I certainly don't know and haven't tried it. However the output is only 200 mw and I doubt that the speaker is any better than the HL one. I've just received this device with the aim of installing it in my HL Tiger (probably with just 1 speaker) at some point. Haven't got that far but it certainly works well with my MP3 player. Sounds remarkably good for its size amazingly enough.

Apart from costing less than $2, I think its output is 2 watts (10 times more than the RS one) so it's potentially at least twice as loud. More so, in fact because it's a stereo amp. Also the speakers have what appear to be properly designed enclosures. That doesn't seem to be the case for the RS one. It works off 4 AAAs, 6 volts externally or 5 volts via a supplied USB connector.

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