Announcement

Collapse

INTRODUCTION - PLEASE READ FIRST TO UNDERSTAND THIS FORUM!

"This Harbeth User Group (HUG) is the Manufacturer's own managed forum dedicated to natural sound from microphone to ear, achievable by recognising and controlling the numerous confounding variables that exist along the audio chain. The Harbeth designer's objective is to make loudspeakers that contribute little of themselves to the music passing through them.

Identifying system components for their sonic neutrality should logically proceed from the interpretation and analysis of their technical, objective performance, since deviations from a flat frequency response at any point along the signal chain from microphone to ear is likely to create an audible sonic personality in what you hear. That includes the contribution of the listening room itself. To accurately reproduce the recorded sound, as Harbeth speakers are designed to do, you would be advised to select system components (sources, electronics, cables and so on) that do not color the sound before it reaches the speakers.

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. This may or may not be what you wish to achieve, but on the face of it, any deviation from a flat response - and the frequency balance of tube amplifiers are usually influenced by their speaker load - is a step away from a truly neutral system. HUG has extensively discussed amplifiers and the methods for seeking the most objectively neutral amongst a plethora of available product choices.

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 and pragmatism, HUG cannot be expected to be a place to discuss the selection, approval or endorsement of non-Harbeth system elements selected, knowingly or not, to create a significantly personalised sound. 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 offerings there. There is really no on-line substitute for time invested in a dealer's showroom because 'tuning' your system to taste is such a highly personal matter.

Please consider carefully how much you should rely upon and be influenced by 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, loudness and room treatment, not necessarily leading to appropriate equipment selection and listening satisfaction for you.

If faithfully reproducing the sound intended by the composer, score, conductor and musicians in your home and over Harbeth speakers is your audio dream, then understanding something of the issues likely to fulfill that intention is what this forum has been helping to do since 2006. Welcome!"


Feb. 2018
See more
See less

Bryston vs LFD, the problem of low power

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Bryston vs LFD, the problem of low power

    My story in a few words. Purchased a set of HL5 plus speakers and hooked them up to my NAD C 372 receiver. Nice nice sound.

    Got curious and purchased a Bryston 2.5B SST2 amp and a wow moment! Further curiosity led me to getting an LFD Mark V since I read so many positive reports on the synergy with Harbeth.

    What a disappointment it was for me. Didn't even sound as good as my NAD. The Bryston rated at 135w blew it out of the water. Sent it back very rapidly. The NAD at 150watts did not have the clarity transparency the Bryston has.

    IMHO the LFDs problem was its low power. Alan Shaw is correct. The more the better.
    Now I sorta wished I had gotten the 400 watter Bryston lol.

  • #2
    Big is always better

    Based on my own experience through the years, I assure You that generally speaking, the more the better: this jumped the first time at my ears while comparing two power amplifiers from the same maker and with identical circuitry (Perreaux PMF5150 - 500W/ch versus 2150 - 200W/ch).

    Even playing at low listening levels, the big brother sounded more refined and detailed, less grainy.

    Start considering that beefier amplifiers will normally operate with less stress of their power supply (which seriously influences the overall sound!!!!!) drivers and power devices.

    The above from the point of view of an humble electronic engineer, not an audinut.

    Try, if possible, the big Bryston and let me know!

    Cheers

    Comment


    • #3
      Adequate power to drive speakers

      Had a similar experience with C7ES3's and LFD MK V. While music was fantastic at lower listening volumes (<90db), the soundstage began collapsing above that level indicating (to me) LFD is better matched with higher sensitivity speakers. After returning to separates with higher output, music is fantastic again throughout all listening levels.

      The C7ES3's are remarkable.

      Comment


      • #4
        The benefits of more power

        I recently replaced my old but refurbished 2x45 watt QUAD 303 with a refurbished 2x140 watt Quad 606 mk2. Playing softly I do not think I could hear much difference, but playing more loudly I certainly could. But what was I hearing? The effect of actually playing louder than I would have done with the 303, or better sound quality at the same loudness? Without a volt meter there is no way of knowing. My hunch is that it is probably a bit of both.

        In the end, that does not bother me, because the room is big (60+ sq m), and I did need more power. Happily also, watts can be cheap. I bought my second hand Q606ii for 350 euro from a retired QUAD NL service engineer who had completely refurbished it. Ready for the next 25 years, as he put it. Admittedly it is a bit challenged cosmetically.

        Comment


        • #5
          My LFD

          Originally posted by macroaudio View Post
          Had a similar experience with C7ES3's and LFD MK V. While music was fantastic at lower listening volumes (<90db), the soundstage began collapsing above that level indicating (to me) LFD is better matched with higher sensitivity speakers. After returning to separates with higher output, music is fantastic again throughout all listening levels.

          The C7ES3's are remarkable.
          Here no problems at all with my LFD 0 LE III (min. 50W rms/ch) with C7es3 in my well damped 4x5m room

          Comment

          Working...
          X