Seattle/ Puget Sound DIY Show

[olsond3]

A fun time for sure. I got home and my wife asked to see pictures. I was too busy running my mouth and speakers and didn't take a single one. If you have any, please share here. The sound systems in the room with the Ark mural were amazing. Unfortunate scheduling had a funeral service going upstairs in the afternoon, so we had to tone it down at the end. I don't think we were loud enough to wake the dead, but I like to think will be possible someday.

 

[Dave R]

A fun time for sure. I got home and my wife asked to see pictures. I was too busy running my mouth and speakers and didn't take a single one. If you have any, please share here.

I made sure the battery in my camera had a full charge . . . but forgot to use it also.
There were a few folks taking pictures, so hopefully there will be some before long.

There was an amazing quad-amped 4-way system in the main area, with multiple LEDs lit up (reds and yellows and blues, oh my!) Hope someone got some pics of that.

 

[ItMightGetLoud]

Had a great time and heard some really good systems. I took lots of pictures, but I don't have notes about the components. If you see one of your projects in a photo, please add a description. I'll try to sort them out so that each post has pictures of a particular project.

The main meeting room had Dana's active speaker system with digital crossovers.

 

[ItMightGetLoud]

Here are a few pics of a beautifully built little amp. Didn't get to hear this one, and I don't know who made it. Maybe the owner can post some details.

 

[ItMightGetLoud]

Dave's headphone amp sounded great with the Sennheisers.

 

[ItMightGetLoud]

Some amazing metalwork on display here. Tube amp chassis machined from brass plate along with some speaker stands and footers.

 

[ItMightGetLoud]

......and some cables made with miles of tiny-gauge wire from the same builder as the amps and stands in the previous post.

 

[ItMightGetLoud]

An excellent preamp project. I believe it is designed around a 6H30 tube.

 

[ItMightGetLoud]

This one is a mysterious little box with a single connector on the front panel. In the back we can see a power transformer and a small tube lurking in the background. Didn't get to hear this one either. Maybe the owner can add some detail.

 

[ItMightGetLoud]

Renan's ladder dac is being fed by a laptop server using a Dante ethernet connection. Excellent sound!

 

[ItMightGetLoud]

I believe this one is one of Rene's creations. His amps always sound wonderful. Didn't get to hear this one at the event. I think there were some technical difficulties.

 

[ItMightGetLoud]

Audio Precision test equipment checking out an Airist R-2R dac.

 

[ItMightGetLoud]

Howard brought two pair of speakers, and they sounded great being driven by his McIntosh amp. I think the digital source was a RaspberryPi server.

 

[ItMightGetLoud]

There were also some tables with stuff for sale: some speaker drivers, tubes, transformers, and open reel tapes. Also for sale was the last available pair of Uniphase Audio S-8000 speakers which the designer was demoing at his house nearby.

 

[Dave R]

Thanks for all of the great pictures!

Dave's headphone amp sounded great with the Sennheisers.

https://www.diyaudio.com/forums/att...6695874-seattle-puget-sound-diy-_dsf6856-jpeg

Yes, the hp amp circuit was designed by Rene' for the Sennheiser HD600 headphones and the 5842 triodes that I wanted to use. It uses 0D3 (150V regulator) tubes along with the 5842 output tubes, and a Khozmo 48 step attenuator. The case is made with padauk and walnut.

Thanks to Renan for providing music from his server and DAC. The overall SQ for this combination was wonderful.
https://www.diyaudio.com/forums/att...6698343-seattle-puget-sound-diy-_dsf6858-jpeg

Ain't DIY audio great?!!

 

[Dave R]

Also for sale was the last available pair of Uniphase Audio S-8000 speakers which the designer was demoing at his house nearby.

https://www.diyaudio.com/forums/attachment.php?attachmentid=777385&d=1566700447

I had a chance to listen to these amazing speakers. A very unique omni-directional design, very efficient, and very detailed sound. Quite a treat to listen to these.

 

[diymv]

This is Rene's "Ten-Why" pre-amp. The mysterious box below with the single connector in front and tube/transformer inside is the tube-rectified power supply for this pre-amp. Excellent sound from one of the most linear and great DHT tubes, 10Y. I believed this pre-amp also works with 801/801A tubes. DHT preamp at its best!

 

[renatus@britten]

Here are a few pics of a beautifully built little amp. Didn't get to hear this one, and I don't know who made it. Maybe the owner can post some details.

Yes, it's a preamp using the directly heated 10Y triode tube. Had some parts that looked like they would work together. Otherwise, I'm not sure why I built it; thus the "Ten Why" designation.

 

[renatus@britten]

I believe this one is one of Rene's creations. His amps always sound wonderful. Didn't get to hear this one at the event. I think there were some technical difficulties.

Another project that came together as a result of "having some parts that might work together". Single-ended, choke loaded, parallel 6KG6 pentodes puts out ~3 watts and warms the room at the same time. Not recommended for duplication because of global warming. I built it so you wouldn't have to!

 

[ItMightGetLoud]

Not sure why some of the photos I posted are rotated 90 degrees. They all had the correct rotation on my computer before I uploaded. Also, in the "preview post" screen, even though the thumbnails were rotated, the full size photos displayed correctly when I clicked on the thumbnails. Anybody know how to fix this?