The Quantum 675 is the smaller of two floor-standing loudspeakers in the Quantum 670 series, a further development of Magnats Quantum 650 series, which was highly praised in many test reviews..
The Quantum 675 is the smaller of two floor-standing loudspeakers in the Quantum 670 series, a further development of Magnats Quantum 650 series, which was highly praised in many test reviews.