Audiophilepure

Read Here

“Unboxing either subwoofer is a two-person job: The 12” weighs just under 100 pounds (98.5, to be exact), and the 15” weighs 128.5 pounds. Then there’s the added weight of the double-boxed shipping container. There are no instructions for unpacking the beast, but it’s best to open the top of the outer box, slowly flip the whole thing over, and lift the outer box off the inner one. Repeat the process to remove the sub from the inner enclosure; your back will thank you. Each sub has spiked rubber feet, so it’s best to use some sliding furniture movers (available at your local hardware store) to position it. Monoprice includes a pair of white gloves in case you want to provide your own white-glove service and keep oily fingerprints off the satinfinish, black ash vinyl.”

Read Here

“You can turn the low pass filter on or off depending on whether you’re using the sub with a Low Frequency Effect (LFE) channel. If the low pass filter is on then you can set the frequency at which the sub crosses over with the main speakers and you can adjust the slope at which the low pass filter rolls off (the default is 12dB). There’s also a Phase control, which allows you to shift the timing of the subwoofer output to align with the main speakers or additional subwoofers, and a Polarity control that allows you to reverse the electrical polarity from positive (default) to negative if necessary. The Room Gain Compensation control allows you to adjust for excessive sound wave density in smaller rooms by reducing the bass at either -6 or -12 dB per an octave, below a frequency that is adjustable from 25 to 40 Hz. You do this by turning the room gain compensation on or off and adjusting the high pass frequency and the adjustment slope (12dB is the default setting).”