This pair is tested and refurbished thanks to a 10-point repair and testing regime (including a 50hz sine wave calibration and full frequency audio test) which makes sure original design performance is restored before the units are offered for sale. The repair is protected by a 2 year guarantee.    Again this is the best second hand value on the market if you are not buying these new! at !!    Re-foamed LF drivers in 2023.perfect addition to a home surround sound setup or studio monitoring set up. 

Key Features: 

Sensitivity: 89 dB SPL, 1 W, 1 m (3.3 ft) High power handling (175 W pink noise) with integral protection circuit network Molded enclosure with shielded magnet structure Components: 165 mm (6 1⁄2 in) low frequency loudspeaker 25 mm (1 in) pure titanium dome tweeter   The Control 5 is a high performance, wide range control monitor suitable for use as the primary sound source in a variety of applications. Smooth, extended frequency response combines with wide dynamic capabilities to provide acoustic performance that makes the Control 5 ideal for recording studios, audio-video control rooms, remote trucks and broadcast studios. Clean, functional visual design makes the Control 5 also ideal for foreground music systems, moderate level sound reinforcement, discotheques and music playback systems.   A 165 mm (61⁄2 in) low frequency driver provides solid, powerful bass response to 50 Hz. High frequency response to 20 kHz is handled by a pure titanium 25 mm (1 in) dome. Both transducers are magnetically shielded, allowing for use in close proximity to video monitors. The dividing network incorporates protection circuitry to prevent system dam-age and utilises high quality components including bypass capacitors for outstanding transient accuracy. Moulded of dense polypropylene foam, with a finish of black, gray or white, the Control 5 enclosure offers a pleasing shape that fits easily into any environment. Wall, ceiling, rack and tripod mounting systems allow positioning of the system in exactly the right spot for optimum performance.   Specifications: 75 Hz to 20 kHz I75 W 89 dB SPL, 1 W, 1 m (3.3 ft)  2.8 4.5 4 ohms 3 kHz Positive Voltage to + terminal causes outward low frequency cone motion,  Polypropylene structural foam Black or white  387 mm H x 251 mm W x 229 mm D 151⁄4 in H x 9 7/8 in W x 9 in D  4.5 kg (10 lbs) 11 kg (24 lbs)