Thank you, now l understand. 
Well, its really not a bassreflex box.
It's more like a copy of a Truels Gravesen design.
Google Gravesen and cyclop, and you understand.
I also have the original cyclop midrange box with the Seas 5" driver, but deside to leave it and maybe use it for tv-sound
Well, its really not a bassreflex box.
It's more like a copy of a Truels Gravesen design.
Google Gravesen and cyclop, and you understand.
I also have the original cyclop midrange box with the Seas 5" driver, but deside to leave it and maybe use it for tv-sound
I will keep my 12×12" GPA's for bass duty. Very good sound from 30-200 hz.
Double GPA 12" for 200-1khz, black JMLC400 for the TAD2001 up to 9-10k and a T500 on top.
I think that's a good plan. And of course, a different color ;p
The Jantzen 8" and Eminence 15 beta can go up to the livingroom followed by a AMT l have in stock.
Family speakers
Double GPA 12" for 200-1khz, black JMLC400 for the TAD2001 up to 9-10k and a T500 on top.
I think that's a good plan. And of course, a different color ;p
The Jantzen 8" and Eminence 15 beta can go up to the livingroom followed by a AMT l have in stock.
Family speakers
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Good advice. I found the black needs a pre-finish, but recently used the tan on some stands in bare pine and it was really nice on it's own. Also using Rustoleum bed liner on cabinets. Nice matte finish and light texture.
Great thread! I have a list of speakers I rotate through, but I am using these Holt Hill Audio Cionnsaile Monitors on matching stands at the moment. Connected to a restored Bogen DB230A integrated from 1959. Source is a Pioneer DPR-609 CD Recorder that I also use as a DAC, as well as a Bluesound Node. Turntable is usually a Revox B790, but I have it out of rotation right now to fix the dust cover.
Hello and a happy new year to you all,
In december 2017, in my holidays i just finished my speakers, and forgot to post. Here are some pics with the finished rubas, bass, cables and filters.
I added a burned wood effect on the sides of each ruban and aded some handles. Those speaker cables are 6*2.5mm wires twisted two by two, then braided and have 3m long, and the + and - are holded together by wooden supports at 10cm distance from each other. This may be overkill but i noticed that cables do affect the sound abit..
The filters are basically butterworth but fine tuned to eliminate the peak at 220hz (crossing point).
My version of rubans are almost fullrange and can go from 150hz to above 23khz (my soundcard cannot do more) have 50cm tall membrane and are almost 360 degree dispersion at 8ohm and aprox 95db each at 100w. The verticall dispersion is poor but can be improved with an easy trick (work in progress).
The bass cabinet is an infinte baffle type with 95db 15inch bass 8ohm at 100w each(down firing--i did take into account all the aspects needed for this) and goes bellow 40hz with ease.
The amplifier is my modified version of Hiraga super classe a rated at max 38w sinus at 8ohms.
Cheers
Sergiu
In december 2017, in my holidays i just finished my speakers, and forgot to post. Here are some pics with the finished rubas, bass, cables and filters.
I added a burned wood effect on the sides of each ruban and aded some handles. Those speaker cables are 6*2.5mm wires twisted two by two, then braided and have 3m long, and the + and - are holded together by wooden supports at 10cm distance from each other. This may be overkill but i noticed that cables do affect the sound abit..
The filters are basically butterworth but fine tuned to eliminate the peak at 220hz (crossing point).
My version of rubans are almost fullrange and can go from 150hz to above 23khz (my soundcard cannot do more) have 50cm tall membrane and are almost 360 degree dispersion at 8ohm and aprox 95db each at 100w. The verticall dispersion is poor but can be improved with an easy trick (work in progress).
The bass cabinet is an infinte baffle type with 95db 15inch bass 8ohm at 100w each(down firing--i did take into account all the aspects needed for this) and goes bellow 40hz with ease.
The amplifier is my modified version of Hiraga super classe a rated at max 38w sinus at 8ohms.
Cheers
Sergiu
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Rubanoide, Janus 50, Linaeum ls1000 (call it whatever you want) and my ruban are actually derived from a german speaker from between the ww1-ww2 period. In that period the first type of this speaker was invented and patented i think, and had 3 feet if i remember good. The first ruban had a classic magnet with a classic type round coil. The rest have a longitudinall flat coil imersed in a forcefull neodim magnetic field and other improvements.
My ruban is derived partially from janus (only the height) and partially from linaeum patents (inspiration for the cuts, hinges, and a ton of other aspects that i researched and tested in 'a diy ribon of a different kind' from planars and magnetics forum) and some small adds from myself (the antihumidity paper treatment, improvements for a balanced horizontal dispersion and high frecvency improvement). These aspects are just a small part of the work, the other huge part has been researched and posted by my friend Wrine who is still working silently on a flat almost fullrange ruban.
Basically this speaker is a dipole speaker where the membrane has no yellow spider its very light and can almost sustain itself centered in the magnetic field (it has only two thin elasticson top and botton, weak tensionned, to keep things safe and in place) and the front and back of the membrane if summed can make an almost 15" almost fullrange speaker.
Bellow is the old article:
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Hi Bob, no i didnt. After reading allot about this speaker's potential and very good reviews i have decided to take a shot and started my research here A DIY Ribbon Speaker of a different Kind among the other colleagues.
There are sufficient ideeas tested and materials. If you want to try it please post your research and results so that we can learn new interesting things.
Cheers