Lots of nice records mixed and mastered on these monitors. I use professional MAIN studio monitors that is capable to reproduce bass from 38Hz - this is more than enough for me (and I don’t listen to digital) can check the manual for my Tannoy "15 DMT mkII here. And I don’t mess with warped LPs unless the warp is minuscule and I love the particular recording. Could be because this system is in my basement, with concrete flooring over earth, or it could be because my turntables are well isolated and quiet. They are pretty much static at all times, visually, from my listening seat.
Because I am aware of this pumping tendency, I am often staring at the KEF B139 woofers built into my transmission lines, while I am listening to music. The TL cabinets I am using I built in something like 1971. I still use transmission line woofers to support the low bass response of my Beveridge 2SW speaker panels. And on occasion my woofers iused to pump visibly in those days.
This is because the transmission line is a ported design in which the woofer is completely free at low frequencies. When I was once in the presence of IMF himself, he pontificated that all preamplifiers should have a subsonic filter built-in. Specifically I bought Irving M Fried (IMF) speakers in the early 1970s, because I thought they had unusually natural low bass response, and they were darn good above those frequencies as well. I was an early fan of transmission line woofers. I think dynamic and crusty have very good ideas about what might be going on. You say you like the sound better than your digital sources, so what's to worry about? Or to upgrade your turntable and arm.īut if the flapping changes in time with the music then I am inclined to say this is just your analogue system doing its job. Or to check the arm and cartridge are well matched and not causing resonance. Or to check the tightness of the cartridge fixings (go easy here though). Or to check the bearings in your arm can move freely but do not have any jitter. You may need a rumble filter or to clean and re-oil the bearing. Try playing an unmodulated LP if you have one - i.e with a groove but no music. Yes, you need to look at your turntable rig. If the former then don't listen to Miller who says your home is being destroyed by invisible vibrations - stand on the floor in your room in silence - can you feel them? Probably not. Lots of helpful thoughts, but so far no-one has asked the right question.ĭo the bass driver cones flap the same all the time, whatever you play, or do they flap in line with the timing and intensity of the bass in the music.
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