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HUG - here for all audio enthusiasts

At its inception ten years ago, the Harbeth User Group's ambition was to create a lasting knowledge archive. Knowledge is based on facts and observations. Knowledge is timeless, independent of the observer and can be replicated. However, we live in new world in which objective facts have become flexible, personal and debatable. HUG operates in that real world, and that has now been reflected in the structure of HUG.

HUG has two approaches to contributor's Posts. If you, like us, have a scientific mind and are curious about how the ear works, how it can lead us to make the right - and wrong - decisions, and about the technical ins and outs of audio equipment, how it's designed and what choices the designer makes, then the factual Science of Audio sub-forum area of HUG is your place. The objective methods of comparing audio equipment under controlled conditions has been thoroughly examined here on HUG and elsewhere and can be readily understood by non-experts and tried-out at home without deep technical knowledge.

Alternatively, if you just like chatting about audio and subjectivity rules for you, then the Subjective Soundings area is you. If upon examination we think that Posts are better suited to one sub-forum than than the other, they will be redirected during Moderation, which is applied throughout the site.

Questions and Posts about, for example, 'does amplifier A sounds better than amplifier B' or 'which speaker stands or cables are best' are suitable for the Subjective Soundings area. From Oct. 2016, Posts in the Subjective Soundings area will not be spell checked or adjusted for layout clarity. We regret that but we are unable to accept Posts that present what we consider to be free advertising for products that Harbeth does not make.

The Moderators' decision is final in all matters and Harbeth does not necessarily agree with the contents of any member contributions and has no control over external content.

That's it! Enjoy!

{Updated Jan. 2017}
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Sub Woofers

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  • Sub Woofers

    This is not particularly a Harbeth question, Alan, but I would value your technical opinions, as I am sure others would.

    Having moved my main system to a house in Cyprus I have for the present cobbled together something for a UK flat I will occupy a few moths a year.

    I have a Quad 77 CD Player and Tuner with the 77 Integrated Amp driving an old pair of Goodman's Maxim IIs. Not great. I add in a KEF PSW 2500 set very discretely and immediately the stereo image and general clarity seems to improve and everything is a good deal less strained.

    Am I fooling myself that I hear improvements that are more than more bass?

    What's going on?

    When using a much more modern a higher quality speaker like the P3 does a good, well adjusted sub make contributions to system clarity beyond raw bass extension?

  • #2
    Most of the energy in the human voice and obviously music too is concentrated in the middle frequencies. It's hard to imagine that improving/adjusting either end of the spectrum (the lowest or the highest frequencies) will have any real effect on the middle frequencies. As stated again recently, the cone material defines the quality of reproduction. we can't recall the Goodman Maxim 11 --- are they from the 70s? --- perhaps with paper cones? That'll be the quality limitation no matter how your ear is pulled to the low frequencies with your sub. Our guess would be that if you turn down the contribution of the sub you will return your attention to the middle/top frequencies.

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    • #3
      Subs and removing the load from the satellites?

      Originally posted by HUG-1 View Post
      Most of the energy in the human voice and obviously music too is concentrated in the middle frequencies. It's hard to imagine that improving/adjusting either end of the spectrum (the lowest or the highest frequencies) will have any real effect on the middle frequencies. As stated again recently, the cone material defines the quality of reproduction. we can't recall the Goodman Maxim 11 --- are they from the 70s? --- perhaps with paper cones? That'll be the quality limitation no matter how your ear is pulled to the low frequencies with your sub. Our guess would be that if you turn down the contribution of the sub you will return your attention to the middle/top frequencies.
      Could it be that the addition of the sub removes some of the load from the Maxims and allows them to "breathe" more? Does the KEF have a crossover which separates out the "highs"? If the sub is wired via the tape loop this could well be the case.
      Paul

      "If all else fails, read the instructions"

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      • #4
        KEF sub

        The KEF Sub is driven from the Pre-out of a Quad 77 Integrated Amp. The Maxim IIs are still being driven across the full range, but, of course, they naturally roll off in the bass.

        An old thread, but note the speakers in question are not Maxim Elevens ( I don't think they were ever made) but Maxim Twos. And yes, the bass-mid unit has a paper cone.

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