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No, no, tell me it ain't so. Relegating my beloved (and cheap) MCM 55-2981 to a has been? So sad.On another note I wonder about vibration from the low mid. I have quite a bit of baffle vibration on my Hestias. All three drivers are isolated from the 1 1/2" baffles with gasketing tape. The frames are relatively still but the baffles pick up a fair amount of vibration. Maybe it is the cumulative effect of the end of the dog's wagging tail but I feel most of it at the top adjacent to the mid. It appears to be originating from the mid. I wonder if further isolating the lower mid on the SLs might warrant a consideration. I'm sure I'm getting ahead of the design process once again, but I thought I might just mention it for consideration. I know vibration is a no-no. I don't know how much is acceptable. This is not to criticize the Hestias which I think sound great.
interesting!!what would be other alternatives for the 10" pro woofer? is this mandatory? i mean size and sens?henry
matevanaWould that be the Dayton Audio PA255-8 10" Pro Woofer? The price isn't too bad.I'll look into C channel on the back of the Hestias. That is a good idea.
The final baffle has a pleasing shape to my eye. That would be 5/4" spruce in dimensional terms? It looks to be 13" or more at the widest? Where did you find that? What kind of spruce and please don't tell me Sitka. Is the top baffle fairly vibration free?I'll let you finish before I ask the question and I don't mean how much did it all cost.You must be pleased. Looks like another well integrated design.Peter
beautiful!will you do some measurements?
That being said, let me rant a bit about one thing with all due respect to others. I have heard speakers that are ruler flat that I would also describe as un-involving. As a musician I am perhaps more sensitive to the weight and timbre of various instruments than many. What drew me to OB initially is their ability to involve the listener, as cliche as that might sound. Pianos should not just sound good, but they should sound like pianos. If you close your eyes, you should be able to picture an 8' deep grand piano in the listening space, as opposed to a pleasant sounding recording of the same. A well executed OB design will do this. I guess my point is that much emphasis is placed on measurement which is certainly quantifiable. Perhaps as important is a speakers ability to draw you in. I'm sure many of the full-range driver enthusiasts will agree. While many of the psycho-acoustic properties are less quantifiable, and therefore harder to measure, there is also something to be said for designing for interpretation as a goal.
I must say that I agree with this. I am a fairly experienced DIY loudspeaker builder but at the same time I have little experience in the measurement and frequency analysis department. For this very reason I have decided to up my game. My wife was kind enough to give me SoundEasy for Christmas. I am now in the process of setting up a small lab in my shop as well as a measurement bay in my back yard. I am going to learn to measure drivers as well as assembled speaker designs and analyze the response characteristics. I have been a mechanical design engineer for 30 some years and I am looking forward to finding out new and surprising developments through my own research. My tastes rarely parallel convention when it comes to design work whether it be loudspeakers or anything else I have designed.
Hi I have been following this hestia sl build as well as some of your older ones. What Yung amps are you using? I am thinking of getting a pair before they go off sale at PE. I was thinking of a pair of the yung 300 or 200 but do you recommend the ones with 6db boost or not? I am leaning more toward a pair of the 200 with boost but want to know more from you before I order. Also are there any other options for the lower woofer? Thanks KEEP UP THE GOOD WORK! The table upper baffle looks AWESOME! I want a pair in my living room.