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(More customer reviews)I purchased this subwoofer as part of a 'system' (which includes 2 KRK RP8 speakers) for my Korg M3 Keyboard Workstation. I was using my old computer speakers until I got this setup. This subwoofer is impressive, however, I must say my days of having 'golden ears' is long gone. Too many years of exposure to loud sounds (concerts, guitars, motorcycles) and age (51) means I don't have the kind of ears that are particularly discriminating. However, the new keyboard needed a sound system that covered lots of frequencies, the bottom end in particular. I looked into a lot of 'studio monitor' systems, and decided that KRK offered the best options in terms of price/performance. I also must admit that I didn't audition any speakers by listening. It was purely a documentation type review. That said, I'm thrilled with what I've got. The subwoofer has a volume control (which needs to be barely cracked off zero to create a balanced sound with the RP8s), and a variable crossover frequency, to allow a good mix with the other monitors (again, this is something someone with good hearing could take advantage of, which I don't; I left the crossover at 130Hz, the top end). KRK offers a tool which is said to create optimized settings for any room, but I didn't see a need for that. You WILL need cables, though, 4 total, two from the mixer/keyboard, and two more from the subwoofer to the other monitors. The nice thing about KRK is that they provide a number of different options for those connections, at least the input to the subwoofer (only XLR or RCA on the output side of the subwoofer). The input to the subwoofer can be XLR, 1/4" (like a regular guitar/amp cord) or even standard RCA (stereo type) cables, those these latter are unbalanced (which essentially means that a long run may end up being noisy, since there is no shielding in this kind of cable). I used old guitar cables at first, while I waited for my the XLR cables which I ordered from Amazon to get here. I'd be lying if I told you that I could tell any difference between the types of cables, sonically. They are equally secure in terms of solidity of connection. Still, if you want the best possible performance, get XLRs.
I'm very happy with this unit. I've read that it puts out 150 watts, and other places say 225, and I'm too lazy to look up the details in the product documentation. Suffice to say, the power is ridiculous, and would, I believe, easily fill a small concert venue. In my office, a 10'x12' room with cathedral ceiling and hard floor, it's way overkill. In fact, with the 8" drivers of the main monitors (the RP8s), I may have been able to get away without the subwoofer. However, because of the synthesizer portion of the keyboard, I definitely wanted to take advantage of the low end it can produce. The K10S definitely fills that part of the sonic spectrum for me. KRK used to make a 12" subwoofer, with even more wattage, which is what I wanted originally, but the K10S is more than I need as it is,
You have the option to remove the grill, to expose the really cool yellow rimmed speaker cone, but probably not a good idea; the grill provides protection (but the RP8 monitors come without grills; they are an extra cost option). One other thing, if, like me, you like to keep things 'clean', the subwoofer doens not come with a cover. I had one made, to keep the dust off.
Overall, highly recommended.
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KRK K10S Powered Subwoofer - 10 Inch, 225 WattsThe KRK K10S powered subwoofer is designed to extend the low frequency portion so your mix can be properly engineered. The K10S cabinet has radically curved surfaces for a great look and amazing performance. The front-firing bass port and KRK's trademark yellow glass-aramid composite woofer ensure accurate and powerful low-end punch. A sturdy grill which is removable protects the woofer and adds to the sleek appearance of the unit. A high power amplifier and active crossovers provide smooth and accurate reproduction. To accommodate any studio environment, the K10s has RCA, 1/4 inch (balanced/unbalanced) or XLR inputs for all your input options.
KRK K10S Powered Subwoofer Features:
225 Watt (peak) powered subwoofer for studio use
SPL rating of 110db music and 113db peak
Frequency response of 34 Hz- 50Hz to 130Hz variable
10 inch high excursion glass aramid composite woofer
Variable and sweepable low pass filter
80Hz high pass filter
Radically curved front baffle design for amazing performance
Front firing port provides low frequency extension without boundary coupling
Bypass control using standard footswitch
A New Standard in Low Frequency Monitoring For years, KRK subwoofers have been the choice for accurate low frequency monitoring in studios large and small. Now, the K10s provides a new standard for even better performance and accuracy, raising the bar once again. Whether you are mixing in a 2.1 or 5.1 surround environment or just looking to upgrade the low-frequency extension of your existing monitors, the K10s will provide the low frequency detail and accuracy that will help you to create a better mix. Let's Be Up Front Take a look at competitive subwoofer monitors and you'll find ports on the back of the cabinet. These rear-firing ports tend to create bass coupling with walls and corners over-amplifying low frequency information which in turn colors your mix. The superior design of the KRK10s includes front-firing ports which are just the right shape to reduce port turbulence. You'll appreciate the clean and accurate bass performance this approach delivers, even at high SPLs. Feel the Bass You need to feel the bass and our proprietary signature yellow woofer delivers tight, clear low end response. Our engineers and listening panel took the K10s speaker voicing to even more accurate levels. Featuring a sweepable 50 Hz – 130 Hz low pass filter, your K10s provides flexible control for any monitoring system. What you hear is what you are intended to hear, coloration is not part of the spec. This performance is brought to you by drivers that are custom-designed by our world-class studio monitor engineering team, for a clear, low-distortion performance. Take Control Professional engineers like the ability to hear how the sub is affecting the mix. Your KRK subwoofer is equipped with a bypass feature which allows you to defeat the sub and provide full range audio to your recording monitors. To use the bypass function, you will need to use a standard latching 1/4 mono footswitch.
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