[-Richard-]

So there is an "event"... music is played in a room... the room can be "controlled" (studio) or a "live space"... then microphones capture something of what takes place... an engineer "interprets" what he/she thinks they hear... then that information is deposited on a master (vinyl, tape, disk)... copies are made... then we play that disk (or tape, vinyl) on a machine that "reads" the microscopic holes turning them into a musical signal... from there to a pre-amplifier and then to an amplifier (solid state or/and tubes with all of the many circuit variations)... then finally to speakers (all kinds, box with dynamic drivers, horns, open baffle, ribbons, electrostatic, planar)... different "wire" is used to augment the sound (interconnects, cables)... and finally the musical signal enters and interacts with the room.

That is quite a complex series of passages of the "original" musical event.

To think of reproducing the original event "faithfully" is a rather abstract idea when one considers the procession of components the signal must go through.

One could well ask the question... what are we really after here?

Music has the power to move us to a depth of feeling that is not usually brought about as we move through our daily lives... unless we are in crises. In that sense music may very well be a "safe" crises that we are willing enter in order to feel.

With Warmest Regards ~ Richard

[canzld]

To think of reproducing the original event "faithfully" is a rather abstract idea when one considers the procession of components the signal must go through.
One could well ask the question... what are we really after here?

not to reproduce the original event i would say, but to create a new musical event -and a certain degree of accuracy in the reproduction of the recording (such as it is, with all its inherent untruths) is probably required for you and your wife to derive so much enjoyment from your B200/alpha OB.
all the best

[richardcooper2k]

here is my effort - not using B200 or Alpha 15 i know but partly inspired by this thread.

mid and tweeter are vintage saba greencones from Germany (not designed to work in a box)
woofer is also vintage 15 inch 

went for U rather than H bass baffle as it seems to give me a little more and the saba's are about 95dB efficient. i have heard padding them back with resistors sucks the life out of the sound a bit.

crossovers not optimized yet but they sound great so far !

[Bemopti123]

RichardCooper, I like your take on old classics.  Can you post a profile and pictures of your system?

BTW:  what sort of measurements do you take to determine the crossover points and what to use to pad different drivers down?

[richardcooper2k]

profile and system done !

present crossover is pretty much the lampizator one on this page (another source of inspiration for my project) :      http://www.lampizator.eu/SPEAKERS/PROJECTS/P17/Endorphine%20from%20Kingston%20Kitchen.html

at present there are no resistors in the crossover. sounds good but these speakers sound so different to my audio note kit speakers i am struggling to be clear about what i am hearing in respect of balance through the frequencies.

i have ordered an m-audio mobile pre and a behringer ecm8000 mic to take some measurements but i'll have to work out how to use them and download some software first (and work out which software and how to use it). any links to instructions/guidance how to do this appreciated.

[canzld]

neat - it was Lampizator who first got me interested in OB as well- sadly I've never had the chance to hear the Saba greencones.

[richardcooper2k]

i paid £67 including postage from Germany on ebay for the set of 4 so they are a bargain

you won't loose anything as you can always sell them on

[JohnCZ]

Don't know if I should start a new thread - but I thought I would post the question here first, since we are on the subject.

I have read the discussions about 1 or 2 Alphas and the pros and cons. My question if regarding the B200. What would be the result of 2 B200 per baffle? I'm thinking of an MTM or a TMM also using the Beo3. ZU seems to have some success with it in their 'Definition' model.
I have the OB with B200/Alpha 15 with filter on the B200 and a T-Bass circuit on the Alpha and it sounds great. I do notice that at times I see the B200 'working hard' during loud passages in the music.
Any thoughts?
John

[SAC]

If using the B200 to go low, below 200Hz say, then the power handling and low Xmax become a problem at high volumes.  StigErik reported blowing his, playing drums at live levels.  I have given up my B200 config for a 4-way (dual alpha15s, Monacor 8", Monacor 4", Neo3PDR).  A different monster I know, but I do not miss the B200 at all.

I remember a long time ago seeing people use up to four B200s per baffle, and they loved it, with the appropriate Xovers.

[jonners]

I remember a long time ago seeing people use up to four B200s per baffle, and they loved it, with the appropriate Xovers.

Paul Hynes uses eight B200s per baffle, in parallel!