Detailed Info about the Apogee Caliper
A nicely restored model – the right one I mean:-)
Generic Info
The Caliper was Apogee’s first ‘small’ full range 2 way ribbon speaker. However small sized did not mean easy to drive.
The impedance was an average 3 ohms but was more difficult to drive than that suggests. It required a brute of an amplifier, at the time only something like a Krell KSA-50 was man enough for the job.
Positioned incorrectly or too close to walls and it could sound bloated in the bass.
Specifications
1987-1989
Original Retail $1650
Height 121 cm
Width 61 cm
Impedance 3 ohms
Bass driver
Aluminium/Kapton panel
Midrange/Tweeter
Aluminium/Kapton (3 segment)
Max Sound Level
103dB
Sensitivity @ 3m
84dB
Frequency response
40Hz (-3dB) 20kHz
Crossover frequency (acoustic)
1kHz
Suggested amp power
100W (into 8 ohms) 200W (into 4 ohms)
Weight
32kg each
Finishes available
Light grey, Anthracite, or Taupe
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