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In Reply to: All kinds of music posted by JBasham on June 20, 2006 at 10:56:31:
Hi,The amplitude inbetween 200Hz-400Hz depends a lot on perfect phasing of the woofers and the distances of the o.b.- panels to the side- walls. The amplitude above 8Khz can be lifted by adding a .22Mf- cap in parallel to the 1 Mf tweeter- cap.
Regards
Robert Bastani
Follow Ups:
I can confirm the side wall distance that Robert talks about will make a difference in the lower regions with the baffles. I have experimented with different things and placing it next to the sidewall changed the speaker , in my case for the better. I suppose this is just the nature of a non boxed driver.I wonder if anyone has experimented with a psuedo side wall like panel attachment, possibly to both sides just behind the baffle. Could this also raise the 200 to 400 hz region for those like myself that do not have the ideal room?
By the way the speakers for the most part sound great two months in now. Though many cd's are poor quality and it lets you know it as well as the digital sound in general. Though I would rather much have these than another pair I owned a couple of years ago that were the opposite and everything was non-resolved and sounded so non-lifelike.
Hi,Prometheus allows to fill a gap in this frequency- region by the help of the woofers when you have two plate- amps. Probably you don`t get a fully flat in room- amplitude in your room but small gaps won`t affect the soundquality a lot. Common boxed designs also doesn`t offer a flat in- room response and when they are passive you have not much possibilities to tune them to a better behaviour - Prometheus leaves you a wide range of possibilities from playing around with the woofer cut- off and volume to separate placement of baffles and woofers, very easy and also easy reversible.
The speakers in general are very important because there are huge differencies in concepts, sound- aesthetics, in- room behaviour and interaction with the electronics. The electronics and cable- differencies are more subtle but also very important to get 100% out of your stereo- system. When you played around with the speakers for a while and love how they sound i suspect that the best way to go on in soundquality is to optimize the electronics and cables because Prometheus let you hear this differencies much more than most other speakers. I offer perfect matching diy- cables in a moderate price- range and i know Bill Allen offers perfect matching electronics. When you contact him i am shure Bill can arrange a possibility for you to try these items at home.Regards
Robert Bastani
I have with some interest, followed the comments made concerning break-in and what electronics work well with the Bastanis open baffle speakers. I guess its about time I chime in on this subject.
Concerning break-in I have two different successful solutions: Time and Money.1.)TIME, Put them in a closet, place them face to face, wire them out of phase, cover them with a heavy blanket and let them play for 400 hours.(16 days at 24 hours/day) Next, spend endless hours trying all the parts on hand using your experiance to see what you can cook up. Milage may vary!
2.)MONEY, Purchase a known balanced set of components/cabling/source and listen to them from day one. (I suggest: TVC's/SET Amps/Bastanis Cabling and the finest source you can afford) Assemble a balanced system from the start and it just keeps sounding better right through the break-in! From there you tweak to taste.
If I may use offer an analogy; owning Bastanis Open Baffle Loudspeakers are much akin to building a good race car. One does not simply go down to the Joe's Race Car Dealership and purchase a top performing machine. A race car and team is developed over a period of time with a single purpose in mind. There are many "levels" of racing and nobody starts at the top. The nice thing about the Bastanis Prometheus is you start out with a chassis that will allow you to compete in all leagues. Its just a matter of time, experience, and money that dictate when and what class you race in. If fuel is the music and the race coarse is in your mind. With a finely tuned engine, transmission, and proper wiring you have the formula to be a winner on any track.
The large majority of people I deal with buy production vehicles from a dealership and have no experience owning or operating a race car. This level of sport is not for everyone! It requires your full commitment and dedication from the very beginning. It's highly likely that everything you own "is not" up to the task and will have to be replaced. That is not to say you have to spend lots of money just to leave that BMW eating dust. On the contrary with a little elbow grease, a few grand, you're out there on the race track not putsing around on the public roads. The real reward is your hard spent time and money always pays off in top performance using Bastanis Speakers. No Compromise's is our motto!
Keeping "everything" perfectly balanced is the key to success "at any level" using Bastanis (100db/1 watt) open baffles speakers.
Robert, Tony, and I, and the good people of this forum, are here to assist anyone willing to enter this exciting niche of the audio hobby.
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