I have a 4in. 4 ohm 5watt full range speaker and want to build a little cube enclosure for it. It will be a micro guitar practice amp (1/2 watt output or so out of a opamp) so I would like a simple (cheap) lowpass filter at 4 to 5k frequency range. I also would like the enclosure as small as I could make it with a port to help the bass response of the little driver.
Has anyone done something like this? It is a little different, since I am trying to maximize the tonal characteristics of a much smaller frequency range of the speaker 80 to 5k, throwing the rest away.
Thanks for any insight!
Has anyone done something like this? It is a little different, since I am trying to maximize the tonal characteristics of a much smaller frequency range of the speaker 80 to 5k, throwing the rest away.
Thanks for any insight!
Which bass ??? What about a 12 inch -150 W fullrange ???😀
Since very low power (chip) amps cannot drive complex loads ,which might not be the case , putting an inductor (coil) before the speaker cuts the treble. A 0.1-0.3 uH inductance would do the job (don't need 'fat' wire...) . Better if you limit bandwidth before the amp ,instead :simple RC work perfectly.
Take a look at this example (which is 2nd order ,i.e. 12 dB/octave attenuation)
This is the line level crossover
The cabinet 😎 can be also open-back ,or totally closed ...at these power levels air compression is quite negligible...
Since very low power (chip) amps cannot drive complex loads ,which might not be the case , putting an inductor (coil) before the speaker cuts the treble. A 0.1-0.3 uH inductance would do the job (don't need 'fat' wire...) . Better if you limit bandwidth before the amp ,instead :simple RC work perfectly.
Take a look at this example (which is 2nd order ,i.e. 12 dB/octave attenuation)
This is the line level crossover
The cabinet 😎 can be also open-back ,or totally closed ...at these power levels air compression is quite negligible...
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