![]() #Subsonic filter driver#It's a win-win situation for the amp, the driver and my sanity. This will also keep me from wasting precious amp power trying to reproduce anything below (practically useless anyways), which translates into less energy consumption and less heat = amp longevity. In either case, it would seem that filtering this before the signal hits the amp stage is going to not only be better, but easier on the wallet. #Subsonic filter pro#I'm farther ahead whether I build my own pre-amp filter or use something like a Behringer Ultragain Pro MIC2200 ($100). After seeing the values needed for a 35Hz filter and trying to find inductors and caps that are even close to what I'd need, the cost would be non-beneficial. But I was thinking it would be cheaper to design a post-amp filter as opposed to pre-amp. Passive crossovers aren't exactly known to be efficient. I do agree that it's best to put the filter on the pre side of things as opposed to post-amp. While xlim is really more of the concern, it's better safe than sorry. Modeling for my cab shows this driver will reach xmax at 31.59Hz with a 400 watt signal. 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. It is quite possible to send subharmonics through the cab with an ill placed slap or pop. (BTW - The lowest note on a standard electric bass guitar is about 40Hz.Click to expand.Well for 1, synth may very well find it's way to this cab. Subwoofers for dance clubs and live music are usually tuned to go down-to about 40Hz and that allows the maximum bass energy & bass loudness (for a given subwoofer size and amplifier power) and it's low-enough for bass you can feel in your body. #Subsonic filter plus#Subwoofers tend to be inefficient if they are "tuned" to very-low frequencies, plus our ears are less sensitive to very-low frequencies so you can start needing tons of power. I don't know how sensitive/efficient bass shakers are. Of course you're not loosing total power and everything will probably be OK if you don't boost the bass. Subsonic filters should be set close to the tuning frequency in order to limit the frequencies that are below the tuning of the enclosure. In that case you can simply use a higher-value capacitor (more uF). #Subsonic filter series#Or if you are "lucky" it might just be one "DC blocking" capacitor in series with the input. The GKFX-1 will improve ghost note immunity and enhance tracking with Piezo pickups. The word infrasonic refers to sound waves that are at or below the lower threshold of human hearing. The term subsonic refers specifically to aircraft or projectiles traveling at less than the speed of sound, or 767.27 miles per hour. Best subwoofer in the world tuned 20hz with 2500 Crown amp watts. Dont be jealous that you cant find my subwoofer anywhere anymore. You'd probably have to change a couple of capacitors and/or a couple of resistors. First and foremost, the proper term for this feature is an infrasonic filter. And its super loud at 20hz with no subsonic filter Youre wrong its tuned fine at 20hz trust me come have a listen I put it in a 4ft3 box sealed and produces much deeper and louder sound with my ported box. There's more than one way to make a filter. ![]() Is there a schematic? Or, can you figure-out the circuit and draw the schematic? Without knowing the circuit this will be nearly impossible. (BTW - The lowest note on a standard electric bass guitar is about 40Hz.) Subwoofers for home theater often go lower but they don't have to fill a big space with big-sound. Where you really "get into trouble" is when you start boosting the lowest frequencies with EQ and demanding even-more than the program material naturally calls-for. If it's putting out 300W at 40Hz, it can't put-out 300W at 20Hz too, but it could put-out 150W at 40Hz and 150W at 20Hz at the same time. It's also just because it's (usually) reproducing other sounds at the same time. Click to expand.Of course you're not loosing total power and everything will probably be OK if you don't boost the bass.īut you're right if it's reproducing subsonic bass, those watts are "lost" from any other frequencies, and it's not just because those frequencies are lower. ![]()
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