I was chatting with Frederik Carøe in Denmark this morning by email while waking up with some nice hot coffee (medium roasted Kenya beans). I wanted to give Frederik an update on how things are going with the Duelund-WRSE Project, and ask Frederick for any suggestions he might have on improvements and such.   I... Read More »

Stephaen sent an early morning email: "I'm going to stop at the El Fat Cat Grill taco truck and get us lunch, and I'll meet you and Pete at your place at noon." While the El Fat Cat Grill is actually a taco truck, referring to it as 'taco truck' is like referring to the... Read More »

In the Duelund-WRSE Crossover Project we are using the Duelund Coherent Audio Silver / Carbon resistors exclusively in the circuits (seen on the far right in the photo below). Resistors are inherently simple electrical devices that are used to control the flow of current in a crossover circuit by providing a constant resistance that does... Read More »

I'm up early this morning drinking coffee and listening to the Beatles' Rubber soul LP from the new box set through the Sophia Electric 91-03 300B integrated amplifier. Particularly considering the 91-03 hasn't even been playing for an hour, its sounding really good. Very natural, sweet, and musical. Today Pete Riggle & Stephaen Harrell (6Moons) are coming over to... Read More »

As most of you know, the Sophia Electric 91-01 300B mono amplifiers that I reviewed for Positive Feedback Online back in January of 2011 reignited my interest in SET amplification, because they made incredibly beautiful music with my Tannoy Westminster Royal Special Edition loudspeakers. Richard Wugang, the President of Sophia Electric, just sent me a... Read More »

Today's Fresh Catch is the new Duelund Coherent Audio CAST Mylar Capacitor. For those of you who have been following the developments of the Duelund-WRSE Project, where we are building custom outboard crossovers for the Tannoy Westminster Royal SE loudspeakers using the state-of-art Duelund Coherent Audio CAST components, you know that Frederik Carøe created a... Read More »

I can't think of a better way to spend a Saturday than eating wood-fired pizza, drinking some nice Italian & Argentinian wines, and laughing & talking with Pete Riggle and Stephaen Harrell while breadboarding the Duelund-WRSE crossovers. We started with a full set of the Duelund CAST components for the crossover. (seen below sitting on... Read More »

The ASR Basis Exclusive phono equalizer review is now live at Positive Feedback Online here. Here's a few snippets from the review: "Like the Emitter II amplifier, the ASR Basis Exclusive phono equalizer is a remarkable product that will delight those vinyl lovers lucky enough to own one." "The Basis Exclusive consists of two chassis... Read More »

Pambos just sent me an email with an excellent suggestion about posting photos of peoples' Westminster Royal or Canterbury loudspeakers in their listening rooms, based on the interactions we've had for upgrading the crossovers on those two speakers. We've got a lot of Tannoy owners that drop by, and I didn't want to exclude anyone,... Read More »

In my last post I described all of the attention to detail that goes into producing the hand-made & labor intensive Duelund CAST capacitors, and in this post I want to tell you about the Duelund CAST Air Core Inductor that we will be using in the Duelund-Westminster Project as shown in positions L1 and L2 below. An inductor... Read More »

Many of you who read Jeff's Place consider the Duelund Coherent Audio CAST capacitors to be the best capacitors in the world for audio applications, so I thought it would be interesting to learn about them in a little more detail. I asked Frederik Carøe (founder of Duelund Coherent Audio) if he would tell us... Read More »

I know that a number of you have been inquiring about upgrading your Tannoy Canterbury SE loudspeakers with Duelund components, so I thought I'd post this note from Pambos: "Today I visited my customer with the inboard upgraded Canterbury crossovers. I took some pictures. Are not the best pictures because I didn't remove the crossovers and... Read More »

A number of you who have been following the Duelund-WRSE Project have been asking about if it would be possible to arrange for a group purchase of the Duelund Coherent Audio components at a discounted price to use for crossover upgrades for your Tannoy loudspeakers. Frederik Carøe (founder of Duelund Coherent Audio) became aware of... Read More »

The energy & excitement behind the Duelund-WRSE Project is really ramping up and I'm thrilled about all of you who are joining in to do your own Tannoy loudspeakers project at the same time! I will document every step of the project here at Jeff's Place so everyone will have real-time information flow, and I... Read More »

I got a message from FedEx this morning notifying me the Duelund Coherent Audio components from Frederik Carøe - the founder of Duelund Coherent Audio - for the Duelund / Westminster Royal Special Edition Project had arrived and were being held for pickup. I had a little break from meetings in the office so I went straight... Read More »

I've been working hard on writing up listening impressions for the review of Friedrich Schaefer's ASR Basis Exclusive phono equalizer over the weekend, and I thought I'd take a moment to give you a little behind the scenes glimpse about my interim thoughts and how things are going. In case you haven't been following along,... Read More »

All around cool guy and Editor of Positive Feedback Online, Dave Clark, just sent me an e-mail about the new Beta Positive Feedback Exchange buy, sell, trade, and discussion site and asked me if I'd help get the word out. Dave and David over at PFO are great guys, and through the Exchange site they're trying to... Read More »

I just heard from Frederik Carøe - the founder of Duelund Coherent Audio - that the exotic perfectionist Duelund Coherent Audio components for the Westminster Royal SE Crossover Project are on the way to Jeff's Place from Denmark!  Below is a teaser photo Frederik sent from the start of parts production. Not since the days of The... Read More »

As I mentioned in my last post on upcoming reviews, the Fab Four of Mhdt Labs: Mouse, Horse, Dog, and Tiger, sent me their Stockholm V2 USB DAC to review for Positive Feedback Online. As you know, I've reviewed both the Mhdt Labs Paradisea+ and Havana for Positive Feedback Online, and I've really liked what I've heard. You... Read More »

Happy Sunday everyone!  😀 Here's what's in my current review queue and what you can expect to see reviewed at Positive Feedback Online in the future. Next in the queue is the ASR Basis Exclusive phono equalizer that is the matching equalizer for the ASR Emitter II Exclusive Version Blue amplifier just reviewed at Positive... Read More »

This Saturday morning I was up at 4:30 AM getting ready to start the review process for the ASR Basis Exclusive phono equalizer. Now that's dedication! Reviewing is a long process of equipment setup, comparative listening to other components, listening for enjoyment, shooting photos, and writing (and re-writing) articles. I repeat the process until I... Read More »

I'm gearing up to start the Positive Feedback Online review of the ASR Basis Exclusive phono equalizer over the weekend, but just for kicks tonight I installed my Fi 300B mono amps, Leben RS-100U line stage, and the New Valve Order SPA one phono equalizer for a little vacuum tube listening session. What a sweet... Read More »

If you read the review I wrote for Positive Feedback Online about the remarkable ASR Emitter II Exclusive Version Blue amplifier designed by Friedrich Schaefer in Herborn, Germany, you know that in that article I discussed how high-performance audio breaks naturally into three groups of performance attributes that relate to their overall performance level, or... Read More »