150 W RMS Hi-Fi audio power amplifier at 4 ohms

The amplifier has a voltage gain of about 20, an input impedance of 45 kohm and an input sensitivity of 1.45 Veff on 8 ohm and 1.5 Veff on 4 ohm to reach maximum rated power.

The bandwidth extends from 10 Hz to 50 kHz (-3 dB), ensuring a wide, linear frequency response suited to complex audio signals. The required power supply is ±46 Vdc, with a maximum current draw of 6.1 A on 4 ohm and 3.45 A on 8 ohm.

The mechanical structure is solid and designed for intensive use, ensuring reliable operation even under continuous load. The amplifier is suitable for driving high-efficiency speakers (≥90 dB SPL) in settings such as gyms, dance halls, conference rooms or fixed installations.

Important note: The heat sink shown in the images is not included in the kit. To ensure adequate heat dissipation, we recommend using the ADIS69X200 model (see related products). Alternatively, a heat sink with equivalent or higher performance can be used, capable of properly dissipating the heat generated by the power output stages.

Soldering required for assembly. The kit comes complete with instructions.

• Output power into 4 ohm (@1kHz): 150 W RMS
• Output power into 8 ohm (@1kHz): 95 W RMS
• Sensitivity at max power into 8 ohm: 1.45 Veff
• Sensitivity at max power into 4 ohm: 1.5 Veff
• Supply voltage: ±46 Vdc (via dual power supply modules and a transformer with 35-0-35 secondary)
• Max current draw into 8 ohm: 3.45 A
• Max current draw into 4 ohm: 6.1 A

Important note: the heat sink and power supply are not included in the kit and must be purchased separately. Both are available in our shop (see the related products for this item).