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HUG - here for all audio enthusiasts

INTRODUCTION- PLEASE READ FIRST TO UNDERSTAND THIS FORUM!

"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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Need help: is my compact 7ES broken ?

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  • Need help: is my compact 7ES broken ?

    Hi,

    I bought an used pair of compact 7ES3. Upon delivery from post office, one of the speaker has no sound, I fiddle around with speaker wire connection and it fixed the problem. Now after 2 weeks of listening, I very occasionally hear some kind cracking/leaking sound as if something is loose or not good electrical connection. Last night I was listening Bath Well tempered Clavier and the speaker that i have doubt consistently give me this cracking sound. Initially I suspect that there is the connection problem, so here is what I tried:

    1. swap left/right speaker connection -- same
    2. take the banana plug connector out on the speaker cable and connect to the post directly the bare wire - same
    3. Tried another speaker cable- same
    4. Bring another set of speaker and use the same setup -- there is no cracking sound

    This morning I tried it again with same setup: on the first track, the problem seems go away. But after a while when I play the next track, it comes back again and pretty consistent. I almost feel that there is a loose connection inside the speaker somewhere and it gets loose after some vibration.

    Can someone give me some idea what may go wrong ?

    Thanks

    {Moderator's comment: have you spoken with your supplied about this first before posting here? What did they say? Are these new or used? Is the Warranty registered? How old are they?}

  • #2
    Buying second hand

    Originally posted by maple-k330 View Post
    Hi,

    I bought an used pair of compact 7ES3.

    {Moderator's comment: have you spoken with your supplied about this first before posting here? What did they say? Are these new or used? Is the Warranty registered? How old are they?}
    Planet of Sound in Ottawa should be able to provide you with some help on this as they are the Canadian distributor for Harbeth. As the speakers were purchased used, no warranty would be available.

    Buying speakers used is always taking a bit of a risk. Hopefully its nothing serious.

    Comment


    • #3
      Warranty? Claimed in perfect condition?

      Originally posted by maple-k330 View Post
      ...

      {Moderator's comment: have you spoken with your supplied about this first before posting here? What did they say? Are these new or used? Is the Warranty registered? How old are they?}
      I bought this used. The guy who sell this to me claims that it is in perfect working condition. Not sure about warranty registration but I do have the certificate and serial number. Will check with the local vendor about warranty status (I guess I just need to provide a serial number) ?

      Comment


      • #4
        Buying second hand .... a lesson?

        Originally posted by Don Leman View Post
        Planet of Sound in Ottawa should be able to provide you with some help on this as they are the Canadian distributor for Harbeth. As the speakers were purchased used, no warranty would be available.

        Buying speakers used is always taking a bit of a risk. Hopefully its nothing serious.
        Thanks, Don. I learned my lesson. Will contact planet of sound today.

        Comment


        • #5
          Warranty is not transferrable it seems

          This speaker is bought new from Toronto Harbeth dealer new about a year ago, according to the seller. Called the planet of sound Ottawa and they asked me to talk to the toronto dealer. They don't do any repair but they can recommend audio shops. Called the Canadian distributor in Toronto and I was told that the warranty is not transferable, still waiting for a response on exact history of the speaker if there is anything they can help with. This is quite a set back to me.

          Comment


          • #6
            Fix yourself may be an option?

            Your description sounds like simple connection problem between rear terminals and network circuit board. Do you have the tools/skills/interest/time to open the speakers and attempt diagnosis/repair yourself?

            The Warranty situation is clear and on this HUG. As you are the second user there is no warranty for you so if you can make a self-diagnosis and repair you will not alter the warranty position as it has expired already.

            It is rare to see Harbeth on the used market. Harbeth is usually the last speaker system the owner will buy. When you see it second hand you have to ask yourself 'why?'.

            Comment


            • #7
              Legitimate Reasons for the Used Harbeth Market

              Originally posted by HUG-1 View Post
              When you see it second hand you have to ask yourself 'why?'.
              There may be many legitimate reasons. Downsizing, job loss, upgrade to newer Harbeth model, etc. I'm very much in favour of the second-hand market. Anything that encourages re-use has to be a good principle. It's only a significant risk to the buyer if s/he chooses not to meet the seller personally beforehand.
              Ben from UK. Harbeth Super HL5 owner.

              Comment


              • #8
                Thanks for all suggestions. Just an update: the speaker is fixed at a local repair shop. After we take out the back panel, we re-solder the critical solder joints on PCB and also improved the binder post electrical contact.

                The seller claims that the speaker runs perfectly before packaging. I don't have strong reason to not believe him as he has good feedback. The only explanation is that the stress of shipping push it to the edge.

                I totally agree with BAS-H about buying/selling used. Personally this will be my last set of speaker (my previous speaker costs 1/10th lasts me 17 years).

                {Moderator's comment: We checked the records. These speakers were made nearly three years ago so someone is kidding someone. We cannot recall a faulty crossover in 25+ years of production and we consider our assembly work to be of the highest quality ex-factory. Picture of crossover to follow later.}
                Last edited by maple-k330; 31-05-2011, 06:03 PM. Reason: remove comments that's not factual and only guessing

                Comment


                • #9
                  Close-ups of crossovers ex-Harbeth

                  All crossovers made in the last ten years or so by the same three people should look like this ex-Harbeth. If they don't then they've been modified after production.

                  Points to note:

                  1] Solder resist (dark areas) to prevent short-circuits top and bottom
                  2] Gold plated visible circuit islands
                  3] Double-sided pcb
                  4] Reinforced links to bond top surface to bottom surface and to guarantee electrical contact around binding posts
                  5] Tie-wraps to hold heavy components in-place

                  Not shown ~~~ QC sticker, signed, after electrical and visual pass and finally hot glue applied all over to prevent rattles and buzzes.

                  This is a luxury job.
                  Attached Files

                  Comment


                  • #10
                    Modified Harbeth?

                    Originally posted by maple-k330 View Post
                    ...
                    {Moderator's comment: We checked the records. These speakers were made nearly three years ago so someone is kidding someone. We cannot recall a faulty crossover in 25+ years of production and we consider our assembly work to be of the highest quality ex-factory. Picture of crossover to follow later.}
                    Dear Mod:

                    Not sure what's going on. The fact of matter is: one of the speaker shows signs of bad electrical connection and cracking sound, and after the repair work I mentioned above the problem goes away. It could be that whoever I bought the speaker from opened the case and did some modification. I have no way to tell.

                    For my speaker, the big inductors on the crossover are exposed (did not have the black wrap), and I'm not sure about whether I see the cable tie. Unfortunately the local dealer in Ottawa does not have interest to take a look of the speaker and that's why they referred me to the 3rd party repair shop. I would love to have an authorized Harbeth personnel to confirm for me if there is some modification done on it.

                    Comment


                    • #11
                      Second hand...

                      Originally posted by BAS-H View Post
                      There may be many legitimate reasons. Downsizing, job loss, upgrade to newer Harbeth model, etc. I'm very much in favour of the second-hand market. Anything that encourages re-use has to be a good principle. It's only a significant risk to the buyer if s/he chooses not to meet the seller personally beforehand.
                      I agree with BAS-H and other members that already expressed their faith on the second-hand market.

                      Here in North America, there is always of everything on the used market. Audiogon is a good example. You can find everything. Many Harbeth are on the site everyday.

                      I guess that many people had the chance to buy a used pair, discover the brand, fall in love and be conquered for life...

                      Sébastien

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