QUAD: The Z Stars

They say ….. Like the S Series, which launched in 2015 to widespread acclaim, the new range combines advanced Kevlar-coned bass and midrange drivers with a specially designed ribbon tweeter. The Z Series takes this fundamental design to a whole new level, however, re-engineering the drive units, crossovers and cabinets to provide the perfect bridge […]

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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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The Transcendental Waterfall – Guitar Excursions 1963-1967 (180 Gram 6 LP Box Set) by John Fahey

Features: • Numbered, Limited Edition – 2000 Copies. • 180g Vinyl • 6LP Deluxe Box Set • Stunning Graphic Design cover art • T-shirt • Poster • Postcard The Transcendental Waterfall – Guitar Excursions 1963-1967 is a 6-LP box set drawing from John Fahey’s best, and most influential, period. Included in the set are Blind […]

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Active versus Passive loudspeakers

Gentlemen – can you explain the difference between active loudspeaker systems and passive ones? Yes – but nowhere near as well as Mr. Mark Wheeler can. You can re his definitive (well, in my opinion at least) explanations HERE and HERE   EDITORIAL NOTE: The opinions expressed in the above post do not necessarily reflect […]

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RAIDHO: Danish loudspeaker revolutionary Raidho to make Hi-Fi Show Live debut

They tell us ….. High-end hi-fi distributor Decent Audio is delighted to announce a new exclusive UK distribution agreement with renowned Danish loudspeaker brand Raidho. On 29th-30th October a selection of Radio’s stunningly ambitious speakers will make their UK debut at this year’s Hi-Fi Show Live in Windsor. Come along and find out what’s being […]

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Ask Mr. H: Roger Modjeski (Beveridge RM1 preamp and more)

Gentlemen – what can you tell me about this legendary engineer and was he the guy that built the RM1 preamp? Yes, he is the designer of that legendary unit He struck me as seriously grumpy No way does he want to supply the European market with anything, apparently. He has a most interesting history […]

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COLIN WONFOR: JLH Class A headphone amp build help needed!

Dear Colin, I’d buy from you but as far as I can see one4audio. don’t make one – or do you or will you? Anyway, I’m planning on building a JLH class A headphone amplifier but am a bit confused regarding the transformer wiring/connection. The pcb requires 15v-0-15v AC power input. I plan on using […]

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Ask Mr. H: The WORST sound as experienced by Howard Popeck

Howard, what’s the worst sound you’ve ever heard? Well I guess this is a bit tongue in cheek, right? You want to know about audio makers perhaps? Too many frankly. Especially ones that should have known better. Usually from UK based makers that have just four letters in the names. However, non-audio worst sounds that […]

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From the archives: Yes – I was there says Howard Popeck: The Who, Chuck Berry and, err …. Bodast.

In conversation earlier this year with a sales manager of one of my suppliers of an audio supply company, as always with this gentleman I’m pleased and delighted to know that his primary driver is not selling product to me, although he does take this seriously, but the sheer love of music. In that curious […]

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LFD AUDIO: Q/A with Dr. Bews. Problem (and solution) re Audio Research driving PA2M

Q: I have an lfd pa2m amp and find there is a hum .any way of stopping this problem?am using audio research ref 2 pre/amp connected by balanced cable but balanced from pre– then balanced cable connects to single ended cable connecting to lfd amp.thank you A: Dr Bews replies: I guess it’s the balanced […]

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Very Limited 25CD West Coast Bundle by Various Artists (Grateful Dead, Airplane, Spirit, Joni, Burrito’s…)

We are told ….. The Flying Burrito Brothers- White Line Fever – The Record Plant, Hollywood, September 19th,1971 (CD) Following Sneaky Pete’s decision to leave the band in April ’71 for a more lucrative day job as a session player in L.A., Al Perkins was drafted in from Texas band ‘Shiloh’. Their third album ‘The […]

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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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The opera novice

Originally published January 2012 I grew up in a household where not a note of classical music was played. I must have heard some at school, but all I remember of music classes was mucking around on a synthesiser playing the Batman theme tune. As a teenager watching telly, I recall humming along to The […]

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Ask Mr. H: A proposed UK start-up valve maker. Was I too harsh?

I received this question. My answer follows. I retrospect, I might have been a bit harsh. But then again ……..? Hi. A well known valve supplier and I have discussed putting (a new valve amplifier line) into production. Given your experiences with valve amplification would you be interested in selling same amps? Well, I think […]

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