KennethSwauger · Moderator


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  • Re: This might be fun: thoughts about Mapleshade's products (specifically, wires)?

    For a while there was some discussion at Mapleshade to produce some of their more popular recordings on vinyl. I think people were encouraged to vote for their favorites. I tried, in vain, to get him to release master tape copies. He said the custom EQ he uses would cause problems with duplication. I've found the CDs at second hand record stores, especially around B-more.
  • Re: This might be fun: thoughts about Mapleshade's products (specifically, wires)?

    His recording venue is this old mansion in Maryland and the artists come there and stay for the few days the recordings take, he makes the experience very personal and works to get a feel of what art they want to create.
    In looking at what he does with the elevated drums I've always felt that most subwoofers would sound more realistic if they were lifted off of the floor a foot or two.
  • Re: This might be fun: thoughts about Mapleshade's products (specifically, wires)?

    There's a Mapleshade store in downtown Baltimore in an area that used to be called "antique row". I don't know if there's still enough antique shops to still call it that or not. I've collected a number of his CDs, mostly jazz and one or two blues, and they are among the most realistic I've heard. Especially the live recordings at the no longer around Ethel's Place. Pierre has a true love of music and treats his artists with respect and it shows in his recordings.
    He uses a simple approach, 2 track Sony open reel (TC-880) pressure zone microphones attached to angled sections of plexiglass, elevated platform for drum kit and his own record/playback EQ. From talking with him he takes his deck to the CD mastering studio so the digital transfer can be done simply. The results just plain sounds like real instruments being played.
    I've not heard any of his audio products, but I respect his CDs a great deal.
  • Re: LSiM 707 bi-amp question

    The lower set of binding posts connect to the lower three bass components, the two woofers and the 6.5" mid-bass driver. The upper set of binding posts connect to the tweeter and mid-range components. I wouldn't recommend removing any of the internal crossover components.
    Cheers, Ken
  • Re: Electrolytic cap performance / behavior vs. others in a crossover?

    Electrolytic capacitors (both aluminum and tantalum) have series resistance and inductance and parallel resistance and inductance but also various combinations of series diodes and parallel diodes. If an electrolytic capacitor is properly polarized then most of the series and parallel diodes are biased on or off and the capacitor, more or less, behaves like a film capacitor. But not completely.
    Thus using an electrolytic capacitor in a speaker crossover design with near
    zero DC volts on both sides leads to various kinds of distortion, most of which are very audible.
    The larger the capacitor value the more series inductance it has and the performance at higher frequencies suffer (that may have been the cause of what you measured). A fix for this is a parallel reasonable value film capacitor.

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