TECHNICS (SB-CS7) PAIR OF SPEAKERS .

I have a pair of speakers SGTS8GBCS7 owned from new in black wooden finish in immaculate condition. One is perfect, the other is not as loud as the other one. Both work. - Speakers are approx 60cm (h) x 30cm(d) 45cm (w) - 160W input, 80W music.