Castle Durham 900 vintage speakers

Castle Durham 900" a model of vintage bookshelf loudspeakers made by the British company Castle Acoustics, known for their build quality and sound performance. These speakers were introduced around 1994 and are described as having a crisp, detailed sound and being easy to drive. They are a two-way system with a nominal impedance of 8 ohms, and a frequency response of 60-22000 Hz.  Manufacturer: Castle Acoustics, a British company Product type: Two-way bookshelf loudspeakers. Key features: Impedance: 8 Ohms Sensitivity: 90 dB Power handling: 70 watts Frequency response: 60 - 22000 Hz Dimensions: 21 x 40 x 24 cm (W x H x D) Construction: Real wood veneer, made in England Bi-wiring: Can be bi-wired