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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: DJK you never answered-reproducing 8hz, 10hz and 16hz posted by Xover on September 23, 2000 at 06:35:14:
You are asking a good question about the recordings actually available.No music of course.Mostly sound effects recordings.Thunderstorms,steam locomotives,car engines starting up and doors slamming.Reiner's CSO recording of 'March to the Scaffold'(Berlioze)was of course very popular for all the timpani.'Lime House Blues' from Sheffield in 1968 drove everybody nuts with the close miked timpani that the percussionist took the tension off the head after striking it.I think your real question is what speakers would do justice to these recordings and how did they work.Every audio nut has either seen or heard about 12' square exponential horns that were over 20' deep that go to 25hz,but they are not practical,and 25hz is only 25hz.My first exposure to hi-fi was a pair of EV6's around 1959.These were mini versions of the Patrician,if a speaker the size of a deep freezer could be considered a mini,and had only an 18 rather than the 30" woofer.With room gain they were only 6dB down at 16hz,a touch of eq and there you are.My father still owns these with the addition of a few polyprop caps in the networks.While waiting for his new HK amp to arrive we had to suffer with a McIntosh MC75 borrowed from the lab at his work.Real bass nuts had a pair of cabinets with four 15's per box.If you unhook the eq from a Bag End ELF or a Velodyne 18 you will find an Fc of ~80hz,the rest is eq.The only real difference I see now is the tradeoff of making the boxes 1/10 the size by using 10x the power.A 200 cu ft box with an EV30W is way cool but I sold mine two years ago when I moved to a smaller place.Ditto my RCA Olson bins,also known as Shearer horns.I sold my 300 watt Optimation amps about five years ago because they used eight 8417 each.I still have a spare Optimation output transformer if you have a use for it.Each amp was on two chassis with the output transformer one being a 10 1/2" x 19" rack mount.It has output taps to 1/2 ohm.The Krondhite went in 1988,I only had one and was never able to find a mate.I still own three McIntosh amps.
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Follow Ups
- Re: DJK you never answered-reproducing 8hz, 10hz and 16hz - djk 09/24/0000:14:42 09/24/00 (1)
- Thanks for the info! {nt} - xover 07:51:51 09/24/00 (0)
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