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In Reply to: RE: Ok let's talk auto former with a remote - what is the advantage of an autoformer posted by airtime on February 02, 2016 at 06:06:10
it colours the sound and has a rather coarse adjustment step(s).
Edits: 02/02/16Follow Ups:
and every resistor so we should just listen at full volume?
Of course, I understand that in your world there is no compromise so the idea of selecting something that does the most things correctly is not a concern to you. Why bother when perfection is at your toe tips.
I would be willing to bet you have never heard the Slagle autoformer but why would that stop YOU from making a comment?
The next question is why would I bother responding to the expected nonsense? Bored, I guess.
The slagle autoform board looks like it uses a carbon type pot with what looks like a balance control.
not being completely OC, at some point One DOES need the actual "volume control". I would like to consider just using the autoform from Slagle and using my goldpoint 25k stepped attenuator as the actual volume control. And Bent audio does carry the remote motor harness for the GP attenuator.
Or should I just use no volume control and attenuate using variable pillow thickness over the speaker??? :-)
interesting
charles
For the various windings.
No potentiometers are involved.
The BENT uses relays in place of the switches and s able to give more level choices by combining various windings.
I hate relays though I do not doubt there is no downside to the BENT other than the cost. This fellow is very talented.
John Chapman, aka Bent Audio, no longer sells to individuals, only to OEMs. So, you can't get anything from him.
Being friends with John, I know that the motor control was never the best solution. In other words, it had its problems.
Switches can also be problematic. They wear out, etc.
The best solution is the mercury wetted relays found in the remote control version, both functionally and sonically. I've lived with both and compared.
I was one of the early users of Dave Slagle's autoformers. OK, I volunteered to be a guinea pig. That was something like 15 years ago, been using autoformers every since.
The remote modules are found in the Vinnie Rossi LIO, btw.
My remote autoformers are 60, 1dB steps, including one last step with a bit of gain. There's balance and mute too.
The version you are looking at with two controls is a course and fine adjustment of sorts that changes the input and output connections to the autoformer to achieve 1.25 dB steps with fewer taps coming out of the autoformer. There's a practical limit to how many taps can be brought out. Plus, there's a limit to how many solder connections DIYers are capable of making....
As to fmak's comments, well, that's in error, uninformed and without experience.
.
http://vinnierossi.com/modules/autoformer-volume-control-1/
Sounds interesting. I use a Placette and like it. Tried a Sonic Euphoria and liked it too but no remote.
I didn't see any images of anything but the remote. I also didn't see how many inputs or outputs it has written anywhere. Would like to see the case and the RCA's it uses.
ET
The case is the case for the LIO - you just populate with what you want. FYI: http://vinnierossi.com/configure-lio/
Sorry but as one that has made a few websites and didn't have a problem understanding Chapman's Bent page where the consumer had to configure their product that page is a site for me.First I never saw the term LIO defined. It seems you start at 2495 for the basic chassis with PS and display, then add 1495 for the autoformer. I see "add line level inputs" for 295 but it doesn't say how many. One assumes more than one since inputs is used not input.
So it looks like its 4300 for the auto former passive then right? How many inputs is that? Looking again on a different page I saw input select module with a picture and there are three. I assume there is a remote with that as shown on the autoformer page. I also asked about multiple outs (since I biamp) and didn't see that as a choice. I don't know about 2495 base module to go with the 1495 autoformer. A very basic power supply would do for that since its not an active circuit. Maybe a stripped down version for those that just want a passive linestage could be made. I guess just having one platform makes things easier for you.
Not being critical but the site could be better defined and easier to use. It is a nice looking site anyway. Im one that would trade that for more clarity however. So what does LIO stand for anyway? Since you know all the products you probably don't agree but if you asked 10 intelligent well read and experienced Internet and audio folks like me I bet over half would have some level of confusion with the site. I get the a LA carte idea I just think a little more explanation is needed.
ET
Edits: 02/06/16 02/06/16 02/06/16 02/06/16
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