Bass boost levels can range from +6dB to +18dB, depending on the amplifier. In most cases, it is a variable control - you simply dial in the amount of boost you'd like to hear. Many amplifiers have a bass boost function. Keep in mind that this adjustment does not affect the power output of the amp - you're simply setting the amount of input signal needed for optimum sound quality from your system.Ĭar stereo competitors sometimes employ a technique called "gain overlap" to wring some more dBs out of their rigs while keeping distortion out of the audible range. If you hear distortion, decrease the gain settings slightly.īy following this procedure, you'll optimize your amp's performance at the receiver's maximum volume level, so you can crank your system almost all the way up without amplifying any distortion, or damaging your speakers. Turn the input level controls up until the system is as loud as you can stand it or until you begin hearing distortion - whichever comes first. Now begin adjusting your amp's input gain.(This gives you maximum signal-to-noise ratio, so you'll enjoy clean sound and your system will be less prone to engine noise problems). At this point, you have as much signal as possible passing from your receiver into your amp. When you start hearing distortion, lower your receiver's volume control until the distortion disappears.(Audiophiles and sound competitors may want to use a dedicated test disc. You'll begin to hear music at faint levels. Put in a tape or CD or tune in a radio station.Turn your amplifier's input level controls all the way down.Proper gain setting helps reduce noise and distortion and allows for the widest possible dynamic range. Q: How do I fine-tune my amplifier's gain and bass boost settings?Ī: Setting the "gain" or input sensitivity control is an important adjustment common to all amplifier installations. Your subsonic should be set according to what your box is tuned for and the woofer rating. I'm not an audio guru, but I set mine for 60, and ground both amps with the same gauge you used for power.
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