HUG - here for all audio enthusiasts


"This Harbeth User Group (HUG) is the Manufacturer's own managed forum dedicated to natural sound, realisable by controlling the confounding variables between tthe microphone and the listeners' ears.

For example, the design of and interaction between the hifi amplifier and its speaker load can and potentially will alter the sound balance of what you hear. To reproduce the sounds captured by the recording microphones, as Harbeth speakers are designed to do, you would naturally select system components (sources, electronics, cables and so on) that do not color the sound before it reaches the speakers.

Identifying components for their system neutrality should, logically, start with the interpretation and analysis of their technical, objective performance, as any and every deviation from a measurably flat frequency response at any point along the serial chain from microphone to ear is very likely to cause the total system to have an audible sonic personality. That includes the contribution of the listening room itself.

HUG specialises in making complex technical matters simple to understand, aiding the identification of audio components likely to maintain a faithful relationship between the recorded sound and the sound you hear. With our heritage of natural sound, HUG cannot be really be expected to guide in the selection, approval, endorsement or even discussion of equipment that is intend to introduce a significantly personalised sound to the audio signal chain. For that you should do your own research and above all, make the effort to visit an Authorised Dealer and listen to your music at your loudness on your loudspeakers through the various electronics offered there. There is no on-line substitute for that time investment in a dealer's showroom.

If you desire to intentionally tune your system sound to your personal taste, please consider carefully how much you should rely upon the subjective opinions of strangers. Their hearing acuity and taste will be different to yours, as will be their motives and budget, their listening distance, listening loudness and listening room treatment, not necessarily leading to appropriate equipment selection and listening satisfaction for you.

Alternatively, if faithfully reproducing the sound intended by the composer, score, conductor and musicians over your speakers is your audio dream, then understanding something of the issues likely to fulfill that objective is what this forum has been helping with since 2006. Welcome!"

Jan. 2018
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Monitor 30 - Radial or Radial2 cone?

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  • Monitor 30 - Radial or Radial2 cone?

    I was just looking at the pages of both the domestic and professional version of the monitor 30, and the domestic version says it's build around the Radial cone technology, and the pro version states it's build around Radial2 cone technology.

    Is this correct?

    And also, is there a large difference between Radial and Radial2?

  • #2

    Perhaps someone from Harbeth could give the answer?


    • #3

      Apologies for the delay in replying. The 'RADIAL2' that you quote in your posting is in the introduction text of the M30 pro, not in the specification table.

      As we see it, the current position is this -

      Harbeth downloadable sales brochure
      shows (domestic, veneered) Monitor 30 as having a RADIAL cone.

      The Harbeth website shows the Monitor 30 (domestic) as having a cone of RADIAL technology here

      These are both correct. The M30 pro intro text is wrong and will be fixed.

      The difference is apparent if you inspect the woofer. The RADIAL2 woofer has a larger, 'softer' radius where the surround leads into the half roll. This subtly improves cone to surround to chassis damping at the top end of the woofer's working range.
      Alan A. Shaw
      Designer, owner
      Harbeth Audio UK


      • #4
        Keep going!

        Thank you for clearing that up. No apologies needed, how many owners of a premium manufacturing company would take the time to answer questions of single users this day anyway? It's very clear to me that you're a person who takes pride in his product, and puts as much effort as possible in making sure its users are equally satisfied.

        It's so nice browsing this forum and learning new things every week, e.g. how a seemingly simple question about boomy bass lead to you instantly providing us with an in depth article about room acoustics featuring multiple videos.

        Many thanks for all of that, I hope you can keep doing what you're doing for years and years to come!