K Series K120, K140, K160

In 1991, the C-Series was replaced by the K-Series - with its three entry-level conventional loudspeakers - and the Q-Series – a more upmarket range of three Uni-Q based models. The K-Series represented KEF’s continuing commitment to provide quality loudspeakers at the lower price points, a tradition which started with the Celeste and Cresta of the 1960s, and continued with the Coda, Cantor and Celeste III of the 1970s and 80s.
 
The new K-Series models featured an attractive ‘louvred’ baffle, a quality 25mm ferro-fluid cooled tweeter, paper coned bass-midrange drive units for high sensitivity and substantial cabinets. They were carefully designed to offer an easy load to the budget amplifiers they were likely to be partnered with.
 
K120 (1991-93)
 
The K120 was a compact two-way system with a 6.5”(165mm) bass/midrange unit and a deeper than average cabinet to give the extra volume required for better than average bass performance. K120 was ideal for a first or second system, an audio-visual installation, or as part of a subwoofer/satellite system.
 
K140 (1991-93)
 
The K140 was a direct descendent of the Coda II, III, IV which was a hugely successful loudspeaker both in the UK and abroad. A two-way system for use on a bookshelf or on stands, the K140 used a 200mm (8inch) bass driver to provide good bass performance and high output capability but was compact enough to fit neatly into a wide range of listening rooms.
 
K160 (1991-93)
 
The K160 offered a decent increment in performance over the K140 with the addition of a passive radiator in a larger enclosure volume. A two-way system for floor standing use, designed to be positioned away from the room boundaries, it offered the traditional KEF virtues of accurate tonal balance, realistic stable stereo imaging, together with good bass extension and high output capability.
 
Specification: K120
System type: Two-way, wall/shelf-mount
Enclosure type: Closed box
Size: 340 x 205 x 246mm (13.3 x 8.1 x 9.7 inches)
Weight: 5.6kg (12.5 lbs)
Nominal Impedance: 8ohms
Amplifier requirements: 10-80W
Frequency response: 65Hz to 20kHz +/-3dB at 2m on reference axis (-6dB at 50Hz)
Sensitivity: 87dB at 1m/2.83V (anechoic conditions)
Maximum output: 107dB on programme peaks under typical listening conditions
System: SP3132
Drive units: B160 bass unit (SP1283), 25mm tweeter (SP1231)
Crossover: SP2176
 
Specification: K140
System type: Two-way, shelf/stand-mount
Enclosure type: Closed box
Size: 490 x 260 x 246mm (19.3 x 10.2 x 9.7 inches)
Weight: 8.75kg (19.25 lbs)
Nominal Impedance: 8ohms
Amplifier requirements: 10-100W
Frequency response: 55Hz to 20kHz +/-3dB at 2m on reference axis (-6dB at 45Hz)
Sensitivity: 89dB at 1m/2.83V (anechoic conditions)
Maximum output: 109dB on programme peaks under typical listening conditions
System: SP3133
Drive units: B200 bass unit (SP1284), 25mm tweeter (SP1231)
Crossover: SP2177
 
Specification: K160
System type: Two-way, floor standing
Enclosure type: Passive radiator
Size: 750 x 260 x 246mm (29.5 x 10.2 x 9.7 inches)
Weight: 11.8kg (26 lbs)
Nominal Impedance: 8ohms
Amplifier requirements: 10-150W
Frequency response: 48Hz to 20kHz +/-3dB at 2m on reference axis (-6dB at 40Hz)
Sensitivity: 89dB at 1m/2.83V (anechoic conditions)
Maximum output: 110dB on programme peaks under typical listening conditions
System: SP3134
Drive units: B200 bass unit (SP1284), BD200 passive radiator (SP1289), 25mm tweeter (SP1231)
Crossover: SP2177