Capella, Capella II, Chorus, Crescendo, Cadence

Capella (1981)
The Capella (also known as the Chorus) utilized a lightweight paper diaphragm for the bass driver, which coupled with a high efficiency cone tweeter, allowed for a system of high sensitivity and high output capability in a medium sized enclosure.
 
Capella II (1982-83)
The Capella II was similar in design to the Coda II and III models but with slightly different drive units and crossover network.
 
Chorus (1981)
The Chorus (also known as the Capella) utilized a lightweight paper diaphragm for the bass driver, which coupled with a high efficiency cone tweeter, allowed for a system of high sensitivity and high output capability in a medium sized enclosure.
 
Crescendo (1984)
The Crescendo was a very similar design to the Carina II - a two-way, three drive unit loudspeaker of high efficiency capable of producing high quality sound loud enough to satisfy the needs of those who like to listen at realistic, live volume levels.
The unusual layout of the drive units in which the high frequency unit is mounted centrally between two identical low frequency units was originally employed by KEF for professional high-level monitoring loudspeakers. The main benefits are high sensitivity due to the parallel connection of the two low frequency units and remarkable stability of the stereo image as a result of the symmetrical sound radiation pattern – both vertically and horizontally – right through the audible spectrum.
 
The twin bass drivers bring other advantages including higher maximum output and reduced distortion, making Crescendo an ideal loudspeaker for heavy rock music as well as the newly developed digital compact discs with their extended bass response.
 
Cadence (1984)
The Cadence was a very similar design to the Carina/Concerto II - a two-way, three drive unit loudspeaker of high efficiency capable of producing high quality sound loud enough to satisfy the needs of those who like to listen at realistic, live volume levels.
The system format followed on from that used in the Concord IV – what we call today a 2.5-way system – where the two bass drivers operate together at the low frequencies but only the upper unit continues through the midrange to the crossover with the high frequency unit. The twin bass drivers bring advantages including higher maximum output and reduced distortion, making Cadence an ideal loudspeaker for heavy rock music as well as the newly developed digital compact discs with their extended bass response.
 

Specification: Capella
System Type: Two-way, bookshelf/stand-mount
Enclosure type: Closed box
Size: 470 x 280 x 220mm (18.5 x 11 x 8.7 inches)
Weight:
Nominal Impedance: 8 ohms
Rated maximum power: 50W programme
Frequency response: 70-17,000Hz +/-3dB at 2m on design axis (-10dB at 50Hz and 22kHz)
Sensitivity: 89dB at 1m for a pink noise input of 1W (anechoic conditions)
Maximum output: 106dB on programme peaks under typical listening conditions
System: SP1181
Drive units: bass unit (SP1078) and tweeter (SP1077)
Crossover: SP2000
 
Specification: Capella II
System Type: Two-way, bookshelf/stand-mount
Enclosure type: Closed box
Size: 470 x 280 x 226mm (18.5 x 11 x 8.9 inches)
Weight: 6kg (13.2 lb)
Nominal Impedance: 8 ohms
Rated maximum power: 50W programme
Frequency response: 65-18,000Hz +/-3dB at 2m on design axis (-10dB at 50Hz and 22kHz)
Sensitivity: 87dB at 1m for a pink noise input of 1W (anechoic conditions)
Maximum output: 104dB on programme peaks under typical listening conditions
System: SP3012
Drive units: B200 bass unit (SP1086), T33 tweeter (SP1080)
Crossover: SP2020
 
Specification: Chorus
System Type: Two-way, bookshelf/stand-mount
Enclosure type: Closed box
Size: 470 x 280 x 220mm (18.5 x 11 x 8.7 inches)
Weight:
Nominal Impedance: 8 ohms
Rated maximum power: 50W programme
Frequency response: 70-17,000Hz +/-3dB at 2m on design axis (-10dB at 50Hz and 22kHz)
Sensitivity: 89dB at 1m for a pink noise input of 1W (anechoic conditions)
Maximum output: 106dB on programme peaks under typical listening conditions
System: SP1181
Drive units: bass unit (SP1078) and tweeter (SP1077)
Crossover: SP2000
 
Specification: Crescendo (as Carina II):
System Type: Two-way, stand-mount
Enclosure type: Closed box
Size: 600 x 300 x 249mm (23.65 x 11.75 x 10 inches)
Weight: 9.4kg (20.7 lb)
Nominal Impedance: 8 ohms
Rated maximum power: 80 programme
Frequency response: 55Hz to 20kHz +/-3.0dB at 2m on design axis (-10dB at 45Hz and 30kHz)
Sensitivity: 89dB at 1m for a pink noise input of 1W (anechoic conditions)
Maximum output: 104dB on programme peaks under typical listening conditions
System: SP3040
Drive units: 2 x B200 bass unit (SP1088), T33 tweeter (SP1192)
Crossover: SP2048
 
Specification: Cadence (as Carina):
System Type: Two-way, stand-mount
Enclosure type: Closed box
Size: 570 x 330 x 250mm (23.5 x 13 x 9.85 inches)
Weight: 9.4kg (20.7 lb)
Nominal Impedance: 8 ohms
Rated maximum power: 70 programme
Frequency response: 55Hz to 20kHz +/-3.0dB at 2m on design axis (-10dB at 45Hz and 30kHz)
Sensitivity: 91dB at 1m/1W (anechoic conditions)
Maximum output: 109dB on programme peaks under typical listening conditions
System: SP3045
Drive units: 2 x B200 bass unit (SP1088), T33 tweeter (SP1192)
Crossover: SP2049