Ideally a front sound stage would have the exact same 3 speakers in a normal vertical orientation. Unfortunately, most people do not have the luxury of being able to place a center channel vertically. So if you do not have that option, what is the next best thing? Check out this article which helps explain the benefits and drawbacks of different horizontal center channels.
The SMSL SA300 is loaded with features and customization. Could this be the best amplifier under $150? The amplifier itself came with a few pamphlets and a user manual. Although the user manual looks small, it was quite thorough on the operation of the amplifier and remote control. The box also contained a USB cord for the DAC, a massive power supply that is capable of outputting 162 watts, a Bluetooth antenna and a remote control.