![]() Just want to see what y'all have to say about the settings is all. then middle setting which is pretty much the same then treble which is khrz settings but pretty much the same. And in the bass setting I have it set to 0+, 85hrz, and 1.5 for the last of the 3 settings under Pro EQ first bass setting is -6 to +6, 2nd is low 55hrz, mid 85hrz, n high 120hrz. so at 10hz, any sound will be limited by 6db. Five variable input impedance settings are available to adjust to any MC cartridge while the 47k ohm input impedance setting is fixed and suited for MM and high output MC cartridges. A subsonic frequency is very low, so low the human ear can barely detect it, but your body can feel it. As only frequencies higher than your setting pass its a high pass filter. Anything below that setting is attenuated (made quieter). an octave is either 12 a given frequency, or 2x the same frequency. That is, whatever you set it at only frequencies above that setting go through. I have it set to 85hrz now because in the LPF on my HU i have set to 85hrz in both LPF setting which offers 55hrz, 85hrz, n 120hrz. there are different levels of filtration, a 'first order' filter will cut frequencies at a slope of 6db per octave. I normally set it at 1/3 octave below tuning frequency. Some vids say to turn it all the way up some said it didn't matter so said match it to our radio so idk wth to do with that one. An infrasonic filter is generally only used with a ported enclosure, to help prevent the sub from unloading below tuning frequency. Just how much above 25 Hz it starts rolling off depends on the slope of the filter. So if you set your subsonic filter to 25 hz, for example, your output actually starts rolling off above 25 hz, and at 25 hz its 3 db down. But I didn't understand anything about the LPF. The frequency a filter is set at is the frequency at which that signal is 3 db down, regardless of slope. And as for the Subsonic filter I guess it suppose to set it to where you don't want to go lower than so I have mine set at 25hrz I think it's around there anyway. For example, if the Subsonic Filter is set to 30 Hz, only frequencies above 30 Hz will be passed. ![]() Or find a test tone disc that has a variety of low frequency tracks. The Subsonic Filter will block frequencies below its set level. 5Hz below what the box is tuned for ½ an octave below what the box is tuned for We recommend simply turning your system up to a maximum volume and playing a song that you have that hits the lowest frequency. ![]() I pretty much understand that u put volume to 80% and adjust gain upward until it's pitch changes and then back it off a lil bit. There are many opinions about where to set a subsonic filter. I was looking at some treads about this and watch some vids on how to set the gain, LPF, and Subsonic filter. What I experience however, with the subsonic filter setting is a greater sense of power from my amp, more PRAT, an enhanced mid-range, greater bass articulation, greater decay, greater 3 dimensionality, lower noise floor, and a more liquid, musical presentation with a noticeable increase of detail and clarity. Set the amplifier's subsonic filter to its lowest setting Start playing a test tone whose frequency is equal to the desired low pass filter setting, say 80hz.
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