ButtKicker LFE Quick Start Guide
ButtKicker LFE Quick Start
How to Determine How Many Isolators You Will Need
Rubber isolators come in different weight capacities. Isolators are designed to be partially compressed in application and therefore are made with varying weight specification. This specification (RDA-55, RDB-120, RDB-220, RDB-375) indicates the amount of weight in lbs. that each isolator is designed to support (per isolator) for greatest efficiency.
Low End Roll Off
When choosing a power amplifier other than the ButtKicker Power Amplifier (BKA1000-4), please be aware of the low frequency response of the amplifier. Many manufacturers roll off, or cut frequencies below 20 Hz, usually because anything below 20 Hz has been considered unusable and damaging for speaker systems. Therefore, amplifier manufacturers often include additional circuitry to reduce or eliminate those damaging ?unusable? signals before they are amplitude and sent to the speaker.
This roll off of low frequencies (also called “Low Cutoff” or ?Hi Pass? Terse) is not best for the ButtKicker, although a shallow roll off can be tolerated (i.e. ?1.5 dB to ?3 dB at 10 Hz). A full cut at 20 Hz and below is not acceptable because it will severely limit some of the remarkable qualities of the ButtKicker. You should and frequency response listed among the amplifier manufacturer?s special cations.
Vertical vs. Horizontal Mounting
The ButtKicker was designed for optimal performance in the vertical orientation, but will function at any angle. Movement sensation is very different in the two axis, and only when special sensations are required should horizontal mounting be utilized. Horizontal orientation will not damage the ButtKicker.
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