Grundig R48 Stereo Receiver – Specifications (Vintage Hi-Fi) Type: AM/FM Stereo Receiver (audio amplifier + radio tuner) Years Produced: Late 1970s (around 1978–1980) Country of Origin: Germany (made by Grundig) Radio Section AM & FM reception (standard broadcast bands) FM stereo with PLL decoder for stereo reception Aerial connectors for FM 300 Ω and external AM antenna Amplifier / Audio Output power: ~50 W per channel into 4 Ω (stereo) Speaker outputs: Able to drive 4 speakers (two separate rooms/groups) Tone controls: Bass, mid, treble; stereo balance control Headphone outputs (DIN standard) Line outputs for tape or external recording devices General / Other Specs Multi-voltage AC (110–240 V) on some variants Automatic overload & speaker protection circuitry Typical vintage styling with analog tuner and control knobs Note: This is an older analog hi-fi unit — not a modern solid-state digital receiver.