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Old 3rd June 2008, 06:48 PM   #11
col is offline col  Australia
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If you use the JBL GTO937 6x9" in a small enclosure make sure you cut out all the low frequencies, otherwise they distort badly. I use a 200uF 100V Non-Polarised Electrolytic axial Capacitor on the positive terminal. This cuts anything under around 260hz. If you want bass you will need to compliment the system with a sub.
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Old 3rd June 2008, 10:31 PM   #12
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Personally I'd find a cutoff of 260Hz a bit restrictive, as calculating in the even-tempered scale, and taking International Middle A 440Hz, Middle C is 261.626 Hz.

Low C on the guitar (written as Middle C) is ~130Hz and Low E about 82Hz. This is not that hard to achieve in a portable system.

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Old 4th June 2008, 07:12 AM   #13
col is offline col  Australia
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yeah, the JBL GTO937 is designed to be almost open baffle, to sit on a parcel shelf. If you put it in a small enclosure it doesn't like it much. I run mine as mid-highs with a pair of JBL SB2 subs continuing from 260hz down. I used to use the SureElectronics 4x100w module to power it all but have now changed to a 4 channel 41hz amp9-basic
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