Over the past decade, Lab.gruppen touring amplifiers have been praised by renowned FOH engineers and leading sound rental companies for their tight and transparent sound. The FP+ Series model FP 4000 continues this tradition. The FP 4000's performance is based on the patented Class TD output stage, which combines the efficiency of Class D with the sonic purity of Class B. The FP 4000 also features a Regulated Switch Mode Power Supply (R.SMPS) for stable rail voltages and a highly refined circuit layout for high power density. The Intercooler technology ensures cool operation under extreme demands. The FP 4000 offers adjustable input gain and Lab.gruppen's exclusive Voltage Peak Limiter (VPL) for maximum headroom in any application.
The Lab.gruppen FP 4000 is a dedicated touring amplifier delivering a total of 4000 W (2 x 2000 W @ 2 ohms) in a compact 2U chassis. It features a patented Class TD amplifier topology that combines Class B audio quality with Class D efficiency, supported by a Regulated Switch Mode Power Supply (R.SMPS) to maintain constant output power despite mains voltage fluctuations. The unit utilizes a proprietary Intercooler copper cooling system to ensure sustained high-power performance without sonic degradation.
| Dimensions | W: 483 mm, H: 88 mm, D: 396 mm |
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The amplifier delivers a total of 4000 W when both channels are driven.
The maximum output current per channel is 50 A peak.
Operating conditions are re-checked every six seconds.