Hi Esh,
I have spec for the Yamaha YST-MS50 supplied with the "Home Performance Package" as follows from information sheet:
Type......Advanced Active Servo Technology.
Output Power:
Satellite Speakers
20W+20W (1kHz,4 ohmn at THD=10%)
Subwoofer.. 40W(100 Hz,5 ohmn at THD=10%
Input sensitivity....200mV(1kHz,4 ohmnat 20W)
Input impedance........25 kohmn
Frequency response......32Hz to 20kHz
Speaker unit
Satellite Speakers
Tweeter.....19mm dome, magnetic shielding
Midrange....8cm cone, magnetic shielding
Subwoofer...16cm cone, ------ " --------

Power supply
To suite various Countries standard supply.
Dimensions(WxHxD)
Sat. speakers....97 x 159 x 178 mm
Sub woofr........350 x 210 x 321 mm
Weight
Sat. Speakers....0.7 kg each
Sub woofr........8.0 kg

in white or black
Accessories
3.5 mm stereo mini plug cable (1.8m)
RCA pin plug cable (1.8m)
8 pin plug cable (1.8m)
8 pieces of non skid pads

note; Specs subject to change without notice.

So all this could be wrong Ha Ha !!

Price I reckon around £75 (english)at a guess.

The gooseneck lamps are dimmable and give good illumination for music.

The stand is substantial so keyboard is very stable.
Well I hope all that is useful to you Esh. Sorry I can't send picture.

Best wishes ...Derek