steve 57

Wammer
  • Content Count

    507
  • Joined

  • Last visited

Community Reputation

55 Excellent

4 Followers

About steve 57

  • Rank
    Wammer
  • Birthday Private

Personal Info

  • Location
    east yorks, , UK
  • Real Name
    steve

Wigwam Info

  • Turn Table
    td124/frs64s /spu
  • Integrated Amp
    Pre war
  • My Speakers
    Bigger than the norm

Recent Profile Visitors

909 profile views
  1. steve 57

    So have speakers really got that much better?

    Your too kind, cheers
  2. steve 57

    Measurements, Compatibility and Ears 👂

    It's not new, it was known about in the 1940s I've seen it written in some of my old books that it was not recommended to plug the control unit into the power amps power supply.(mono) Then in the late 50 onwards leak had the stereo 20 and plug in pre running on the one power supply.. and set the standard Now you can run an amp like this and sound good if you lots of inter stage and inter channel smoothing but the best power supplies are low impedance Regulation helps but how it is implemented is key. Class A is another can of worms in push pull amps I'm not sure it's always the best sound. But again that depends on implementation.
  3. steve 57

    Measurements, Compatibility and Ears 👂

    The voltage waveform that goes into the amplifier. It's not the same when it comes out and goes to the speakers.
  4. steve 57

    Measurements, Compatibility and Ears 👂

    Its power supply modulation. Its not really a distortion... Its not really a problem with test tones played on one channel. But it's one of the many, but a major factor, that stops many amplifiers that measure well but not sound so good and is much more of a music destroyer than a bit of low order harmonic distortion What my point is there is a whole raft of technical reasons for amplifiers and speakers which have supposedly low distortion but don't sound like it.. And its not always about distortion it's cancellation. I'm more than happy to chat about my findings and take on things next weekend.. Cheers..
  5. steve 57

    Measurements, Compatibility and Ears 👂

    In simple terms I'm talking about the output of an amplifier being contaminated by the signal that it's trying to reproduce... You can measure the signal all over the power supply ..so you get cross talk... with the power supply being the culprit So in most amplifiers there are positive and negative voltages all at the same time (Push & pull!) It all gets mixed up in the output. That causes cancellation of both distortion and signal. Now I'm aware the above will take some getting your head around.. but please measure the a.c. signal at points around your dc power circit in your amplifier. Then think about the effect that this may be having on the signal before declaring me a nutcase.. I was shocked when I did those measurements a few years ago. The proof for me is that separating out the contaminant... ie the power supply, dramatically improved the amplifier More life like clarity and more accurate dynamics I'm aware there a whole raft of other issues with amplifier design and topologies.. nothing's truly perfect
  6. steve 57

    Measurements, Compatibility and Ears 👂

    Amplifiers should be looked at as a series of amplifiing events within the amplifier Most amplifiers split the signal then add it together again, every aspect of an amplifier, if not designed with great skill does result in cancellation of the signal. Distortion measurement is about additions .. not subtraction when music is playing It's the subtraction that makes the music less lifelike The're too much of people falling for the hifi trades Low distortion measurement is the final frontier .. it's far more complicated than that..and because it's difficult to measure the shortcomings of most amplifier designs.
  7. steve 57

    Measurements, Compatibility and Ears 👂

    I wonder why... Measurments of a simple set of frequencies is very different to actual music If cancellation was measured whilst playing music, I think the results would be no supprise to those who are happy to use their ears as a measure of sound quality.
  8. steve 57

    Introduction

    Good to see you here Steve.. I think the last time I saw you was at a nebo meet.. and a few years ago at Owston.. Are you coming down to the wam show? Be good to catch up. ( I hope your the Steve I think you are!!! )
  9. steve 57

    So have speakers really got that much better?

    I don't think is so much personal. But but what's coming out is personal opinion as to what a good speaker is.. I think the truth is there has all ways been good (and bad) speakers.. High end speakers from 70 years ago still have devotees today and are very sought after. And taking tannoy for example (there at quite a few makers) the drivers from 60-70 years ago command the highest prices. That's says something.. and it's not about age, with tannoys its about the difference efficiency makes to the sound. The trouble is thats where people get confused accuracy and lifelike should mean the same thing? But how many supposedly accurate speakers don't sound lifelike.. forget the recordings for once, we are talking speakers ?
  10. steve 57

    So have speakers really got that much better?

    To be fair to them they where really good speakers but well out of my price range.. they did like some types of music better than others. To be fair to my speakers just the drivers in them cost a fair wedge but nothing like the cost of the maxonics... what I have done is put speakers that match in both sound quality and efficiency that work extremely well together... and small cabinets considering the drivers sizes ☺ More on topic I have a pair of quad corner ribbon speakers that would put most modern speakers to shame.. the ribbon in them is quite something.. better than my decca Kelly's.
  11. steve 57

    So have speakers really got that much better?

    I'm genuinely looking forwards to hearing the 8c's at kegworth.
  12. steve 57

    So have speakers really got that much better?

    Now your being kind to me Ric.. I was lucky enough to compare mine to a pair of maxonic tw11000b' field coil speakers a couple of years ago. I was very pleased on the day.
  13. steve 57

    So have speakers really got that much better?

    The trouble is you can't hear what's missing.... I made my daughter a very heavyweight bass cab, the last gig she played the headliner band said there was not enough room on stage for both bass set ups, she had to use her own amp and their speaker.. she was ok with that until she tested it. It was an expensive modern cab, 4 x 10" long throw drivers, which are In fashion at the moment She was so disapointed compared to her rig.. in comparison to her short throw high efficiency 18" + 12" + horn, she said there was a real lack of definition to the sound especially in the lower notes. I use the same 18" drivers in my speakers and apart from the disadvantage of the size and weight, I would not swap them for any long throw, lower efficiency driver. The thing is, I can hear what's missing and how the sound changes with these drivers. I would go as far to say I don't think they are accurate reproducers of sound, even though they can sound impressive..
  14. steve 57

    Big Spaces For Big Systems

    That was up in Doncaster at one of my meets John. That was a very different experience to the wam show, but I would guess the result of visiting is very similar in that you hear equipment that possibly inspires you to change/ build something new/ reinforces the fact you are content Both are a very good social events.. I look forwards to both It will be good to catch up again John..
  15. steve 57

    Big Spaces For Big Systems

    I think your right about the volume. If we keep it steady i agree we should all be able to run at once and I would think if the end rooms systems point away from the partitions it may help somewhat. At the audio talk meets, we all use a single 60'x40' ish size room. Some of the smallest systems still sound good in there but people do sit closer. The main concern with a big room is it can highlight bass boom problems when you crank it up. Hopefully we don't have any issues with that.! If your all happy, I'm ok with the rooms above. All the rooms are similar size within a couple of metres anyway. Looking forwards to it... Cheers steve