Comparing Pionner vs Marantz

Comparing the sound of two little hifi amplifiers: Marantz 1040 Pioneer sa-7300 With Bowers & Wilkins dm-6 speakers Streamer Raspeberry Pi + Allo Minidac Volumio + TIDAL Hifi Marantz Specifications Power output: 20 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.3% Input sensitivity: 2.1mV (MM) Dimensions: 360 x 120 x 280mm Weight: 7.5kg Year: 1974-78 Pionner Specifications Power output: 35 watts per channel into 8Ω (stereo) Frequency response: 10Hz to 50kHz Total harmonic distortion: 0.3% Damping factor: 25 Input sensitivity: 2.5mV (MM), 150mV (line) Signal to noise ratio: 70dB (MM), 90dB (line) Output: 150mV (line), 30mV (DIN) Semiconductors: 4 x IC, 20 x transistors, 16 x diodes Dimensions: 350 x 125 x 282mm Weight: 7.5kg Year: 1976