Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Hello. Do I need a sepatate sub amp to power this speaker?
Document: I really wanted to like this subwoofer. Its appearance is terrific, and it is very well built. Unfortunately, when wired into the left and right speaker channels (without a dedicated subwoofer connection on the amp, as described in the manual) it introduces a really horrible distortion into the right and left speakers. This is probably because of the way it piggybacks onto the existing L/R speaker connections, but really makes the product worthless.
I spent a lot of money to have a &#34;do-all&#34; system. My bluetooth speaker works sounds better.I would not consider spending more than $50 for this unit.
I had a hard time rating between 1-2 stars.I love the idea of this unit. However, Polk should really consider how to place/market it. It costs the same as a powered unit. IT is not (and I knew that going in).The materials act like you can give this its own channel - which was my preference. Good luck. The ohms load is so low -  it trips my amp.
I ordered the sub overnight and it showed up on time. The wiring was not what I expected. If I remember correctly it wires up parallel. There is no crossover. But it works great and really improved the sound on the patio. I have it paired with 2 Infinity outdoor speakers. Infinity is not known for their low end and Polk is. So together they sound pretty good. I looks inconspicuous so it is not as likely to walk off and it makes a dandy plant stand.
the item was received in a timely manner and in perfect condition. I'm very happy with the sub, in fact I'm sitting in my backyard listening to it right now as i fill out this review. fills out the sound great
Tried to hook to my receiver and didn't work.. Just buy a powered speaker... This is junk! Wouldn't recommend to anyone!
Works great with my outdoor set up. Paired with Yamaha 150W outdoor speakers, I now have another room outside. Easy set-up, great sound. Definitely recommend!
Unless you want a $300 plant stand.
Connected and adjusted amplifier output with dedicated L&R; channels through a Russound SDB 6.1 to match with 4Bic America Adatto Dv52Si Adatto Indoor/Outdoor Speakers (Black)satellites of higher efficiency. Easy to hook-up and looks great underneath one of many terracotta patio planters. Sounds great at even low listening levels--not too "punchy."
Answer: I did get $100 one due to the lack of power my reciver outputed.