Ok, you have already spend multiple $$ on your HiFi system, but some how it does not sound anything like in the demo show room experience. Well the problem may be due to your hifi room acoustic that is create too much echo or just simple speaker placement position can have a great effect on sound.
You can download a free copy of REW Room EQ - a room acoustic measurement software from here
http://www.roomeqwizard.com/then go head and purchase a UMIK-1 USB Measurement calibrated microphone from here
https://www.minidsp.com/products/acoustic-measurement/umik-1 ,and with a laptop PC then you are all set for your hifi room acoustic measurement.
The REW software allow you to measure the room frequency response, impulse response, RT60, waterfall and spectrogram, this will allow you to know whether you need to add more acoustic absorption or diffusion material in your hifi room to get a balance sound.
A local singapore company that sell room acoustic treatment bass trap and diffuser and are highly recommend here
http://auralaid.com/