Recent content by bwraudio

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    "Fast" and "slow" subwoofers: can we put them to bed?

    Here is another explanation from Peter Moncrieff of International Audio Review Opposites in Reactance Consider next reactance, as another example of opposite behavior. Conventional subwoofers have large reactance, plus severe reactance changes, at low frequencies. This...
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    Martin Logan Neolith

    Try (tympani 4 loudness satie) this should work, spelling error
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    Martin Logan Neolith

    I have never had any complaints from neighbors utilizing the rotary sub.
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    Martin Logan Neolith

    Loudness, Tympani 4, Rotary The tympani 4 bass panels when properly braced and frame modified (I bolt the braces down through the floor and each of the two panels are bolted together) can play at very high levels. As I also mentioned, the Tympanis are rolled off below 30 hz which lowers...
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    Martin Logan Neolith

    Martin Logan Summit, Magneplanar Tympani, Rotary sub The effective crossover point for the Tympani bass panels is 250 hz, which works out well with the Summits. Yes, I have one rotary sub which extends up to 25 hz and the Tympani bass is filtered below 30 hz. Doing this reduces distortion...
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    Martin Logan Neolith

    Coherency, huge soundstage My answer to the Neolith hybrid is combining Magneplanar Tympani IV bass panels with Martin Logan Summits (woofers not used) and extend the bass down to 1 hz, with a rotary subwoofer. This results in total coherence, a huge sound-field, bass that has power...
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    Ever try bass traps? You ever put in bass traps and completely remove them?

    ASC tube traps Using ASC tube traps makes a huge difference with bass transients and quality of bass. All corners from floor to ceiling have large bass traps, as well as mid points. Around the entire room I use mid range tube traps, which are 3 feet apart. Midrange clarity is superb and...
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    Summit X revisited

    LL21 (1), it takes a large room (my room is 29'L x 20'W x 11'H) with great acoustics. (2) Many ASC bass and midrange traps around entire perimeter of room. (3) I have the speakers across the long wall, with seating distance 12' away. (4) A huge...
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    Summit X revisited

    Summit and Maggies, TRW Rotary I agree with you on the midrange of the Summits. For bass I disconnect the woofers and use Magneplanar Tympani IV woofer panels and below 25 hz a TRW rotary sub! This combination gives one bass that is truly coherent, powerful, with depth and a huge...
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    Stereo Integrity 24" IB Subwoofer- new displacement king of subwoofers

    TRW-1 Rotary Sub Yes, Bruce Thigpens TRW-1 Rotary Sub
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    Stereo Integrity 24" IB Subwoofer- new displacement king of subwoofers

    I also owned the Hartley 24" subwoofer and used them in infinite baffle installations. The first Hartley sub was built into a closet and provided bass below 40 hz to my Klipschorn system. When I moved into my new home I used two Hartleys built into the floor and that extended the bass...
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    What's the best sounding system(s) you have ever heard that are not your own.

    Apogee Scintilla's, stages with Hill Plasma and two Rotary subwoofers. A huge bank of Krell power amps
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    Infinite Baffle and the Audiophile

    I hope you are successful in the future of integrating a Thigpen Rotary subwoofer into your system. There is, simply put, nothing like this sub. One has to have a lot of space behind the rotary for it to work properly, (I vent it into my basement, which is very large). The enclosure...
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    What's the best subwoofer? REL? JL AUDIO? Velodyne? Wilson? Something else?

    I have also used 2 Hartley 24" subs in a infinite baffle (mounted in the floor). At the time these subs worked quite well, but it is all relative. Comparing these subs to what I now use (TRW-17 Rotary sub) is like comparing a VW to a Porche. Very low distortion, power handling, transient...
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    What is the most highly resolving speaker you have ever heard?

    Plasma The Hill Plasma loudspeaker from 700 hz on up will outperform anything on the market today. Resolution, detail, transients are a so very real, without fatigue (once heard one gets spoiled with other loudspeakers). To this day there is no other loudspeaker except (lansche plasma is...
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