Hertz SP4900 – SPL SHOW 4CH 1000W D-CLASS AMPLIFIER
The Hertz SP4.900 is the first Hertz amplifier featuring the renewed Hertz ADC (Advanced D-Class) output stage, reaching up to 85 per cent efficiency and delivering an impressive power rating of 160Wx4 (4 Ohm) RMS or 500Wx2 (4 Ohm) RMS when bridged, with an ultra-compact size of 211.6 x 130 x 49mm. Being ultra-compact with impressive power, the SP4.900 is the ideal choice for motorcycle applications and for under-seat in sports cars and behind-seat installations in trucks.
Features
1. Up to 85 per cent efficiency thanks to ADC (Advanced D-Class) output stage.
2. USS (Universal Speakers Simulators) allows it to work with head units featuring the speaker load detection circuit
3. 160Wx4 RMS with an ultra-compact size 211.6 x 130 x 49mm
4. IP55 Aluminium chassis for maximum protection against humidity and external agents
5. No cooling fan to prevent internal accumulation of dirt
6. Sealed power cord, line inputs and speaker outputs to prevent oxidation
7. Crossovers filters and controls on a single side to facilitate calibration when the product is installed
TECHNOLOGIES
Advanced D-Class (ADC) Up to 87% efficiency thanks to ADC (Advanced D-Class) output stage
USS (Universal Speakers Simulators) allows SP 4.900 to work with head units featuring the “speaker load detection” circuit
Ultra Compact 160 x 4 RMS (4Ω) with ultra-compact size (211.6 x 130 mm)
GENERAL SPECS
Channels | 4 – 3 – 2 |
Nominal power supply voltage | 11 ÷ 15 VDC |
Pulse Operating voltage | 6 ÷ 16 VDC |
Idling current | 1.1 A |
Idling current when off | 0.03 mA |
Consumption @ 14.4 VDC, MIN load impedance (Max Musical Power) | 50 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 | 200 |
Bandwidth @ -3 dB | 10 Hz ÷35 kHz |
S/N ratio (A weighted @ 1 V Input) | 105 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/inch) | 211.6 x 130 x 49 / 8.33 x 5.118 x 1.929 |
Weight (kg/lbs) | 2.15 / 4.74 |
Adjustable Crossovers | yes |
OUTPUT POWER
Output Nominal Power (RMS) @ 14.4 VDC, THD 1%: | |
4 Ch: | 160 W x 4 (4Ω) |
4 Ch: | 250 W x 4 (2Ω) |
3 Ch: | 160 W x 2 (4Ω) + 500 W x 1 (4Ω) |
3 Ch: | 250 W x 2 (2Ω) + 500 W x 1 (4Ω) |
2 Ch: | 500 W x 2 (4Ω) |
Total Power | 1000 W |
INPUTS/FILTERS
INPUTS: | Pre IN / Speaker IN |
Ch 1-2 | |
Full | – |
Hi-pass | 50 ÷ 5k Hz @ 12 dB/Oct. |
Lo-pass: | 50 ÷ 5k Hz @ 12 dB/Oct. |
Ch 3-4 | |
Full | – |
Hi-pass | 50 ÷ 5k Hz @ 12 dB/Oct. |
Lo-pass | 50 ÷ 5k Hz @ 12 dB/Oct. |
Bass Boost 45Hz (adjustable) | (0 ÷ 8) dB [LP = ON only] |