Syzygy SLF 850 wireless sub with room correction built in!

Superb sub with wireless capability and room correction built in. Just pair it with the transmitter that connects to your amp, and plug it in to power.


Use the smart phone app to control volume and to set the response curve from your listening chair. It could hardly be easier — I had this up and running in under 10 minutes — and the difference in flattening out the response was immediately apparent to me. Feet included for either bottom- or forward-firing orientation.


Great reviews of the 850 — http://www.tonepublications.com/review/syzygy-slf-850-subwoofer/ — and its larger sibling, the 870: https://www.theabsolutesound.com/articles/syzygy-acoustics-slf870-subwoofer/


This is a sub that punches WAY above its weight. I'm not sure there's ever been a used one available, for half price no less. I got this at a discount and I don't have time or inclination to nickel-and-dime a buyer. I'm moving rooms and going with a larger stereo pair of subs, or I'd happily keep this one.


There is a crescent blemish of about 2 inches on the top of the sub, but I couldn't get it to photograph despite the fact that I'm a reasonably serious amateur photographer with studio lights. I doubt you'd even notice if I didn't say something, but I want to be as candid as possible.


PayPal fees included; shipping charged at actual cost from 20814.


One final note, a pet peeve of mine: Please don't ask me for my "best price." I have made an offer (the listing price), and I will consider any reasonable counter-offer against my first offer, but I won't bid against myself. If you're interested and you have a number in mind, go ahead and make a take-it-or-leave-it offer. If you're trolling for desperate sellers... I'm not one, so let's not waste each other's time, okay? Thanks.


Check my feedback to know you're dealing with an honest guy!