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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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 […]
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 […]
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 […]
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 […]
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.
Currently 230v but can be converted to 100v / 120v by Dr. Bews @ £64 + vat One previous owner. Cosmetically excellent, functioning superbly. 12 months parts and warranty warranty. Auction ends at 12 Noon on Saturday 16th March and if not sold by that point goes onto ebay. Low reserve price and low buy-it-now […]
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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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 […]
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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Today I re-commissioned my Tannoy Edinburghs after almost five years of storage. I’ve always known they were bass shy, but I didn’t know to what extent exactly as I didn’t have any measurement software at my disposal back then to check them. Other 3149 driver owners on the Tannoy forum have reported an increase in […]
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 […]