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  • Pharos's Avatar
    25-07-2021, 13:33
    In 2002 the DSS gave me an ultimatum; either start production of my loudspeaker design, or go to study full time. I chose the latter enrolling in...
    152 replies | 7938 view(s)
  • Pharos's Avatar
    25-07-2021, 11:33
    Of course we are getting older, and I didn't sing Ba Ba Black sheep after the age of 4, we develop. But things do change, look at history and what QE...
    152 replies | 7938 view(s)
  • Pharos's Avatar
    25-07-2021, 09:49
    The general trend is explainable; late 80s, PWL corporately written and controlled, (polished crap), new millennium, Simon Cowell, lack of investment...
    152 replies | 7938 view(s)
  • Pharos's Avatar
    24-07-2021, 10:51
    My Hi-Fi friend and I have got through a lot of speakers in the last 50 years, many expensive as well, and what comes out is that JBLs of this...
    4 replies | 484 view(s)
  • Pharos's Avatar
    22-07-2021, 16:34
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    It is a long time ago that I looked at it Martin, and probably at 90dB. Many small Hi-Fi Choice books back.
    66 replies | 1451 view(s)
  • Pharos's Avatar
    22-07-2021, 14:36
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    Thinking further, the commercial speech bandwidth is chosen for intelligibility and is 300Hz to 3400Hz, and is used for landlines. The upper...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    21-07-2021, 22:48
    The tweeter coil will get a differential signal because it is in series with a capacitor. This waveform is spiked and slopes down in the same way as...
    53 replies | 1091 view(s)
  • Pharos's Avatar
    21-07-2021, 08:56
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    You say Martin; "I agree 3% distortion in a speaker is not a large amount but who listens at 100dB? That shouldn't be an issue in normal use surely?...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    20-07-2021, 22:02
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    The SQ quality problems I complain about were also audible on my ESS AMT 1Bs, redesigned by me using an LS 5/8 mid/woofer from the BBC, but not as...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    20-07-2021, 16:11
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    For both stereo and AV, ADAM Tensor Betas.
    66 replies | 1451 view(s)
  • Pharos's Avatar
    20-07-2021, 10:44
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    The other factor which probably applies to us all to an extent, is the speaker positioning and the room's coloration of it, most probably need to...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    20-07-2021, 08:40
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    When I was ringing up ESS, Sacramento around the turn of the century I spoke to a ldy who could not understand me, and in response I emphasised my...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    19-07-2021, 22:41
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    The BBC also seems to contract out a lot of work to what I presume are fresh media studies graduates, this giving a benefit of cost reduction for the...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    18-07-2021, 16:37
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    I absolutely disagree. My reasoning is that generally broadcasters, and even film sound recordists now either do not care much about, or are not...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    15-07-2021, 18:38
    In the 70s I used my Nelson Jones 10+10 class A into Tannoy Gold Lancs, and sometimes it clipped. This also occurred when they were used with a Quad...
    53 replies | 1091 view(s)
  • Pharos's Avatar
    13-07-2021, 20:53
    If they are driven into clipping yes, the tweeter is in threat.
    53 replies | 1091 view(s)
  • Pharos's Avatar
    12-07-2021, 21:37
    Pharos replied to a thread Quad 34 TT Earthing in Past Masters
    Quad?
    3 replies | 160 view(s)
  • Pharos's Avatar
    12-07-2021, 16:06
    Pharos replied to a thread New speakers in Blank Canvas
    Was the 801 the 80s one with squarish pods Steve? I compared those with my ESS Monitors then.
    27 replies | 1247 view(s)
  • Pharos's Avatar
    12-07-2021, 09:07
    Pharos replied to a thread New speakers in Blank Canvas
    What are the others you have had with which you compare these Steve?
    27 replies | 1247 view(s)
  • Pharos's Avatar
    11-07-2021, 09:09
    Pharos replied to a thread New speakers in Blank Canvas
    I have not been able to find any info on them Steve, But have had a high regard for Visaton for many years, what did they cost?
    27 replies | 1247 view(s)
  • Pharos's Avatar
    10-07-2021, 08:53
    Pharos replied to a thread New speakers in Blank Canvas
    They loook serious, but don't you think that it would be better not to scatter your CDs all over the carpet?
    27 replies | 1247 view(s)
  • Pharos's Avatar
    07-07-2021, 12:34
    The opposite financial trend has occurred for me.
    8 replies | 315 view(s)
  • Pharos's Avatar
    05-07-2021, 13:24
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    Back onto the subject of Radios 1,2,3,4 etc, does anyone else hear a whine on the O/P of R4? (I have recently bought a new very good tuner and am...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    04-07-2021, 12:41
    Pharos replied to a thread Superfi or madness in Blank Canvas
    The real dislike was with class B, and Xover distortion was very evident in their early days both by ear and measurement. I think now that most...
    68 replies | 1773 view(s)
  • Pharos's Avatar
    04-07-2021, 10:00
    Pharos replied to a thread Superfi or madness in Blank Canvas
    My 45% was given as a maximum theoretical efficiency.
    68 replies | 1773 view(s)
  • Pharos's Avatar
    03-07-2021, 21:39
    Pharos replied to a thread KEF LS50s - demos? in Blank Canvas
    All of those aspects annoy me also, and I wonder if as a fairly liberal person there is something wrong with me for feeling this way. I do support...
    66 replies | 1451 view(s)
  • Pharos's Avatar
    03-07-2021, 21:30
    Pharos replied to a thread Superfi or madness in Blank Canvas
    My college notes say 45% max, and my Nelson Jones 10+10 used to only just 'bubble' spit
    68 replies | 1773 view(s)
  • Pharos's Avatar
    03-07-2021, 16:51
    Pharos replied to a thread Superfi or madness in Blank Canvas
    It's a preference for many.
    68 replies | 1773 view(s)
  • Pharos's Avatar
    03-07-2021, 15:15
    Pharos replied to a thread Superfi or madness in Blank Canvas
    Depends how poor one is, and many of us would leave a power amp on all the time for SQ reasons.
    68 replies | 1773 view(s)
  • Pharos's Avatar
    03-07-2021, 11:34
    Pharos replied to a thread Superfi or madness in Blank Canvas
    I seem to remember talk of making class A illegal a while ago, and this may influence people's regard for them. There is so much movement ATM on...
    68 replies | 1773 view(s)
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About Pharos

Basic Information

About Pharos
Name:
Dennis
Biography::
I have been interested in audio engineering since teens, (ex BBC engineer), and have worked on audio, and particularly loudspeaker design for about 32 years, this providing both torture and ecstasy.
Location::
Seaford UK

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