Electrical Specifications#
Complete electrical specifications from the Alpine service manual.
Power Output#
| Configuration | Load | THD+N | Power |
|---|
| 4-channel | 4Ω × 4 | 0.8% | 40W |
| 4-channel | 2Ω × 4 | 1.0% | 50W |
| 2-channel BTL | 4Ω × 2 | 1.0% | 100W |
Total Harmonic Distortion#
| Configuration | Power | Frequency | THD |
|---|
| 4Ω × 4 | 40W | 20Hz-20kHz | 0.2% |
| 2Ω × 4 | 50W | 20Hz-20kHz | 1% |
| 4Ω BTL × 2 | 100W | 20Hz-20kHz | 1% |
| Gain Position | Output Level | Sensitivity |
|---|
| 0.2V | 12.6V sine | 0.2V ±0.05V |
| 4.0V | 12.6V sine | 4.0V ±1V |
| Gain Position | Output Level | Sensitivity |
|---|
| 0.2V | 12.6V sine | 0.4V ±0.1V |
| 4.0V | 12.6V sine | 8.0V ±2V |
Pre-Out Level#
| Input | Output |
|---|
| 0.5V RMS | 0.5V ±0.1V |
Frequency Response#
| Frequency | Reference | Level |
|---|
| 10Hz | 1kHz @ 0dB | -1 to 0dB |
| 50kHz | 1kHz @ 0dB | -1 to 0dB |
Channel Separation#
| Condition | Frequency | Separation |
|---|
| Input shorted | 1kHz, 1W | 55dB |
Signal-to-Noise Ratio#
| Condition | S/N |
|---|
| Input shorted, Signal 40W | 100dB |
Remote Turn-On#
| Parameter | Value |
|---|
| ON Voltage | 5V - 7.5V |
| Current Drain | 1.1mA ±0.3mA |
Current Drain#
| Condition | Current |
|---|
| No signal | 0.5A - 1.2A |
| 40W × 4 (4Ω, 1kHz) | 18A ±5A |
| Backup (15 sec later) | 0.1mA |
Power Source#
| Parameter | Value |
|---|
| Nominal Voltage | DC 14.4V |
| Operating Range | 10.5V - 16V |
Fuse Requirements#
| Location | Rating |
|---|
| Battery Line | 15A (Peak) × 2 |
Physical Specifications#
| Parameter | Value |
|---|
| Width | 279mm |
| Height | 60.33mm |
| Depth | 241.4mm |
| Weight | 2.7kg |
Internal Voltage Rails#
| Rail | Voltage | Purpose |
|---|
| +25V | +25VDC | Output stage positive |
| -25V | -25VDC | Output stage negative |
| +23V | +23VDC | Driver stage positive |
| -23V | -23VDC | Driver stage negative |
| +14V | +14VDC | Preamp positive |
| -14V | -14VDC | Preamp negative |
| +5V | +5VDC | Reference (IC920) |