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 will be writing up the results of the Duelund-WRSE Project as a full reference-quality article for publication at Positive Feedback Online so those who can’t participate right now will be able to duplicate the results of the project in the future.
I just got a note from Frederik Carøe (Duelund Coherent Audio in Denmark) telling me that this project has inspired him to produce a new product – a 200 uF Duelund capacitor to use in the low-frequency portion of the WRSE crossover: “We’re going to do some custom new product 200uF for you, for the sake of completeness … You can start without them , we’ll ship them next week.”
I want to thank Frederik Carøe again for providing the Duelund components for this project, and I’m really excited to hear about the new capacitor that he is developing for the low-frequency crossover part of the project. I really appreciate it, and the project would have been impossible for me without Frederik’s involvement. Thank you Frederik!
There has been another exciting development for the Duelund-WRSE Project this morning: Mark Coles of Sablon Audio in London, who has also been advising me on this project about wires and connectors, and makes the wonderful Panatela component speaker cables that I reviewed in Issue 63 of Positive Feedback Online, has told me he wants to donate some custom made Panatela cable runs to go from the WRSE drivers to the outboard crossover. Once again I am completely blown away! Thank you Mark!
Long time Tannoy enthusiast Frank Rodgers also uses the Panatela component speaker cables for his Westminster Royal SEs, and he has asked Mark to make him another pair to serve as the internal wiring from speaker drivers to external crossover too. The idea is to connect the wiring harness Mark is making directly to the speaker driver’s connecting wires so there’s no degradation from the stock Tannoy internal connectors, or tag blocks, and then connecting it directly to the external crossover at the other end. A totally purist approach that minimizes signal degradation. If you’re interested in doing the same thing with your Tannoys you can email Mark Coles about making you a wiring harness too.
Here’s what I’m thinking of for a path forward for the Duelund-WRSE Project:
1. Determine what remaining supplies need to be ordered for the project (this weekend). On the shopping list are Neotech hookup wire in teflon and WBT crimp sleeves to connect wires. (Mark Coles tells me the WBT crimp sleeves sound better than solder connections made with leaded WBT silver solder, so we’ll use the WBT crimp sleeves wherever we can).
2. Do a basic layout of the low & high-frequency sections of the crossover (this weekend).
3. Burn everything in with the Cable Cooker (over the next week or two). I talked to Alan Kafton about using his Cable Cooker device to precondition the components and wires used in the project to minimize the run-in time. Alan has provided me some guidance which I’ll provide more details about in a future post.
4. Remove the low & high-frequency boards from the Westminster Royal SEs and determine the length of internal/external wiring required to reach the crossover from the speaker driver.
5. Bypass the WRSE high-frequency controls.
6. Temporarily setup the stock crossovers as external crossovers as the rest of the components and wires are being conditioned on the Cable Cooker (next weekend).
7. Finalize layout of the conditioned components.
8. Build a final exterior crossover chassis. (I am thinking of something similar to the Acoustic Revive quartz isolation platforms for a chassis for the crossovers).
9. Take care of any remaining details.
Those are my thoughts for the path forward off the top of my head. Each step listed (and the ones I have no doubt forgot to add) will be fully described as we go along.
Here’s some more photos:
Thanks for stopping by!