Are the days of the audiophile (as distinct from audio supermarket) retailers numbered?

Gentlemen. in the age of the internet where increasing numbers of retailers are offering Buy-without-risk / Sale-or-Return for a month, are the days of the audiophile (as distinct from audio supermarket) retailers numbered? No. Because there will always be a small interest in having good equipment and basically it’s very difficult to buy good equipment […]

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COLIN WONFOR: Replacing ceramic resistors in Monitor Audio GXC350 speaker

Hello Colin. Great series so far. Thank you. A little background info: I own a Monitor Audio GXC350 centre speaker and have discovered the midrange driver produces no sound. Swapping the driver over with one from a GX200 confirms it’s ok. A volt meter shows there’s no output to the midrange driver which points to […]

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COLIN WONFOR: Battery drive for amplification

Hi Colin. Fashions, come fashions go and from time to time the market has been presented with battery powered devices from preamps, phono stages and power amps. As far as I’m aware you’ve never thought of anything battery driven. Is any particular reason for this? I’m wondering if you think the claimed sonic benefits are […]

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COLIN WONFOR: Zero autoformers; how to measure impedance please

Dear Colin, Zero autoformers; how to measure impedance please? I got a pair of Speltz zero autoformers recently but when I measure the total impedance, my multimeter sees only 0.4-0.6 ohm no matter what I do. It seems the multimeter could only read the DC resistance from the autoformer itself but not the total impedance […]

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COLIN WONFOR: Do very good interconnects compensate for an only so-so CD player?

Dear Colin, An audiophile friend made the following argument to me: “Stop looking for a new CD player. With a very good to excellent high-end interconnect you will not only improve the performance of the CD, but other downstream components.” I had to disagree with my friend claiming a $400 or $500 IC is not […]

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MERIDIAN: Their ultra-rare 107 power amp and … a powerfully incontinent white dove

Q: Gentlemen, whatever happened to the Boothroyd-Stewart ‘Orpheus’ pre and power amp? Did they ever make into production? The preamp was a gorgeous looking precursor to the ‘rainbow’ Lecson pre. Very ’70s (should suit André) with a Nextel suede finish. Can’t find an image, but it had the sort of design aesthetics that would, I’m […]

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MERIDIAN: Their ultra-rare 107 power amp and … a powerfully incontinent white dove

Q: Gentlemen, whatever happened to the Boothroyd-Stuart ‘Orpheus’ pre and power amp? Did they ever make into production? The preamp was a gorgeous looking precursor to the ‘rainbow’ Lecson pre. Very ’70s (should suit André) with a Nextel suede finish. Can’t find an image, but it had the sort of design aesthetics that would, I’m […]

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COLIN WONFOR: What is it that causes output transistors to blow?

Dear Colin, Generally speaking, what is it that causes output transistors to blow? Do they tend to die a natural death? Bad drivers? Emitters? Problems with the rectifier circuit? Assuming there wasn’t shorted speaker wires or excessive moisture. The amp bias and the +/-77 voltage was fine before they blew. It happened on power up. […]

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STAX: Their 717 & 727 energisers

Hi Howard, Very briefly, could you tell me if there is any significant improvement in sound between the older SRM 717 and the newer 727 solid state amplifiers. Also, I would be interested if you have any opinions on third party energisers for Stax earspeakers. I’ve seen several mentioned such as KGSS and Rudistor (at […]

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