Stable down to 2 Ohms, the Wharfedale Pro DP-4065 Amplifier is a 4-channel amplifier from our DP Series, designed for professional live sound reinforcement and fixed installation environments requiring reliable, high-efficiency power delivery. It delivers 650 W per channel at 8 Ω, 1100 W at 4 Ω, and up to 3740 W bridged at 4 Ω, providing excellent headroom and system control. The DP-4065 features an advanced Class D topology with a precision-engineered switch-mode power supply, ensuring maximum efficiency, low distortion and dependable performance across a wide range of applications. Supporting 70 V Hi-Z operation and flexible routing options, it’s ideal for installers and rental systems alike. Compact, lightweight and rugged, DP-4065 offers the perfect balance of performance, portability and reliability — a true workhorse amplifier for professional use. Specification Value Amp Channels 4 Topology Class D Stable at 2 Ohms Yes 8Ω 4 x 650 W 4Ω 4 x 1100 W 2Ω 4 x 1870 W 16Ω Bridged 2 x 1300 W 8Ω Bridged 2 x 2200 W 4Ω Bridged 2 x 3740 W Input Connectors 4 x XLR Socket Output Connectors 4 x 4 Pole Speaker Connector Mode Switch Mono / Bridge / Clip Hi-Z Yes 70V Hi-Z 4 x 1100 W Slew Rate >50 V / us Output RMS Voltage (V) 72.1 V Maximum input Level 21 dBu (8.7 Vrms) Default Gain (Rated power, 1 kHz) (dB) 35 dB Gain (Rated Power, 1 kHz) 41 / 38 / 35 / 32 dB THD N Typical : 0.05% (10% Rated Power, 8 Ω) Crosstalk ≥90 dB (20 Hz-1 kHz, Below Rated Power, 8 Ω) Amplifier Frequency Response Typical : 0,-0.5 dB (10% Rated Power, 20 Hz-20 kHz, 8 Ω) Amplifier Input Impedance 20 kΩ (Balanced), 10 kΩ (Unbalanced) Damping Factor ≥1000 (20 Hz-200 Hz, 8 Ω) SNR ≥105 dB (Default Gain, A Weighted, 20 Hz-20 kHz, 8 Ω) Protection Power under-voltage protection, Amplifier output DC protection, Thermal Protection, Temperature Power Control, Overload Power Control Main Power 90~260 V AC,50/60 Hz Included Accessory User Manual Unpacked – Height (mm) 45 Unpacked – Width Front (mm) 483 Unpacked – Width Rear (mm) 483 Unpacked – Depth (mm) 376 Packed – Height (mm) 125 Packed – Width Front (mm) 510 Packed – Width Rear (mm) 510 Packed – Depth (mm) 565 Weight – Nett (Kg) 9.1 Weight – Gross (Kg) 10.6 DP-4065 – Wharfedale Pro
