This morning I'm writing the introductory part of the Lefson resistor article for Positive Feedback while listening to music, with plans to write up listening impressions on how the Lefson resistors performed in my Altec A7 Voice of the Theatre project crossovers tomorrow, and hopefully write a summary & conclusions section before the end of the weekend. I hope... Read More »

Yesterday after I rewired the high-frequency circuits of my Westminster's Duelund CAST crossovers with the Duelund DCA20GA tinned-copper tone wire, I was so excited by the results that I decided I wanted to rewire the low-frequency circuits too. It was spur of the moment decision to rewire my crossovers, so I didn't precondition any of the... Read More »

I'll start with the other stuff. I traveled to Washington, D.C. this last week, where we received a Secretarial Award for our US Belle II High Energy Physics project at KEK, the particle physics laboratory in Japan. A little bit of background: The Belle II experiment’s global collaboration involves more than 600 members, 65 institutes,... Read More »

It's always a treat to hear from Jim Smith, and as many of you know, I have the greatest respect for Jim and his many contributions to the worlds of music & audio, and am just generally a big fan of Jim's! Jim's demos at CES over the years have always been impressive, and you have... Read More »

There's so many good audio things happening right now I thought I'd better write a quick survey for you about all the things that are in play, and my 'roadmap' for writing about it all in the near future. ¸¸.•*¨*•♫♪¸¸.•*¨*•♫♪¸¸.•*¨*•♫♪ As you know, the last year or so has resulted in a significant revelation for me... Read More »

First off I want to give a shout out to one of my audio heroes, Jim Smith, who gave Jeff's Place and Duelund DCA16GA a mention on his blog, Get Better Sound, is this issue of his Quarter Notes news letter: "Jeff Day is a trouble-maker! He keeps finding things that I have to try.... Read More »

I've got good news! I just heard from Chris at Parts ConneXion and he told me that he's now stocking the Switchcraft 3502AAU RCA plugs at the same price as Mouser ($3.99 USD each) to offer an affordable alternative for those wanting to build DIY interconnect needs. I also just heard from Frederik Carøe at... Read More »

This weekend I'm hoping to get in some more listening time with the various wire adventures I've got cooking, so hopefully I can share some more listening impressions with you before too long. It's already shaping up to be a busy weekend, but hopefully I'll be able to get some writing in for you. Keep checking in on... Read More »

I made up pairs of 2-meter interconnects with the new Duelund Coherent Audio DCA20GA tinned-copper tone-wire with my favorite affordable RCA’s, the Switchcraft 3502AAU RCA’s, soldered together with Kester '44' rosin core. I made up two pairs of 2-meter interconnects with the DCA20GA, the first with pair single runs of Duelund DCA20GA pin-to-pin and ground-to-ground, and a second... Read More »

It's always an exciting day here at Jeff's Place when something arrives from Frederik Carøe at Duelund Coherent Audio in Denmark, and in today's case it is the arrival of the hotly anticipated Duelund Coherent Audio DCA20GA tinned-copper tone-wire! For those of you who haven't been following the developing story of tinned-copper tone-wire, let me fill you... Read More »

I've got a couple of updates for you from Frederik, and there's good news! The Duelund DCA20GA tinned-copper cable is getting ready to be wrapped in its oil-soaked and baked cotton dielectric, and the first batch of the Duelund CAST tinned-copper capacitors are shipping this week. "Metal for DCA20GA wire is now done. Finished wire... Read More »