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Beware the specification for this amplifier, it is a BTL device.
on 16 January 2015
This device works well. But if you are buying it as a stereo amplifier, think again. This amp. is designed and clearly labelled as Hi-fi stereo BTL out. This means it is wired as BTL(Bridge Tied Load). A pair of stereo amplifiers are connected to a single or pair of speakers in antiphase. This eliminates the need for DC output blocking capacitors and provides double the output voltage swing across each speaker. The combined output of this unit is MONAURAL even though it has two amplifiers inside the housing. The stereo input signals are immediately combined as a mono signal before being applied to the amplifiers in anti-phase. The speaker outputs are likewise paralleled as BTL mode.
BTL amplifiers are normally used to drive sub-woofer bass speakers. If you need real stereo then buy two of these boxes or go for a proper stereo amplifier. I suspect the people selling this item and many of the people who bought it, do not understand what BTL means.