I'm interested in a pair of KEF C80 speakers in my local used market. They look to be in "very good" condition. The asking price is $200. The specs are:
System Type: Three-way, floor standing
Enclosure type: Closed box
Size: 850 x 265 x 315mm (33.5 x 10.4 x 12.4 inches)
Weight: 19.8kg (43.5 lb)
Nominal Impedance: 4ohms resistive
Rated maximum power: 300W programme (into 4 ohms)
Frequency response: 50Hz to 20kHz +/-3dB (-6dB at 38Hz)
Sensitivity: 87/89*dB for a pink noise input of 2.83V (*dependent on contour control)
Maximum output: 112dB on programme peaks under typical listening conditions
Finish: Walnut, Rosewood or Black Ash real wood veneers
Drive units: B139 bass unit (SP1212), B160 midrange unit (SP1203), T33 tweeter (SP1210)
I'm running a Marantz NR1602, with an external Crown 1500 XLS (300 wpc) amp for the main speakers.
I have the Klipsch RW-12D as a sub.
My current main speakers are the Wharfedale Diamond 10.2 bookshelf speakers:
Bass/Mid Driver: 6.5"
Suitable Amplifier Power: 20 - 100 watts
Nominal Impedance: 6Ω
A/V Shielded: Yes
Sensitivity: 86 dB
Nominal Frequency Range: 40Hz - 24kHz
HF Limit (-10dB): 44kHz
Freq. Fb: 42Hz
Crossover Frequency: 1.8kHz
Dimensions (HWD): 14.33" H x 8.78" W x 11.85" D
Weight: 15 lbs. (Each)
I'm concerned about the efficiency and the impedance of the KEF speakers.
I wondering if the KEF speakers will give me more volume than the Wharfedales.
Any thoughts or opinions?