PYE HF25 & HF25A Pre / Power Combination PYE HF25 (2) Monoblocks (Excellent condition) Monoblocks HF25 Specifications Serial Numbers: F177033 & F177071 Power output: 25 watts into 8Ω (mono) Frequency response: 2Hz to 160kHz Total harmonic distortion: 0.3% Damping factor: 35 Input sensitivity: 0.5V Signal to noise ratio: 90dB Speaker load impedance: 3.75Ω to 60Ω Valve complement: 2 x KT66, 1 x ECC33, 1 x ECC35, 1 x GZ32 Dimensions: 345 x 254 x 177mm Weight: 12.25kg Monoblocks are in very good condition having been serviced June 2023. Cosmetically excellent for age, the chassis are still very bl