but i think for now if i tune it by ear and get it to where it seems like its not going any louder and set it would that be fine?

nicks and dents on the blade from cutting chicken/fence wire for hours) and now they dont cut thin/stranded wire very well anymore. It´s not being used as "two Stereo amps driving 4 speakers" but as a single stereo amp driving two speakers. The remote gain knob controls the gain FROM the point that it is set on the amp rather then TO the point it is set on the amp (which sndsgood explains) Say for example the amp has a gain range of 0-10 and it is safe at 5, then the remote knob will only turn it up or down from that 5 point, not 0. I was just curious if manufacturers often used some sort of standard cap or pot tuned to a specific range of frequencies, or, if it was all over the place and there was no standard.

A better alternative is a shelf filter that expands high enough to affect both, but "loudness" can work fine for low volume listening.

Before permanently mounting the knob, test its placement in different positions while sitting in the driver's seat to find the most convenient spot. An external bass controller (EBC) will allow you to adjust the bass level without having to pull over and adjust the gain setting on the amplifier. i like my EBC or external bass control so i can turn it down during rock songs and up during rap or hip hop stuff.

my responce was based on my first reply in which i said IF the remote gain does not go louder then what was set at the amp. Bass Controller - External bass controls (EBC), or remote bass controls (RBC), are a convenient and easy to install accessory that allows you to tune the bass in your music song by song. One MS-WBC will 'act' on multiple amps which can be helpful when you've got subs and midbass (up to 160Hz) on multiple amps. You can adjust the gain up or down while measuring the voltage until the multimeter measures that voltage and your amplifier would be properly set and the distortion should be eliminated. Makes me wonder what's different about the technology that's causing it or at least bringing it to light.

Although the EBC is essentially a remotely located gain control, it is still important that you still set the internal gains on the amplifier first.Come join the discussion about capacitors, amplifiers, subwoofers, marine and automotive audio, troubleshooting, and more! It also made it so the bass knob has zero effect on volume level until its 85% turned up and then it increases in volume very quickly until its at max. At Sonic Electronix, we offer a wide selection of premium-quality amp remote bass control knobs that allow you to fine-tune your bass levels with ease. Finance is provided by PayPal Credit (a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH).

Even in those cases you can still hear a very slight hum and you can feel it vibrating through the subs. and I dont want a million splitters and stuff I need to convert the headphone plug output from my computer to quad RCA since the amplifier takes two lefts and two right channels in RCA inputs and I have the amplifier in bridged mode for two subwoofers. Sonic Electronix offers a selection of remote bass control knobs compatible with different amplifier models, providing a seamless integration with your car audio system. The only reason it sound louder when you turn the gain too high is because there’s a high pitch frequency along with the bass note making it sound louder but it not putting out anymore rms, it’s just putting out distortion. You can use an oscilloscope to check the output wave if you have one available or, a more common way is to use a multimeter and measure the output voltage of the amplifier at the speaker terminal and then use this calculation to determine if your gain is set correctly.

If I remove the knob that hum and vibration is eliminated entirely so I don't think this is related to the gain or LPF because the noise is still there its just minimized by reducing the signal to the amp. This keeps you (or someone else) from getting a little too happy with the knob and driving your amplifier beyond the point set on the amp.