Quick Answer: What Is Subsonic Filter For?

How do you use a subsonic filter?

Turn your Subsonic Filter down to 10Hz then slowly turn up the filter frequency until you hear it take effect on your sub bass.

The Subsonic is now correctly set.


Turn the Low Pass Filter to the setting that allows for the most accurate sub bass sound for your system..

What Hz is best for bass?

20-120 HzA 20-120 Hz rating is best for bass in most subwoofers. The lower the Hz, the more is the bass you can get. Some of the best subwoofers in the market have this Hz range. If you are buying a subwoofer that has a fixed Hz rating, you should ensure it is lower than 80 Hz if the bass is important to you.

What does phase shift mean on an amp?

Phase shift in an amplifier is the amount (if any) by which the output signal is delayed or advanced in phase with respect to the input signal expressed in degrees. If a phase shift of 90 degrees occurs then the peak of the output wave occurs one quarter of a cycle after the peak of input wave.

Can a subwoofer port be too big?

Remember, there is such a thing as too big. As the size of the enclosure increases, the mechanical limits of the woofer will be easier to reach. … If the port becomes too small, it may result in port noise, or allow the woofer to simply unload.

Do I need a subsonic filter?

Subsonic filters are good for keeping the wattage of the amp powering the frequencies you want powered, and not wasting power trying to reproduce very low frequencies. I cannot say that you NEED a filter, but it does somewhat depend on your music tastes.

What should LPF be set to?

Recommended Starting Points:Tweeters – High-Pass Filter = 5,000 Hz (12 db or 24 db Slope)Midrange – Band-Pass Filter = 80 Hz HPF & 5,000 Hz LPF (12 db or 24 db Slope)Subwoofer(s) – Low-Pass Filter = 80 Hz (12 db or 24 db Slope)

What phase should I set my subwoofer?

Typically, though, phase is left at 0° for most applications. While seated in your listening sweet spot, play music with bass content that is familiar to you and then have someone switch the 0/180 phase switch on the sub to 180-degrees. This will let you determine if the bass sounds louder in your seating position.

How can I make my bass more powerful?

Have the main frequency (the frequency that defines your sound or the one with most ‘energy’) of your sub-bass hit between 40-60 Hz. Make your kick hit about an octave higher, around 120 Hz. That way it won’t interfere with your bass too much. Plus your track won’t sound ‘boomy’ or ‘muddy’ in the final mix.

What is PFM subsonic filter?

A subsonic filter is basically a High Pass Filter for very low frequencies, generally 45hz or lower. That is, whatever you set it at; only frequencies above that setting go through. Anything below that setting is attenuated (made quieter). As only frequencies higher than your setting pass its a high pass filter.

What should I set my LPF and HPF to?

You usually set the HPF with a steep slope say 24db/octave because you are trying to protect the sub from damage and a 12-18db/octave on the LPF because you want it to kinda “blend” in with your mids. The steeper the slope (db/octave) the less your sub will creep into the neighboring frequencies.

Should I use LPF on my amp?

SUBSONIC FILTER – is basically a HPF (high pass frequency) filter for your subwoofers. As we discussed earlier in this article, subwoofer amps typically use LPF (low pass frequency) filters to block high frequencies that should be playing through your speakers. … Doing so could damage your subwoofers.

Is 40 Hz low enough?

Many say that they can live without subs, but most full range speakers typically go down to 40hz.

Is higher Hz better sound?

Frequency response is the range of bass, mids and treble. … Some headphones offer wider ranges (for example, 5 to 33,000 Hz), but better frequency response does not always mean better sound quality. Below 20 Hz bass frequencies can be felt more so than heard, treble frequencies over 20,000 Hz are not always audible.

What does xover mean on AMP?

crossover frequencyAn abbreviation for crossover frequency, which refers to the specific frequency at which a crossover will divide the audio signal into separate frequency ranges.

What is a good crossover frequency?

What is the recommended crossover frequency for a subwoofer? For THX Certified and non THX Certified home theater systems, 80 Hz is the recommended setting. However, you can set the crossover (LPF) between 80 Hz – 120 Hz based on which setting sounds best for your system.

Does polyfill help subwoofer?

The material is easy to apply to the inside of your subwoofer enclosure and allows you to add the perfect amount of fill so your box appears bigger to the subs which will then produce better audio quality. … In these cases you can easily add some Polyfill to the box to increase the effectiveness of your subwoofer.

Should you use bass boost on AMP?

Applying just a little bass boost will bring up the kick a lot. Be careful with the bass boost, if you choose to use it — this is where distortion is often introduced into a system. If you hear distortion, lower the sub amp’s gain until it goes away. Use the bass boost to feel the beat in the air your sub moves.

What is the difference between high pass filter and low pass filter?

A high-pass filter (HPF) attenuates content below a cutoff frequency, allowing higher frequencies to pass through the filter. A low-pass filter (LPF) attenuates content above a cutoff frequency, allowing lower frequencies to pass through the filter.