"Good, Economical keyboard amp."
The sound if pretty good, overall. I think it should have a little more loudness than it does for 180 watts but the sound that it actually has is fairly clear. I've listened to this amp side-by-side to Pevey and Roland 180 watt amps and this one is much cleaner at louder volumes - although it's maximum loudness is a little less than the other two.
There are 4 stereo input channels, an additional line-in for ipods/playback/recorders, a stereo link for connecting to another K1800FX and a 7 band EQ. It's a good, small performance PA and a good keyboard amp, too. All in all, this amp is very a good value. One piece of market-hype is that it claims to have 100 effects - it really only has about 6 - with different levels of the basic 6 being considered as different effects. It also considers combinations of the basic 6 effects as part of the supposed 100. It could really use a Rotor/"Leslie" effect, since it IS advertized to be a keyboard amp.
Ease of Use:
This is a basic stubby, black, rug covered, keyboard amp. It looks like (and mostly behaves like) all the other black, stubby, rug covered, keyboard amps. It's as hard or as easy as all the others are to use.
This is a solid amp. I've used it for almost 2 years and haven't had any problems. The electronics are dependable. The box itself is well made (the corners have "bump guards"). The overall quality is good for the price. The only problem is that at high volumes, the amp hisses when there's nothing going on and things should be quiet. While playing loud, during a performance, this is NOT an issue (you can't hear the hiss)
I haven't had any problems, so I haven't had to rely on any support. For what it's worth, the user manuals are on-line.
This amp is easily as good as the Roland or Pevey 180 watt amps - AT HALF THE PRICE. The only minor problem is that is hisses at high volumes when eveything else is quiet. This is a very minor problem...
The Wow Factor:
It looks like every other keyboard amp...It sounds as good (or maybe better)..and it costs half the price. If you really want to spend $600 US on a Roland, buy two of these, instead, for the same price and have a 360 watt, TRUE stereo system.
I like this amp a lot. I expect to use it for several years. At low volumes it's great for practice or small venues. It could be a little bit louder at the top end but overall it stands head to head with the Roland and Pevey - at half the price of either of those...