Hertz SPL 4 channel amplifier - 4x150w
The Hertz SP 4.500 is equipped with a Hertz developed ADC (Advanced D-Class) output stage, which reaches an impressive 85% efficiency and delivers an impressive power of 90 x 4 (4Ω) W RMS or 300 W x 2 (4Ω) W RMS in bridged mode. All this is achieved with an ultra-compact size of 192.7 x 130 x 49mm. This ultra-compact amplifier is the ideal choice for motorcycle mounting as well as under-seat installations in passenger cars or similar. With its impressive power and compact design, the Hertz SP 4.500 delivers a perfect combination of performance and space saving.
TECHNICAL DATA:
| Channels | 4 - 3 - 2 |
| Nominal power supply voltage | 11 ÷ 15 VDC |
| Pulse Operating voltage | 6 ÷ 16 VDC |
| Idling current | 0.9A |
| Idling current when off | 0.03mA |
Consumption @ 14.4 VDC, MIN load impedance |
27 A |
| Remote IN | 6 ÷ 15 VDC (9 mA) |
| DC-REM - Remote Turn on by SPK DC from OUTPUT BTL speakers | 3.5 ÷ 7 VDC |
| Distortion - THD @ 1 kHz, 4Ω, 70% Rated Power | <0.02% |
| Damping factor @ 1 kHz, 4Ω, 2 VRMS | >150 |
| Bandwidth @ -3 dB | 10Hz ÷ 35kHz |
| S/N ratio (A weighted @ 1 V Input) | 100 dBA |
| Pre-In sensitivity | 0.6 ÷ 6 VRMS |
| Speaker-In sensitivity | 2.2 ÷ 22 VRMS |
| Minimum load impedance: | |
| @ 4Ch | 2Ω |
| @ 3Ch | 2Ω + 2Ω + 4Ω |
| @ 2Ch | 4Ω |
| IP Rating | IP55 |
| Operating Temperature Range | 0°C (32°F) to 55°C (131°F) |
| Max size (mm) | 192.7 x 130 x 49 |
| Weight (kg) | 2.15 |
| Adjustable Crossovers | yes |
INPUT / FILTERS
| INPUTS: | Pre IN / Speaker IN |
| Chapters 1-2 | |
| Full | Yes |
| Hi-pass | 50 ÷ 5k Hz @ 12 dB/Oct. |
| Low pass: | 50 ÷ 5k Hz @ 12 dB/Oct. |
| Chapters 3-4 | |
| Full | Yes |
| Hi-pass | 50 ÷ 5k Hz @ 12 dB/Oct. |
| Lo pass | 50 ÷ 5k Hz @ 12 dB/Oct. |
| Bass Boost 45Hz (adjustable) | OUT 3 - 4 (0 ÷ 8) dB [LP = ON only] |
OUTOUT/POWER
| Output Nominal Power (RMS) @ 14.4 VDC, THD 1%: | |
| 4 Channels: | 90W x 4 (4Ω) |
| 4 Channels: | 150W x 4 (2Ω) |
| 3 Ch: | 80 W x 2 (4Ω) + 330 W x 1 (4Ω) |
| 3 Ch: | 145 W x 2 (2Ω) + 300 W x 1 (4Ω) |
| 2 Ch: | 300W x 2 (4Ω) |
| Total Power RMS | 600W |
DIMENSIONS AND WEIGHT
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