herkyhawki
New Member
Picked up this Fisher Dynamic Space Expander at an estate sale. I see a few posts about it, but still do not know what it does. Can anyone provide a short description what it is used for?
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Dynamic Space Expander
- Thread starter herkyhawki
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You need the push-pull power switch and potentiometer for it to work.
It's a reverberator that takes the instant sound impulse and "copies" or delays it a millisecond and feeds it back to the speakers making it seem like you're in a concert hall where the sound echoes off the walls.
I have one and use it on live recordings. Not so great on most other stuff. And forget about listening to the news with it on... sounds like the news desk is in the bottom of a well.
It's a reverberator that takes the instant sound impulse and "copies" or delays it a millisecond and feeds it back to the speakers making it seem like you're in a concert hall where the sound echoes off the walls.
I have one and use it on live recordings. Not so great on most other stuff. And forget about listening to the news with it on... sounds like the news desk is in the bottom of a well.
JamesML
Well-Known Member
I've got one of these. But, not tried it out yet. One of these days I'll get around to it.
If Avery Fisher bothered to manufacture these then they must have a good purpose. I guess. Probably dependent on your listening room dimensions
as to whether it would be a good idea to use one or not.
I think modern day guitarists are partial to getting their hands on one of these.
If Avery Fisher bothered to manufacture these then they must have a good purpose. I guess. Probably dependent on your listening room dimensions
as to whether it would be a good idea to use one or not.
I think modern day guitarists are partial to getting their hands on one of these.
The Fuxtor
Addicted Member
I got one, but no reverb tank or the other necessities..
Love to hear about it if/when you guys play around with them.
I can imagine this is a bit more useful with mono stuff. One of the ways they "re-processed" mono recordings into stereo was using a thing called a plate reverb. Its basically a big steel sheet with a driver attached in the middle and a microphone hooked to the other end. It would add some delay from the original signal to what comes out of the microphone and it adds some "space" to the sound. A spring reverb tank would do the same kind of thing.
thornev
Super Member
In the days that Fisher manufactured that unit, AM radio used reverb a lot. I always disliked it because it masked the music. If the performers wanted reverb on their recordings, they would have added it in the studio...and many did. Adding more at the radio station was overkill. I believe the goal was to make the songs sound more live, like you were listening in a concert hall. Some DJ's used it when they spoke. I thought that was silly.
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As I said before. I use it on live recordings, both stereo and mono. It does add a dimension of realism not captured in or stripped out of a live recording
This is dependent upon where it was recorded such as ON THE STAGE (Bellefonte at Carnegie Hall) or in the audience, 5th row center. I use it on recordings of the Radio City organ because it actually does add that real dimension of being there. The reverb in that theater changes by where you sit. Most of those recordings were made on the stage so you don't "feel" like you're in the audience. The added reverb gives that realism and it's totally controllable with the Spacexpander.
This is dependent upon where it was recorded such as ON THE STAGE (Bellefonte at Carnegie Hall) or in the audience, 5th row center. I use it on recordings of the Radio City organ because it actually does add that real dimension of being there. The reverb in that theater changes by where you sit. Most of those recordings were made on the stage so you don't "feel" like you're in the audience. The added reverb gives that realism and it's totally controllable with the Spacexpander.
MacWorks
Member
Here is a demo of mine:
https://www.dropbox.com/s/gg28t69kn4jsd7w/IMG_0064.mov?dl=0
https://www.dropbox.com/s/gg28t69kn4jsd7w/IMG_0064.mov?dl=0
Thank you Mac that is very cool.
little-al
Active Member
Great demo. That file should get saved here somehow and pinned/stickied or put on YouTube since questions about how the K-10 sounds comes up every so often
