Mille power amplifiers are born to fully enhance the outstanding performance of the Mille speakers. The new ADC (ADVANCED D-CLASS TECHNOLOGY) ensures pure listening pleasure while keeping a compact size with unmatched power efficiency. The heat sink, engineered with double technology, extrusion and aluminium die-casting, enables the Mille Power amplifiers to work constantly at full power without ever overheating, further maximizing thermal efficiency. The Hertzaudio car amplifier ML Power 4 (4 x 250 W 2 Ω) is the obvious choice for a top level front-rear Mille system.
| Channels | 4 |
| Class | D-class |
| Power supply voltage / fuse | 11÷15 VDC |
| Idling current | 1.5 A |
| Idling current when off | 0.04 mA |
| Consumption @ 14.4 VDC, 2Ω, Max Musical Power | 50 A |
| Remote IN | 4 ÷ 15 VDC - 1 mA |
| ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable) | Automatic Remote Turn-On/Off with Speaker-In |
| Distortion - THD @ 100 Hz, 4Ω, 70% Rated Power | 0.08 % |
| Bandwidth A | (-3 dB, 2 VRMS, 4 Ω): 5 ÷ 55k Hz |
| S/N ratio A | (A weighted @ 1 V): 100 dB |
| Damping factor A | (100 Hz @ 4Ω): 80 |
| Input sensitivity Pre-In | 0.2 ÷ 5 V RMS |
| Pre In Impedance | 15 kΩ |
| Input sensitivity Speaker-In | 0.8 ÷ 20 V RMS |
| Input impedance Speaker-In | 470 Ω |
| Total Power RMS | 1000 W |
| Minimum load impedance |
4 Ch 2Ω 3 Ch 2 x 2Ω ÷ 1 x 4Ω 2 Ch 4Ω |
| Output Power (RMS) @14.4 VDC, 1% THD |
4 Ch: 150 W x 4 (4Ω) 4 Ch: 250 W x 4 (2Ω) 3 Ch: 150 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) |
| Adjustable Crossover | Yes |
| Input Type | Pre IN / Speaker IN |
| Filters Outputs | Pre OUT |
| Filter Pass A | Ch Filters: Full/Hi-Pass/Lo-Pass 50 ÷ 5k Hz (2 range) @ 12 dB/Oct |
| Filter Pass B | Ch Filters: Full/Hi-Pass/Lo-Pass 80 ÷ 3.3k Hz @ 12 dB/Oct. |
| Fuse | 2 x 40 A |
| Weight | 2.45 kg |
| Dimension A | 289 mm |
| Dimension B | 272 mm |
| Dimension C | 170 mm |
| Dimension D | 148 mm |
| Dimension E | 46.7 mm |
Ensures pure listening pleasure while keeping a compact size with unmatched power efficiency.
It monitors the amplifiers operating status in real time pointing out possible faults such as overheating, excessive loads on the outputs or short-circuits on cables or loudspeakers. This information allows the user to identify possible issues with the installation and to intervene before the amplifier goes into protection to prevent any damages.
The ML Power IN module features a Speaker In input (with balanced circuitry minimizing noise) for OEM head units and an RCA IN input for aftermarket sources. When the Speaker In is used, the ART™ function (Automatic Remote Turn On-Off) is enabled, managing the amplifier remote turn on to avoid unpleasant “bumps”.
The heat sink, engineered with double technology, extrusion and aluminium die-casting, enables the Mille Power amplifiers to work constantly at full power without ever overheating, further maximizing thermal efficiency.
