Apogee CaliperCaliper

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 3ohms 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. It would be interesting to know what people used to drive them other than the Krells of the time.

Positioned incorrectly or too close to walls and it can sound bloated in the bass.








 Specifications

Height

121cm

Width

61cm

Depth

7cm

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)  

Impedance nominal

3 ohms

Weight

32kg each

Finishes available

Light grey, Anthracite, or Taupe  

Price (1987)

2500