Good! It's afternoon in Canada I guess.
I've read your opinion on the directions for braces, and you're sure right. I will look into that. I've built the speakers with removable back panels, just to experiment easier.
After sanding and oiling I will glue felt on the inside walls and fill most of the cabinets with wool. I live in a rural area. Lots of sheep;-)
Sounds like a good idea?
I've read your opinion on the directions for braces, and you're sure right. I will look into that. I've built the speakers with removable back panels, just to experiment easier.
After sanding and oiling I will glue felt on the inside walls and fill most of the cabinets with wool. I live in a rural area. Lots of sheep;-)
Sounds like a good idea?
Early evening now. Jeff and i live in the left-most large city in BC on the left coast of Canada.
The seminal work (that i saw) that leads to the specific bracing guidline give is largely summed up by this one graphik. A lot of building since has refined techniques (across he diy community — i am seeing “my” braces in more & more designs). This assumes the goal is to push (potential) resonance sup high in frequency where they are unlikely to get excited.
dave
The seminal work (that i saw) that leads to the specific bracing guidline give is largely summed up by this one graphik. A lot of building since has refined techniques (across he diy community — i am seeing “my” braces in more & more designs). This assumes the goal is to push (potential) resonance sup high in frequency where they are unlikely to get excited.
dave
Dave's comment about my (less sturdy)bracings got me thinking. Today I doubled up with plywood bracing with magnet support. The knuckle test shows clear improvement. I think I will leave it like this.
I'm excited about finishing my first speaker project, but I will not rush anything. Next up is damping with felt and wool.
I'm excited about finishing my first speaker project, but I will not rush anything. Next up is damping with felt and wool.
Finally my «A26 extended» is alive.
I glued felt on the walls, bitumen on the largest surfaces - and stuffed in a lot of Rockwool.
They sound excellent to me, but a little different compared to my Harbeth SHL5+. I really like the SEAS' bass response. Faster, more accurate, and more physical than the Harbeths. I find the sound neutral and balanced. During the first hours of use, I felt the tweeter was too pronounced. Now it's much better. Is it my ears or the burn-in of the tweeter and the Jantzen Superior Z-Cap?
I glued felt on the walls, bitumen on the largest surfaces - and stuffed in a lot of Rockwool.
They sound excellent to me, but a little different compared to my Harbeth SHL5+. I really like the SEAS' bass response. Faster, more accurate, and more physical than the Harbeths. I find the sound neutral and balanced. During the first hours of use, I felt the tweeter was too pronounced. Now it's much better. Is it my ears or the burn-in of the tweeter and the Jantzen Superior Z-Cap?
I see you're using the standard parallell crossover (series cap to tweeter, nothing to woofer). If your amps of choice have relatively high Zout, I'd encourage you to explore a series crossover. It really changes the sound profile of this pair of drivers, but it doesn't sound good when driven by a low Zout amp like an Aleph clone.
Thanks, appreciate your input. I will look into alternative crossovers and maybe other caps after getting familiar with the sound. The first thing I will change is the amount of damping material.
The speakers are driven by a Luxman L-550AXII class A. Sorry, for not understanding Zout, but the damping factor is 200.
I have an experimental serial crosssover schematic for these designed by Håvard Sollien who is the technical director at Seas lying around somewhere, willl ask him if it's ok to publish.
What surprises me about the seas a26 driver is that it doesn't measure well in the THD department but actually sounds very nice. Im willing to bet it has to do with the lack of xover that would normally interact with the high VC inductance. While this woofer doesn't measure like it, the sound is more pleasant and organic than many 3 way speakers I've heard. The T35C002 is after all my favorite large HF dome.
Not surprising since Geddes has shown no correlation beween the distortion we measure.
dave
To hammerz : Good work ! I suggest you place the crossover parts on the back panel for easier access.
To any knowledgebable person : I am in the process of constructing a modify A26 reimagining ov89 : 18 mm double baffle with an approximative volume of 38L.
Questions :
To any knowledgebable person : I am in the process of constructing a modify A26 reimagining ov89 : 18 mm double baffle with an approximative volume of 38L.
Questions :
- Did the port dimensions needed to be adapted since its lengh is double and the volume of the enclosure change ?
- Can I moved the port to the back ?
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