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In Reply to: RE: Beautiful. posted by Brad225 on November 02, 2023 at 10:26:06
Those are some unique room treatments.
What are the spiked items on the walls ?
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2022/03/30 Historical Records CENSORED
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They are DIY diffusers.
An electrical engineer friend that rebuilds every piece of audio equipment that comes to him brought a couple over one day.
I didn't expect much out of them except for the fact that anything Phil touches works amazingly well.I hung them from my absorption panels and was stunned at the improvement to the sound. After that I built more until I am at the state I am at now in the picture of my room.
They are plastic martini glasses without the bottom. Glued to 1/4" foam core and painted.
One of my wires tennis friends came into the room and asked if it was some kind of
50 Shades of Gray thing going on.These are speakers he designed and assembled though I did all of the woodwork.
Edits: 11/03/23
Assuming this is the second system to the ESL room, and is more than suited to continue the planar sound signature of the Big Boys but at a more casual setting.Not many would incure the cost of RAALs to use as a portion of the treble duties as the two (LCF ?) ribbons are highly capable in there own right.
The cone drivers appear to be some of the newer SOTA cross woven units with eyebrow raising strength to weight ratios.
He designed to a specific hi performance requirements and you executed the panel and enclosure work. Both are to be commended on the design, execution and details.
Would love to hear this in full song. Your big panels room is a whole other level though
Edits: 11/03/23
This is my electrical engineers system at his home.
The only speaker I know for sure are the super tweeters and they are LCY K100.
I know the main ribbons he rebuilt once it got them. He replaced the magnets with
neodymium magnets that was quite a process in it self.
The crossover network is 4th order Butterworth and extremely complicated. From the time he started the them he has modified them over 50 times while listening and testing.
He is an amazing talent.
A year ago he offered to upgrade my ARC 610t amps to KT120 from 6550 tubes. Once he started looking at them he said he would like to replace old parts that didn't test properly before he did the upgrade.
He ended up all of the Caps many resistors, transistors, diodes and relays. At last count close to 250 parts in each amp.
He ran into one issue that added an extra 5 weeks to the project. The short story was that during the original build at Audio Research they had more orders than they had parts for and made a design change to some amps and never included it on the schematic. I meant that he could not get the voltage to adjust properly to the bias circuit.
He finally got some information from an engineer at ARC that was there at the time and he have Phil the information he needed. I had 2 different schematic amps with consecutive serial #. I was amazed at the commitment Phil had to figure out the issue.
I effectively have new amps that sound much better and put out about 1/5th the heat with the new
KT120 tubes.
Sorry for the length of this post.
