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Re: 18rbx100 reviewNeil,Doubling excursion is a (simulated) increase of 6 dB. 9.23-7.83 =1.4mm (almost 1 dB...) 1.4/9.23mm is a 15% difference. 15% of 6 dB is (approximately) one dB.I don't use either WinISD or BassBox (Hornresp is my sim of choice), but the difference may be due to different impedance calculations, which would result in different power for a given voltage. At any rate, both produce smooth lines in charts, while real speaker's measurements wiggle around with (a lot) more than 1 dB variations, don't worry about small differences.
Re: 18rbx100 review
Neil,
Doubling excursion is a (simulated) increase of 6 dB. 9.23-7.83 =1.4mm (almost 1 dB...) 1.4/9.23mm is a 15% difference. 15% of 6 dB is (approximately) one dB.
I don't use either WinISD or BassBox (Hornresp is my sim of choice), but the difference may be due to different impedance calculations, which would result in different power for a given voltage. At any rate, both produce smooth lines in charts, while real speaker's measurements wiggle around with (a lot) more than 1 dB variations, don't worry about small differences.
