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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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Channel Imbalance

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  • Channel Imbalance

    Hi all, I'll be getting my long awaited P3ESR in 2 weeks time! As a guy who is extremely sensitive towards channel imbalance issue, I would like to know which component in a system has a higher percentage in contributing towards the channel imbalance issue? Thanks.

  • #2
    Though many would say a Preamp but I think room plays a big role in channel imbalance. I would list them as follows:-

    1) Preamp

    2) volume control

    3) room

    4) distance of each speaker to listener

    5) The source (i.e. cd player, LP player etc etc) -easily detectable by switching the cables

    6) The loudspeakers - easily detectable by switching the cables

    7) Interconnects or cables due to damage or bad solder -easily detectable by switching the cables

    8) Our ears. Easily detectable by a visit to your ENT specialist.

    Maybe that's why most preamps come with balance control.

    ST

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    • #3
      Hi ST, thanks for your info. I conducted some simple test in my asymmetrical room and found out that I get channel imbalance on certain frequencies.

      BTW, it would also be nice to know how closely Harbeth speakers are matched during the assembly stage. Perhaps Alan can share us this info?

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      • #4
        Did you use a test CD to find out channel imbalance on certain frequencies? Did you interchange the L/R speakers? And it is possible for the bass to be concentrated on one side of asymmetrical room. I used to notice that when I placed my speakers in my previous L shaped room. BTW, how serious is your problem because I usually use a good vocal test CD for accurate placement and don't really pay attention to precise centre after that. I have noticed in most CDs the vocal centre drifts to left and right between tracks. I wouldn't notice them unless I am looking for it but then that would kill your music enjoyment.

        ST

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        • #5
          Hi ST, I downloaded test tones of various frequency, connected my laptop to an external DAC. When I measure the SPL, I only turn on one channel at a time. By measuring it from my listening position, I can record the measured result at various frequencies. If the SPL is positioned just right in front of the speakers, the measurement result from both speakers are pretty accurate (it's still subjective to reflected wave, but minimal). I've tried to swap the source channel, swapped speakers, etc...the channel imbalance is definitely caused by room acoustic. Nothing much I can do since most of the stuffs in the room can't be moved. I just hope the P3ESR which I'm getting next few days time is perfectly matched. :)

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          • #6
            Originally posted by miniwatt View Post
            I just hope the P3ESR which I'm getting next few days time is perfectly matched. :)
            Better matched than any room could ever hope to be...

            Comment


            • #7
              Hi Miniwatt

              it should be perfectly matched. if there are still "imbalances"

              1. as STHLS5 has mentioned, the balance control comes in handy
              2 try moving the less loud speaker forward a little or try
              3 sitting slightly more left or right for the "less loud" speaker to compensate (its like a balance control)

              i think i have a similar problem. my right ears seem to be picking up more energy than the left, and seems to be happening on totally different systems hence starting to belief there might be something wrong with the hearing.

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