AUDIO NOTE: Zero System test review – by Jimmy Hughes

Audio Note’s Zero system is a great advertisement for the benefits of partnering a good low-powered amp with sensitive loudspeakers. It’s a winning combination of cohesiveness and integration; brilliance and detail; dynamics and attack. With each individual component being very well matched, the overall result is superb and, as we’ve already indicated, as separates they […]

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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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Professor M.J Hawksford (joint founder of LFD): Low-frequency sound source localization as a function of closed acoustic spaces

Further development of an emerging generalized theory of low-frequency sound localization in closed listening spaces is presented that aims to resolve the ambiguities inherent in previous research. The approach takes a robust set of equations based on source/listener location, reverberation time and room dimensions and tests them against a set of evaluation procedures to explore […]

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LFD AUDIO: Q/A with Dr. Bews – Interconnects and the quest for neutrality

  Q: Putting to one side for a moment your quest for absolute neutrality re your Interconnects, would it be fair to say that your Interconnects are to some extent a subtle ‘tone control”? If so, what would you recommend to tighten the bass between a solid state pre amp and valve power amp. Also […]

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LFD AUDIO: Bews views: The thoughts, opinions and observations of Dr. Richard Bews:

Dr. Bews – as I understand it, volume controls of all kinds affect sound quality in negative ways, some more than others. Is there one type of level control that’s better than all others and if so, why? Also, how do your findings impact on future LFD designs? A: All pots have different sounds, even […]

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LFD AUDIO: Q/A with Dr Bews – Does a low output impedance usually results in better defined bass sound?

Dr. Bews writes: Low output impedance for line level products (provided impedance is less than 500ohms) I believe has little or no influence on subjective balance of a product. PSU design, parts selection, wiring, circuit layout,  etc have much more influence on sound.

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Monitor Audio: Silver 100 test review

What Hi-Fi? write: If we review any more products in Monitor Audio’s sixth-generation Silver range, we may need a new thesaurus. Having reviewed the Silver 200s and the corresponding surround package, we have already used up quite a few of our superlatives. These Silver 100s are effectively the fifth member of the group to pass through […]

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LFD AUDIO: Dr. Bews discusses the 2019 integrated LE(VI)

Hello Dr. Bews. What can you tell us about this new release? 20 years of evolution of the LE range of integrated amplifiers has resulted in the new LE(VI) which takes over from the LE(V). A complete revamp of the input stage in the power section where the following: carbon composite, carbon film resistors and […]

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LFD AUDIO: Q/A with Dr. Bews – development speakers

Q: Dr. Bews. What speakers do you use during development? I use a pair of modified Celestion SL600 loudspeakers, rewired and the crossovers outside the box. These modifications helped immensely, to relieve the rather laid back, and slightly congested sound. Really I don’t think the absolute quality of the loudspeakers is that important when developing […]

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LFD AUDIO: Dr. Bews’ design philosophy

Hi Howard. You have ended up only selling LFD amps. What makes them so special and what is their design philosophy please. And no jargon please if you can. Thanks. Ralph. Dr. Bews reply: LFD Audio believe that audio Amplifiers can be most easily optimized if the basic amplifier topology is kept as simple as […]

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