Colin Wonfor’s Clinic: My meter isn’t going to zero any more on ohm ratings

Dear Colin. My meter isn’t going to zero any more on ohm ratings, and it apparently can’t be calibrated. It’s a fairly low-end Radio Shack autoranging model. I saw that the “what do you need for repairing equipment” on a US thread suggested a Fluke 114 or 115. Is that still the best, or do […]

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Colin Wonfor’s Clinic: Amplifier buzz even when power switch is off!

Dear Colin, I need some theories and hopefully answers please. This is a situation, neither I, not anyone who I asked, have encountered before. It is very simple and puzzling at the same time. Here it is: There is a faint buzz coming from the amplifiers, NOT the speakers, barely audible from a few feet […]

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Colin Wonfor’s Clinic: The Art of Electronics (Horowitz & Hill) 3rd ed; still the best?

Dear Colin, The Art of Electronics (Horowitz & Hill) 3rd ed… … as DIYers probably already know is now out, only 25 years after the 2nd ed. My copy arrived today. I’m not trained in electronics and make no claim to more than a passing knowledge, but have enjoyed these authors’ style of presentation since […]

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Lecson AP1, ProAc, Celef, Lentek Monitors, Sonab, LS3/5a and Harbeth HL1 Mk3

Hello Howard. Memory test! I remember a couple of years ago you recommended a speaker that mated particularly well with the Lecson AP1 power amplifier.  Hope all is well, John Hello John. Oh wow. At my age, trying to remember? You are kidding, right? On a more serious note though, here are the ones that […]

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Ask an expert: LAT Power distribution strips

The idea that a power distribution strip, even a heavily built one like the LAT can make a difference to the sound, let alone an improvement is ridiculous. Where’s the science behind the claims? LAT power distribution block have in my experience always made a positive difference. The degree of improvement, in terms of background […]

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STAX – deteriorating gauze on vintage earspeakers; ask an expert

  How can I replace the gauze on my old STAX earspeakers? These are the key points: 1.    The gauze is purely cosmetic. It is lightweight and open so as not to influence the sound. However because of this it offers no physical protection nor protection from dust. Or put differently, you can safely use […]

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Ask an expert: Stax “The sound was pretty unimpressive, – dark, slow, and very uninvolving and not very transparent”

Dear Howard, I hope you are well. Yup – pretty good (but far from pretty!) all things considered. I remember you shut down simply Stax in the late 1990s, and I can remember reading somewhere that one of the reasons for that might have been because the quality control of the Stax equipment you were […]

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BURTON SOMERVELL: Their remarkable and short-lived hybrid cone & ribbon speakers

I have just read the article ” Interview with the Gods”, and loudspeakers “Burton Somervell” were mentioned.  I can not find any info on them.  Can you help ! Thank you so much for your enquiry. Usually I’m able to answer incoming queries to everyone’s complete satisfaction first time. But sometimes I don’t. And sometimes […]

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