เข้าคู่ด้วย REVOX A-720 ที่สุด Tuner/Preamplifier ภายในเครื่องเดียวกัน ที่ออกแบบ และผลิตมาให้เล่นร่วมกับ REVOX A-722 ที่สุด Power Amplifier โดยเฉพาะได้อย่างยอดเยี่ยม
Specifications
General & Physical Specifications
• Type: Digital FM Tuner / Preamplifier ("Preceiver")
• Production Years: 1973–1978
• Display: Numerical indicator (Nixie) tubes for digital frequency display
• Dimensions: W 49 x H 16 x D 33 cm
• Weight: 12 kg
• Power Supply: Switchable AC voltage (110, 130, 150, 220, 240V / up to 250V)
FM Tuner Specifications
• Tuning Range:
87.00 –
107.95 MHz (420 channels in 50 kHz steps)
• Stabilization: Quartz-stabilized frequency synthesizer / PLL phase-locked loop
• Preset Stations: 5 programmable station presets
• Sensitivity: 1 µV (mono) / 10 µV (stereo)
• Signal-to-Noise Ratio: 70 dB (weighted ASA-A / mono-stereo specs vary around 67–70 dB)
• Total Harmonic Distortion (THD): 0.1% at 1 kHz
• Antenna Inputs: 240/300 ohm symmetrical DIN, 60/75 ohm coaxial BNC
Preamplifier Specifications
• Frequency Response: 20 Hz – 20 kHz (±1 dB)
• Total Harmonic Distortion (THD): 0.005% (audio section)
• Input Sensitivities: 3 mV (Phono MM), 100 mV (Line / Aux / Tape)
• Signal-to-Noise Ratio (SNR): 65 dB (Phono MM), 85 dB (Line / Aux / Tape)
• Outputs: 200 mV (Line), 1.5 V (Pre-out, RL 10 kΩ), dual switchable stereo outputs
• Tone Controls: Stepped bass, presence, and treble controls
• Inputs: 2x Phono MM, 2x Tape Recorders (with tape-monitoring/dubbing), 1x Aux
• Semiconductor Compliment: 37 ICs, 41–44 transistors, 6 FETs, 63–65 diodes, 4 rectifiers, and 4 Nixie tubes