Eversolo AMP-F8 Class AB Stereo Power Amplifier

The Eversolo AMP-F8 is a high-performance Class AB stereo power amplifier designed to combine substantial speaker-driving capability with low noise and distortion. Delivering 180W RMS per channel into 8 ohms or 280W RMS per channel into 4 ohms, it can also operate in bridged mode to provide 500W RMS into 8 ohms.

At the heart of the AMP-F8 is a custom 800W toroidal linear power supply and a Class AB amplification architecture using three pairs of precision-matched high-current MOSFETs per channel. Dual differential amplification, symmetrical circuitry and precision negative feedback help suppress common-mode noise and interference, while 24 custom audio-grade filter capacitors support clean, responsive current delivery during demanding musical passages.

Features:

• Powerful Class AB Amplification - Delivers 180W RMS per channel into 8 ohms and 280W RMS per channel into 4 ohms in stereo mode.
• 500W Bridged Operation - Bridged mode provides up to 500W RMS into 8 ohms for systems requiring additional output capability.
• Low Distortion - THD+N of 0.003% at 1 kHz helps preserve detail and minimize unwanted coloration.
• 115 dB Signal-to-Noise Ratio - A-weighted SNR of at least 115 dB provides a low-noise background for subtle musical detail.
• Damping Factor Over 400 - High damping factor helps maintain precise control over connected speaker drivers, particularly during demanding low-frequency passages.
• 800W Toroidal Linear Power Supply - Custom high-capacity power supply provides stable energy to the left and right amplifier channels.
• DC Blocking Circuit - Helps suppress the effects of DC offset in the AC mains on the toroidal transformer, reducing potential mechanical vibration and noise interference.
• Dual Differential Amplification - Symmetrical circuitry and precision negative feedback help suppress common-mode noise and external interference while maintaining signal linearity.
• Parallel MOSFET Architecture - Three pairs of precision-matched high-current MOSFETs per channel help distribute current evenly and maintain linearity across different speaker loads.
• 24 Audio-Grade Filter Capacitors - Large filter capacitor array helps reduce power-supply ripple while providing ample current for dynamic peaks.
• Balanced & Unbalanced Inputs - XLR balanced and RCA unbalanced connections provide compatibility with a wide range of preamplifiers, DACs and source components.
• Selectable Gain - Supports 23 dB and 29 dB gain configurations with corresponding XLR and RCA input sensitivities.
• Analog VU Meters - Front-panel VU meters move in real time with the music for a classic visual indication of signal level.
• CNC-Machined Aluminum Chassis - High-grade aluminum construction helps suppress physical resonance, dissipate heat and provide electromagnetic shielding.
• Premium Speaker Terminals - Rigorously tested terminals provide secure speaker connections.
• Optimized Thermal Design - Internal layout and aluminum construction support stable thermal performance during extended listening and high-output playback.

Specifications:

General:

• Model: AMP-F8
• Product Type: Stereo Power Amplifier
• Operating Mode: Class AB

Acoustic Performance:

• Signal-to-Noise Ratio: ≥115 dB (A-Weighted)
• Damping Factor: >400 @ 8 Ohms, 1 kHz
• Frequency Response: 10 Hz - 30 kHz (+/- 0.5 dB, @ 1W / 8 Ohms)
• Channel Crosstalk: ≤-95 dB (180W @ 8 Ohms / 1 kHz)
• THD+N: 0.003% @ 1 kHz

Continuous Output Power:

• Stereo Mode, 8 Ohms: 180W RMS Per Channel
• Stereo Mode, 4 Ohms: 280W RMS Per Channel
• Bridged Mode, 8 Ohms: 500W RMS

Inputs & Sensitivity:

• Balanced Input: 1 x XLR
• Unbalanced Input: 1 x RCA
• XLR Input Impedance: 10 kOhms
• RCA Input Impedance: 10 kOhms
• XLR Input Sensitivity: 5.2V at 23 dB Gain / 2.6V at 29 dB Gain (180W @ 8 Ohms / 1 kHz)
• RCA Input Sensitivity: 2.65V at 23 dB Gain / 1.3V at 29 dB Gain (180W @ 8 Ohms / 1 kHz)

Power:

• Power Requirement: 100V-120V, 60 Hz / 220V-240V, 50 Hz
• Maximum Power Consumption: 1200W

Dimensions & Weight:

• Width: 10.43" (265 mm / 26.5 cm)
• Depth: 15.28" (388 mm / 38.8 cm)
• Height: 4.69" (119 mm / 11.9 cm)
• Net Weight: 35.05 lb (15.9 kg)
• Gross Weight: 41.01 lb (18.6 kg)

What's in the Box:

• Eversolo AMP-F8 Stereo Power Amplifier
• Power Cable
• Trigger Cable
• User Manual