not so much a tweeter more a dust cone.
This will hopefully prevent cavity noise and reduce distortions within the cone are?
Second picture is the full range response.
The third picture is the old now floppy cascamite panel full range response, all the cracks don't seem to affect the performance but the lack of ply does reduce the low end below 300hz.
So probably next I'll try coating the panel in pva and see what happens, if anything?
Steve.
I only glued the panel late last night with a dome in the middle so the hf should improve a little bit more with time.
First picture is the fabric dome not so much a tweeter more a dust cone.
This will hopefully prevent cavity noise and reduce distortions within the cone are?
Second picture is the full range response.
The third picture is the old now floppy cascamite panel full range response, all the cracks don't seem to affect the performance but the lack of ply does reduce the low end below 300hz.
So probably next I'll try coating the panel in pva and see what happens, if anything?
Steve.
Attachments
terry Evans
and a quick recording of the canvas with dome and old art panel, with sub .
xo 300hz sub 150hz panels.
128kbs only but i think i got away with it ?
steve.
and a quick recording of the canvas with dome and old art panel, with sub .
xo 300hz sub 150hz panels.
128kbs only but i think i got away with it ?
steve.
Not that I would , but if I used the dsp I could put a dip in the response at about 5oohz and I'd end up with a pretty flat response from 125hz to about 15k with a rising response after that.
But I prefer a slopping response to the hf which sometimes works out perfectly.
Steve.
But I prefer a slopping response to the hf which sometimes works out perfectly.
Steve.
Ah that's encouraging and would simplify things a lot. I am using 1" thick polystyrene so just being able to glue the exciters on would simplify things a lot. Cheap enough to gamble on too.... might give these a shot.
Spedge,
Thanks for getting back to me. I looked Lorraine Hunt up on youtube to see if I could find some more of her. Wow! I love Elena Garanca, but this lady was at another whole level! I don't know how I never heard of her. Such a tragedy that she died so young. Kind of like the Eva Cassidy of opera. She put such emotion into her work, didn't she? She makes other singers sound like they are reading a restaurant menu in a language they don't speak. Thanks so much for turning me on to her.
How do I change an .mp3 file to an .mp4? I tried just changing the .mp3 to .mp4, but that didn't work.
Thanks for getting back to me. I looked Lorraine Hunt up on youtube to see if I could find some more of her. Wow! I love Elena Garanca, but this lady was at another whole level! I don't know how I never heard of her. Such a tragedy that she died so young. Kind of like the Eva Cassidy of opera. She put such emotion into her work, didn't she? She makes other singers sound like they are reading a restaurant menu in a language they don't speak. Thanks so much for turning me on to her.
How do I change an .mp3 file to an .mp4? I tried just changing the .mp3 to .mp4, but that didn't work.
Jaxboy.
You put it so well,her voice is so moving you can feel the pain and sadness.
For converting to mp4 I use a free download called VLC ,I can help you work your way through it if you download it,unless someone else has a better easier way ?
Steve.
You put it so well,her voice is so moving you can feel the pain and sadness.
For converting to mp4 I use a free download called VLC ,I can help you work your way through it if you download it,unless someone else has a better easier way ?
Steve.
I've just attached a new fabric dome to my veneer panel ,replacing the tissue and pva dome..
First impressions are very promising, a very clean and detailed sound, although not the flattest of responses I've ever had .
Amazingly it still has a usable response down to 40hz (which I would never use it down to) which I can hear rumbling in the background.
This 1mm thickness of veneer could do well on a canvas panel ? With a little bit of gigery poker to make sure to keep the sound ?
With such good sounding small panels, i think it's getting harder to justify large panels in a normal domestic environment ?
The first picture is full range at 12inches.
The second picture is also full range but at 12ft.
Lastly the panel with dome come dust cover ?
I may have to start looking for veneers again 😕 not looking forward to that.
Steve
First impressions are very promising, a very clean and detailed sound, although not the flattest of responses I've ever had .
Amazingly it still has a usable response down to 40hz (which I would never use it down to) which I can hear rumbling in the background.
This 1mm thickness of veneer could do well on a canvas panel ? With a little bit of gigery poker to make sure to keep the sound ?
With such good sounding small panels, i think it's getting harder to justify large panels in a normal domestic environment ?
The first picture is full range at 12inches.
The second picture is also full range but at 12ft.
Lastly the panel with dome come dust cover ?
I may have to start looking for veneers again 😕 not looking forward to that.
Steve
Attachments
Spedge,
I have had VLC for years, my favorite, but don't know how to convert a file from .mp3 to .mp4. Please help me with it.
I have had VLC for years, my favorite, but don't know how to convert a file from .mp3 to .mp4. Please help me with it.
Steve,
vis-a-vis
acoustic guitar sound boards
and...
Ekoa® composite used to make "linen" guitars. See Lingrove & Blackbirdguitars.
Next subject, (someone may have posted this before) see Fantastic DIY Speakers for less than $30!. This has changed my view of suitable DML material characteristics. The video further explores the idea of placing weights on the back of panels at the 2/5 divisions to improve the response of panels. Very interesting.
See attached photo from the video.
Something else came to me on watching the video. Has anyone tried attaching exciters to a bass drum head? One can get 18" drum heads at Guitar Center for $22.99.
So much fun on this forum.
- Andreas
vis-a-vis
acoustic guitar sound boards
and...
Ekoa® composite used to make "linen" guitars. See Lingrove & Blackbirdguitars.
Next subject, (someone may have posted this before) see Fantastic DIY Speakers for less than $30!. This has changed my view of suitable DML material characteristics. The video further explores the idea of placing weights on the back of panels at the 2/5 divisions to improve the response of panels. Very interesting.
See attached photo from the video.
Something else came to me on watching the video. Has anyone tried attaching exciters to a bass drum head? One can get 18" drum heads at Guitar Center for $22.99.
So much fun on this forum.
- Andreas
Attachments
Last edited:
You can change the extension of the file from .MP3 to .ASC and DIYA server will accept it as upload. Then users have to change file name to .MP3 to listen.
Hey Andreas! The first Tech Ingredients video you mention has a lot of interesting ideas, however the weights as dampener idea was abandoned in their second video, in favor of using 2 equal size panels where one has the exciter mounted in the center of the panel and the 2nd panel had exciter mounted in the 2/5,3/5 position. With the weights the panel obviously becomes heavier and that effects overall output plus they found that the weights had a less than 30% dampening of the peaks. While the two panel method obviously created a higher overall output and the sound mixing in air rather than directly on the panel created a 50% or more difference in the peaks due to the complimentary effects of the mixing sound waves. So they don't recommend the bother of using weights to dampen the peaks anymore.
There is a lot of great testing they do between the two videos that has been shared here many times since they were made but a lot of folks just want to experiment and roll there own so to speak since there is so much to play with without spending a lot. TI is a good starting point to experiment from but not the absolute answer. I myself hope they make another follow on video with more nuggets of knowledge.
geos
Spedge,
Ok, lets try this and see if my song uploaded. This is Natalie Dessay singing the Ophelia's aria in the last scene in part 1 of Hamlet. This one gets to me pretty good, too. Aha! It worked!
Ok, lets try this and see if my song uploaded. This is Natalie Dessay singing the Ophelia's aria in the last scene in part 1 of Hamlet. This one gets to me pretty good, too. Aha! It worked!
Jaxboy.
Good morning.
I tried to get into my computer last night but it had just done an update,so wouldn't do anything 😕 .
In the end I had to take out the battery, that's another two hours of my life I won't get back, thanks Microsoft 😡 .
I was trying to sort out vlc for you but it got too late,so went to bed,very grumpy.
But it looks like you managed to sort something out, the music and voice on the recording sounds very good , but there's a lot of what sounds like microphone noise or digital artefacts screwing up the recording ,what methods did you use to do the recording ?
Is it just the panels ?
Did you use vlc ?
Steve
Good morning.
I tried to get into my computer last night but it had just done an update,so wouldn't do anything 😕 .
In the end I had to take out the battery, that's another two hours of my life I won't get back, thanks Microsoft 😡 .
I was trying to sort out vlc for you but it got too late,so went to bed,very grumpy.
But it looks like you managed to sort something out, the music and voice on the recording sounds very good , but there's a lot of what sounds like microphone noise or digital artefacts screwing up the recording ,what methods did you use to do the recording ?
Is it just the panels ?
Did you use vlc ?
Steve