KlipschSub-12HG Synergy Series 12-Inch 300-Watt Subwoofer with High Gloss Trim (Black)

I purchased my Klipsch Synergy 12” Sub way back in 2014 and it still performs as well as the day it arrived. Klipsch’s built-in BASH amplifier (good for 650w) is so incredibly powerful that I’ve rarely turned the sub volume past HALF. When properly placed into a corner, this sub can easily shakes the cushions on my couch from 12 feet away. It’s also has speaker level inputs if you’re in a pinch, but I’ve never used them, as all you require is left and right RCA cable for input. The crossover is simple, it’s just another knob with xover frequencies labeled on a dial.I’ll usually tune music via software EQ to make the bass more punchy, but it sounds pretty good naturally and doesn’t require too much tweaking. My only modest critique is that some bass can be a bit muddled when played loud, but this is also due to the compressed music we all listen too. I have noticed better performance when listening to lossless files via Plex. During setup I used all kinds of bass tones (20, 30, 40, 60 and 80Hz test tones) and the sub played them just fine.For movies, it’s GREAT! The sub really comes alive during well-produced, multi-channel (Dolby, DTS, etc) audio. It provides for some deep-in-your-bones bass. Explosions, gun fire, aircraft. The bass plays all with authority, I can’t see how anyone could be disappointed considering the low cost of this sub. I’d suggest some felt feet for the sub as it reduces vibration in the floor and costs only pennies to significantly improve your audio.I’ve seen a lot of posts asking about Polk Audio subs in comparison to the Klipsch? I’ve owned a few PA subs and I feel reasonably certain that the Klipsch takes the cake in almost every metric. PA lose authority at really low frequencies (20-60Hz), but the Klipsch will thump a 20Hz tone all day without any flutter or clipping.Lastly, I wasn’t paid a dime to leave this review. I’m simply enamored with this sub after 5 long years of ownership.

I'll start by saying I'm not an average joe when it comes to sound quality, I'm somewhat of an audiophile on a lower budget. That being said I'm super impressed with the sound this thing pushes out. Just for your guys info I have heard super expensive high end subwoofer like the HSU VTF-3 MK5 HP which is a monstrous 15'' inch subwoofer with 600 continuous watts with 2000 watts short term ported to go down to 17hz (which is inaudible but definitely felt!). That subwoofer of course sounds amazing super clean and tight but also destroys the low bass notes in movies. An example of this in action is the opening scene of The Edge of Tommorow that is a great subwoofer test. But! To stay on topic the Klipsch performs great FOR THE PRICE that is the key here.Sound: This thing pounds! Its too much for my little room at the moment, but that's ok you can always turn it down. I have the gain set less than halfway. I will say that it can be a little boomy but that could be my position in the room or because my room is too small. But this subwoofer can produce nice clean low bass the kind of bass that makes the walls shake and your seat vibrate. It is not the best for music as it does not seem to be as clean and tight. But I expected this due to the ported design. This sub is made for the most output as possible for the money. I am using this for a home theater and it is wonderful.Look: It is kind of an eye sore with the legs the way they are, but again who cares I want bass its not a fashion statement.Setup: No problems... pretty much common sense. Auto on feature works as its supposed to. Gain set at less than halfway. Crossover set at highest point as I use my receiver to control X-over point.Overall outstanding subwoofer, I will soon be moving and I will have my own dedicated theater room which is at least twice the size of my room now. Later down the road I plan on purchasing another one(even though I probably wont need it lol) of these to add to my system to close out any potential dead spots and add to the mayhem.

Awsome sub! Lots of power and really enhances my Heresey II's ! Definately would recommend for the pricepoint!

I've been using this subwoofer for multiple applications in an apartment, and believe it's an astounding value at its current price or little bit less (like I got) should you know how to utilize it. This is best used for small to medium rooms, and for a medium large room you may benefit more from multiples. After doing some room calibration with a PEQ eliminating the room modes the sub has proven able to be both authoritative and musical without a hint of struggle in my smaller apartment. There is no port "boom" or flabby sound from this - anyone that claims such is likely mistaking room acoustic issues for the sub as they are exciting modes they didn't have before. In some ways this is a testament to the lower output from the sub being capable, but I digress.However, it's not a perfect sub. It will not reach down to 20hz, it mostly rolls off at around 30hz. For true 20hz performance there are better subs out there - given at twice the cost this is currently going for. Equally, most cheaper subs tend to roll-off around 40hz so this is pretty solid competition in price to performance at its current going cost. There might be some cheaper or similarly priced/better solutions if you're willing to DIY - but many here likely won't have the patience or time (at the time I myself did not).Effectively the only downfalls of this is the limited output for medium large and greater room and the size - unfortunately good ported subs require the enclosure to be large, so this isn't the fault of the sub or a bad thing, but rather expected of competent design.So where does that leave us? Well, it's definitely not a five star product as the value isn't off the charts but is rather reasonable at it's current level (and would be unreasonable at MSRP). On the other hand, I can't think of a budget commercial sub that is quite comparable making it probably one of the top budget subs to have. As such I think it deserves a solid 4/5.