| Low-Noise Designs | A-307R |
|---|
| Aero Wing Chassis | Yes |
| “Silent” Microprocessor System | Yes |
| “DIRECT” Switch | Yes |
| Local Off Circuit (Tone/Phono) | Yes, Phono |
| High-Quality Parts | A-307R |
|---|
| Complementary Capacitor Pair | Yes |
| Speaker A/B Switching Relay | Yes |
| Motor-Driven Volume Control | Yes |
| Conveniences | A-307R |
|---|
| SR (System Remote) Control Unit | Yes |
| Two-Way Dubbing | Yes |
| Audio Inputs | 6 |
| Terminals | A-307R |
|---|
| SR (System Remote) Terminal | Yes |
| Headphone Output | Yes |
| Speaker Outputs | 2 |
| Discrete Outputs (All Channels) | Yes |
| A+B (Parallel) | Yes |
| Amplifier Section | A-307R |
|---|
| DIN Power output (1 kHz, 4 Ω) | 2 x 80 W |
| DIN Power output (1 kHz, 8 Ω) | 2 x 55 W |
| Continuous Power output 20 — 20,000 Hz, 4 Ω | 2* x 65 W |
| Continuous Power output 20 — 20,000 Hz, 8 Ω | 2* x 45 W |
| Total Harmonic Distortion (20 — 20,000Hz, 8 Ω, at –3 dB) | 0,08 % |
| Input (Sensitivity/Impedance) | A-307R |
|---|
| PHONO (MM) | 2,8 mV / 50 k/ohm |
| CD, TUNER, AUX, TAPE | 200 mV / 50 k/ohm |
| Frequency Response | A-307R |
|---|
| CD, TUNER, AUX, TAPE | 5 — 100.000 Hz*, +0 dB, –3 dB |
| Signal-to-Noise Ratio (DIN) | A-307R |
|---|
| PHONO (MM) | 71 dB / 67 dB* |
| CD, TUNER, AUX, TAPE | 91 dB / 71 dB* |
| Miscellaneous | A-307R |
|---|
| Power Requirements | 220 — 230 V, 50 — 60 Hz |
| Power Consumption | 140 W |
| Dimensions (W x H x D) | 420 x 114 x 307 mm |
| Weight | 5,9 kg |
| Power Output | A-307R |
|---|
| DIN Continuous Power Output (1 kHz) 4 Ω | 2 x 80 W |
| DIN Continuous Power Output (1 kHz) 8 Ω | 2 x 55 W |
| Wide Range Technogoly | A-307R |
|---|
| Wide-Range Linear Circuit | Yes |
| Audio Features | A-307R |
|---|
| Direct Energy MOSFET Circuit | Yes |
| Low-Impedance Driving Capability | Yes |
| Tone Controls | Yes |
| Loudness | Yes |
| Large Insulators | Yes |
| Construction | A-307R |
|---|
| Symmetrical Construction | Yes |
