power amp - My HIFI - 二手音響，喇叭，各類影音 (官方網站)

QUAD 405-2

已改機<br>更改成分體電源, 用咗同廠606火牛<br>每邊輸出100w 8ohms<br>操作正常, 歡迎試音, 試完唔啱唔緊要<br>機身尺寸: 闊34, 高12, 深20cm<br>分體電源尺寸: 闊15.5, 高12.5, 深19.5cm<br><br>Type Stereo power amplifier<br>* Compensation value when both channels are driven simultaneously.<br>Power and distortion factor<br>(8 Ω load, sine wave input) 0.01% or Less (at 100 Hz, 100W output)<br>0.01% or Less (at 1 kHz, 100W Output)<br>0.01% or Less (at 10 khz, 100W output)<br>Output internal impedance 3.3 μ H in series with 0.03 Ω<br>Offset voltage 7 mv or less<br>Frequency Response (1 kHz Standard) Low frequency : -1dB at 20 Hz<br>High frequency : -0.1 dB at 20 Hz, -3dB at 50 kHz<br>Input sensitivity 0.5 V (8 Ω Load, 100W Output)<br>Input impedance 20k Ω / 220 pf<br>Slew rate 0.1 V / μ s<br>Maximum input limit If the input signal is up to + 20 dB, it will be restored immediately.<br>Crosstalk<br>(at 1k Ω input load) 80dB(100Hz)<br>70dB(1kHz)<br>60dB(10kHz)<br>Signal-to-noise ratio -96dB (for A correction)<br>-93dB (uncorrected)<br><br>MY HIFI Company<br>電話/ whatsapp: 63231067 <br>cash/ visa/ master/ payme/ fps<br>收購二手音響, 代客寄賣, 交換, 送貨服務

NAD 1130 preamp & 2155 power amp

前後級一套, <br>操作正常, 歡迎試音, 試完唔啱唔緊要<br><br>NAD 1130 <br>Stereo Preamplifier <br>Specifications<br>Frequency response: 20Hz to 20kHz<br>Total harmonic distortion: 0.02%<br>Input sensitivity: 0.1mV (MC), 1.5mV (MM), 90mV (line)<br>Signal to noise ratio: 75dB (MC), 85dB (MM), 90dB (line)<br>Output: 13V (Pre out Max)<br>Weight: 4.25kg<br><br>NAD 2155<br>Stereo Power Amplifier<br>Specifications<br>Power output: 55 watts per channel into 8Ω (stereo), 125 watts into 8Ω (mono)<br>Frequency response: 20Hz to 20kHz<br>Total harmonic distortion: 0.03%<br>Damping factor: 50<br>Input sensitivity: 1.3V<br>Speaker load impedance: 2Ω (minimum)<br>Dimensions: 420 x 108 x 380mm<br>Weight: 7.8kg<br><br>MY HIFI Company<br>電話/ whatsapp: 63231067 <br>歡迎試音, 試完唔啱唔緊要<br>cash/ visa/ master/ payme/ fps<br>收購二手音響, 代客寄賣, 交換, 送貨服務