Pioneer A-504R

Brand: Pioneer

The Pioneer A-504R is a high-performance stereo integrated amplifier introduced by Pioneer in the late 1970s. It features a power output of 50 watts per channel (into 8 ohms) and includes a built-in phono equalizer for connecting turntables. The amplifier uses high-quality components such as custom-made capacitors and iron-core transformers, which are meant to deliver detailed and accurate sound reproduction. The A-504R also features a rugged, metallic construction for durability and aesthetics. It is known as a beloved and sought-after classic among audiophiles who appreciate vintage amplifier designs.

• Power Output: 55W into 8Ω (stereo)
• Frequency Response: 5Hz to 100kHz
• Distortion: 0.03%
• Speaker Impedance:
• Input Sensitivity: 2.8mV (mm), 200mV (line)
• Signal to Noise Ratio: 89dB (mm), 107dB (line)
• Line Output: 200mV (line)
• Dimensions: 420 x 360 x 125 mm
• Weight: 8.1 kg
• Year: 1995
• Price: