Owner`s manual

MAINTENANCE

The surface is best cleaned with a mild household cleaner. On no account use furniture polish or similar

products.

SPECIFICATIONS

Subject to technical change.

Quantum 657 Quantum 655

Configuration: 3-way bass reflex 2 1/2-way bass reflex

Power-handling capacity: 200 / 350 W 180 / 300 W

Impedance: 4 – 8 ohms 4 – 8 ohms

Frequency response: 20 – 50 000 Hz 22 – 50 000 Hz

Recommended amplifier output: > 30 W > 30 W

Efficiency (1W/1m): 93 dB 92 dB

Dimensions (WxHxD): 202 x 1080 x 316 mm 202 x 995 x 316 mm

Accessory: Metal spikes Metal spikes

Quantum 653 Quantum Center 63

Configuration: 2-way bass reflex 2-way bass reflex

Power-handling capacity: 100 / 180 W 100 / 180 W

Impedance: 4 – 8 ohms 4 – 8 ohms

Frequency response: 30 – 50 000 Hz 32 – 50 000 Hz

Recommended amplifier output: > 20 W > 20 W

Efficiency (1W/1m): 91 dB 91 dB

Dimensions (WxHxD): 202 x 350 x 280 mm 490 x 175 x 280 mm