Some of that is badly translated. ; ) No speaker in the world goes up to
100 kHz, and impedence is rated in Ohms. At any rate, if your centre speaker goes down to 58 Hz, then I would recommend against the 60, and start with 80. You can move up from there, but use whatever sounds best to your ears.
I've read that the closer the front speaker is to the wall, the more exaggerated the bass will sound from those fronts. If you like the sound of it, great -- leave it. The back of my fronts are about ten inches from the wall, and they sound fine to me. The experts at Polk Audio recommend that the fronts be placed at least two feet from any wall, large piece of furniture, and especially corners. If you have a small- to mid-sized room to play with, like I have, this can be near impossible to do. Don't let them sit too close to your TV (keep the tweeters 6 to 8 feet apart), and have them sit a few inches in front of the front of your TV. But like I always say, play around with placement and use whatever sounds best to you.
SURROUND Type 2 ways * bus reflex type Rated impedance 6 Omega Largest input 80 W Rated sensitivity level 83 dB/W/m Rated frequency range 45 Hz - 100 kHz Crossover frequency 7 kHz Cabinet content volume 7.8 liter Use speaker Woofer 8cm A-OMF diaphragm ×2 Tweeter - 2cm neo balance dome ×1 Size 182 W×952 H×195 Dmm (the saran net * terminal projection section including) Mass 8.2 kg (1 unit) Terminal The gold-plating brass it starts shaving, screw system
SUB Type Amplifier built-in bus reflex type Input sensitivity 2v (speaker input), 68mV (line input) Input impedance 4.7k Omega (speaker input),54k Omega (line input) Utility installed capacity 75w (5 Omega * JEITA) Playback frequency range 30Hz - 200Hz (at the time of FILTER), 30Hz -
1kHz (at the time of DIRECT) High cut-off filter Variable (50 - 200Hz) Cut-off filter change ON/OFF switch 0 (FILTER/DIRECT) Cabinet content volume 16 liter Maximum external size 236w×371hx362dmm Mass 13.0kg Use speaker 20cm cone type External input terminal RCA pin input, one-touch type speaker input terminal External output terminal RCA pin pre- output, one-touch type speaker output terminal Power source 100V (50/60Hz) Electric power consumption 50W
FRONT Type 2 ways * bus reflex type Rated impedance 6 Omega Largest input 120W Rated sensitivity level 85.5dB/W/m Rated frequency range 35hz - 40kHz Crossover frequency 3kHz Cabinet content volume 30.3 liter Woofer 13cmA-OMF cone ×2 Tweeter - 2.5cm software dome External size 185w×930H×274dmm (the saran net * terminal projection section including) Mass 14.5kg
CENTER Type 2 ways * bus reflex type Rated impedance 6 Omega Largest input 120W Rated sensitivity level 86.5dB/W/m Rated frequency range 58hz - 40kHz Crossover frequency 3kHz Cabinet content volume 6.1 liter Use speaker Woofer 13cmA-OMF cone ×2 Tweeter - 2.5cm software dome External size 500W×146h×168dmm (the saran net * terminal projection section including) Mass 6.3 K g