Great upgrade for inexpensive active speakers or those with limited bass extension. Rare built by Harbeth pro sub marketed by HHB . Features a discrete 100 watt amplifier,a 12" woofer using slot loading and active crossover.It has full phase, input boost level and input sensitivity controls. It weighs 47.5 lbs. and measures 16.3 "x16.3"x 18.3".The sub's built-in active crossover can be used in one of 3 separate ways. (1) the first splits the signal coming from a preamp or processor on XLR cables ( 2-5 channels ) sending the bass under 120 hertz to the sub and the remaining signal to the other amp/speakers . This greatly reduces the load on the main amps/speakers while offering great bass. (2) the sub can be used in the traditional LFE home theater setup being fed the "subwoofer output" from a receiver (XLR or RCA input in this case) or (3) as a combo of both. With the exception of the LFE mode connections are balanced XLR jacks. Cosmetically- scuffs and a couple of paint chips - good news is it is painted wood, not veneer and is easily touched up- condition factored into price and best left to the new owner IMHO once shipped. Original retail was $1500 . The linked manual gives a full description of usage options . At my asking price, the electronics and speaker alone are worth it and could be used for other projects. Shipping at cost.Can be shipped via Canada Post to US or Canada or other carriers or picked up in Victoria BC.I have lots of x-border shipping experience Asking $300 USD + shipping
http://www.hhb.co.uk/hhb/global/brochures/circleug.pdf
http://www.hhb.co.uk/hhb/global/brochures/circleug.pdf
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