FWIW
My 2 cents worth.
I looked at finding some sort of amplifier similar to what is being discussed here.
again with a view to directly driving some ribbons.
My solution and reasoning:
I couldn't get satisfactory access to "high end " amorpous core transformers as used in the raals so I decided to experiment
Note : ribbons are 26" long x 1" wide -neo magnets
I put a 4 ohm load in series with the ribbon and hung off the end of a DIY Pass Aleph 5.
a waste of power in the resistors ? - not really the amp runs flat out (in current draw from the wall) all the time irrespective of signal level (so i believe) -so what diff does it make if the power is wasted in the resistors.?
Volume level is more than adequate - as I've noted elsewhere- loud enough to annoy my teenage kids.
The sound .....fantastic...
Thus ended my search for a direct drive amp.......
Comments?
My 2 cents worth.
I looked at finding some sort of amplifier similar to what is being discussed here.
again with a view to directly driving some ribbons.
My solution and reasoning:
I couldn't get satisfactory access to "high end " amorpous core transformers as used in the raals so I decided to experiment
Note : ribbons are 26" long x 1" wide -neo magnets
I put a 4 ohm load in series with the ribbon and hung off the end of a DIY Pass Aleph 5.
a waste of power in the resistors ? - not really the amp runs flat out (in current draw from the wall) all the time irrespective of signal level (so i believe) -so what diff does it make if the power is wasted in the resistors.?
Volume level is more than adequate - as I've noted elsewhere- loud enough to annoy my teenage kids.
The sound .....fantastic...
Thus ended my search for a direct drive amp.......
Comments?
The larger Koss electrostatic loudspeakers had a high-power 4Ω resistor (and a 60W/120V lightbulb) in series with the primary of the step-up transformers.
http://www.audiocircuit.com/A-Images/AA-Brands/K/KOSS-KOS/1-A_________-F-002-941-KOS.jpg
http://www.audiocircuit.com/A-Images/AA-Brands/K/KOSS-KOS/1-A_________-F-002-941-KOS.jpg
Maybe this thread could be of interest:
http://www.diyaudio.com/forums/soli...t-source-160c-who-have-heard.html#post3094148
http://www.diyaudio.com/forums/soli...t-source-160c-who-have-heard.html#post3094148
Attachments
this amp is able therefore
http://184.168.208.58/assets/images...(bridged monoblocks)/PliniusSAReference-3.jpg
http://www.hifishock.org/gallery/electronics/plinius/power-amplifier/sa-reference-1b-plinius/
check also out this thread:
http://www.diyaudio.com/forums/soli...s-paralleled-place-one-output-transistor.html
http://184.168.208.58/assets/images...(bridged monoblocks)/PliniusSAReference-3.jpg
http://www.hifishock.org/gallery/electronics/plinius/power-amplifier/sa-reference-1b-plinius/
check also out this thread:
http://www.diyaudio.com/forums/soli...s-paralleled-place-one-output-transistor.html
Last edited:
Resurrecting this old thread: I’d like some input from those who are more knowledgeable than me on whether the new Stasis front end and OS boards would be a good candidate for a very high current amp for driving ribbons, given there is scope for using lots of output pairs - ?
https://www.diyaudio.com/community/threads/new-stasis-front-end.363701/page-64
https://www.diyaudio.com/community/threads/new-stasis-front-end.363701/page-64
