Linie Pioneer.
1. Pioneer SA-540 - Stereo Integrated Amplifier (1983)
Specifications
Power output: 40 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 70kHz
Total harmonic distortion: 0.05%
Damping factor: 30
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 72dB (MM), 98dB (line)
Output: 150mV (line)
Speaker load impedance: 6Ω to 16Ω
Dimensions: 420 x 98 x 237mm
Weight: 4.5kg
Year: 1983

2. Pioneer CT-540 - Stereo Cassette Tape Recorder (1983)
Specifications
Type: 2-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.76 cm/s
Heads: 1 x record/playback, 1 x erase
Motor: 1 x reel, 1 x capstan
Tape Type: type I, CrO2, Metal
Noise Reduction: B
Input: 300mV (line), 0.5mV (mic)
Output: 0.45V (line)
Year: 1983

3. Pioneer TX-940 - AM/FM Digital Synthesized Tuner (1983)
Specifications
Type: Mono/Stereo Tuner
Tuning Bands: FM, MW, LW
Tuning Scale: Digital
FM Tuning Range: 87.5 to 108 MHz
MW Tuning Range: 522 to 1611 kHz
LW Tuning Range: 153 to 360 kHz
Sensitivity: 0.95uV (FM), 250uV (MW), 1200uV (LW)
Signal to Noise Ratio: 80dB (FM), 50dB (MW), 50dB (LW)
Distortion: 0.08% (FM)
Selectivity: 56dB (FM), 40dB (MW), 40dB (LW)
Frequency response: 30Hz to 15kHz (FM)
Output: 700mV (FM), 150mV (MW), 150mV (LW)
Dimensions: 420 x 60 x 223mm
Weight: 2.5kg
Year: 1983