Eversolo AMP-F8 Class AB Power Amplifier
Bring greater authority, control, and transparency to a high-performance two-channel audio system with the Eversolo AMP-F8 Class AB Power Amplifier. Engineered for demanding loudspeakers and serious Hi-Fi listening, the AMP-F8 delivers 180 watts per channel into 8 ohms, 280 watts per channel into 4 ohms, and up to 500 watts into 8 ohms in bridged mode. Its custom 800W toroidal linear power supply, precision-matched MOSFET output stage, dual-differential amplification architecture, and substantial energy reserves help produce powerful dynamics while maintaining a quiet, composed sonic background.
With THD+N as low as 0.003%, a signal-to-noise ratio of at least 115 dB, and a damping factor greater than 400, the AMP-F8 is designed to reveal fine musical detail while maintaining firm control over large woofers and complex speaker loads. Balanced XLR and unbalanced RCA connectivity make integration easy with a wide range of preamplifiers, DACs, and source components, while selectable 23 dB and 29 dB gain settings provide additional system-matching flexibility.
Inside, three pairs of precision-matched high-current MOSFET devices per channel operate in parallel to promote consistent current delivery and excellent linearity. A bank of 24 custom audio-grade filter capacitors supports fast transient current response, while an integrated DC blocking circuit helps reduce transformer vibration and unwanted power-related noise. The CNC-machined aluminum chassis, natural convection cooling, dual analog VU meters, automatic standby options, and comprehensive protection circuitry complete an amplifier designed for powerful, refined, and dependable long-term listening.
Specifications
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Product Type: High-fidelity stereo power amplifier
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Amplifier Architecture: Class AB
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Stereo Output Power at 8 Ohms: 180W RMS per channel
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Stereo Output Power at 4 Ohms: 280W RMS per channel
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Bridged Output Power at 8 Ohms: 500W RMS
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4-Ohm Bridged Operation: Not supported
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THD+N: 0.003% at 1 kHz
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Signal-to-Noise Ratio: ≥115 dB, A-weighted
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Frequency Response: 10 Hz to 30 kHz, ±0.5 dB at 1W/8 ohms
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Damping Factor: Greater than 400 at 8 ohms/1 kHz
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Crosstalk: ≤ -95 dB at 180W/8 ohms/1 kHz
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Input Types: Balanced XLR and unbalanced RCA inputs
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Channel Inputs: Individual XLR and RCA input connections for left and right channels
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Input Selection: Independent RCA/XLR input mode selectors for the left and right channels
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XLR Input Impedance: 10 kOhms
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RCA Input Impedance: 10 kOhms
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Gain Settings: Selectable 23 dB or 29 dB
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XLR Input Sensitivity at 23 dB Gain: 5.2V for 180W at 8 ohms/1 kHz
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XLR Input Sensitivity at 29 dB Gain: 2.6V for 180W at 8 ohms/1 kHz
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RCA Input Sensitivity at 23 dB Gain: 2.65V for 180W at 8 ohms/1 kHz
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RCA Input Sensitivity at 29 dB Gain: 1.3V for 180W at 8 ohms/1 kHz
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Operating Modes: Stereo and bridged operation
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Power Supply: Custom 800W high-power toroidal linear power supply
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Power Supply Design: Independent left- and right-channel power delivery designed to reduce inter-channel interaction
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Filter Capacitors: 24 custom audio-grade filter capacitors
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DC Blocking: Integrated DC blocking circuit designed to reduce the effects of AC mains DC offset on the toroidal transformer
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Low-Level Amplification: Dual differential amplification architecture with symmetrical circuitry and precision negative feedback
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Output Devices: Three pairs of precision-matched high-current MOSFET power devices per channel
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MOSFET Configuration: Parallel output architecture for more even current distribution and improved linearity
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Speaker Outputs: Dedicated left- and right-channel speaker output terminals
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Ground Connection: Dedicated grounding terminal
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Trigger Control: 5-12V trigger input support
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Signal-Sensing Standby: Automatically enters standby after approximately 20 minutes without a sufficient audio signal and powers back on when a signal is detected
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Standby Modes: Trigger mode and signal-sensing mode
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Front Standby Control: Front-panel standby button
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Status Indicator: Dual-color LED ring
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Status Indicator Colors: White for active operation, orange for standby, and alternating orange/white for protection mode
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VU Meters: Dual analog VU meters with real-time level indication
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VU Meter Backlight: Rear-panel on/off control
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Protection Circuits: Over-current, over-temperature, and short-circuit protection
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Cooling: Natural convection cooling with an optimized internal layout
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Chassis: Precision CNC-machined unibody aluminum construction
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Chassis Finish: Anodized, sandblasted finish
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Chassis Benefits: Designed to suppress physical resonance while supporting heat dissipation and electromagnetic shielding
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AC Voltage Selector: 115V/230V selector
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Power Requirements: 100-120V AC, 60 Hz or 220-240V AC, 50 Hz
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Maximum Power Consumption: 1200W
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AC Connection: AC inlet socket with main power switch and fuse protection
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Dimensions: 265 × 388 × 119 mm (W × D × H)
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Net Weight: 15.9 kg
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Gross Weight: 18.6 kg
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Included Accessories: 1 power cord, 1 trigger cable, and 1 user manual
What It's Great At
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Driving Demanding Loudspeakers: High current capability and up to 280W per channel into 4 ohms provide substantial reserves for large floorstanding speakers and challenging loads.
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Delivering Tight, Controlled Bass: A damping factor greater than 400 helps control woofer movement for cleaner bass definition, faster transients, and greater impact.
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Preserving Fine Musical Detail: Low 0.003% THD+N and a ≥115 dB signal-to-noise ratio support a quiet background with excellent resolution of vocals, instruments, and spatial information.
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Handling Wide Dynamic Swings: The 800W toroidal power supply and 24-capacitor filter array provide strong transient energy for demanding musical peaks.
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Flexible Hi-Fi System Integration: XLR and RCA inputs, dual gain settings, stereo operation, and 500W bridged operation make the AMP-F8 adaptable to a variety of premium audio systems.
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Long Listening Sessions: A rigid aluminum chassis, natural convection cooling, and integrated protection systems help maintain stable performance during extended use.
FAQ Section
Q: How much power does the Eversolo AMP-F8 produce?
A: In stereo mode, the AMP-F8 delivers 180W RMS per channel into 8 ohms and 280W RMS per channel into 4 ohms. In bridged mode, it can deliver 500W RMS into an 8-ohm load.
Q: Can the AMP-F8 be used in bridged mode?
A: Yes. The amplifier supports 500W RMS into 8 ohms when bridged, but 4-ohm bridged operation is not supported.
Q: Does the AMP-F8 have balanced XLR inputs?
A: Yes. The AMP-F8 provides balanced XLR and unbalanced RCA connectivity for compatibility with a wide range of preamplifiers, DACs, and source components.
Q: What gain settings are available?
A: The AMP-F8 offers selectable 23 dB and 29 dB gain settings, allowing it to be matched more effectively with different source output levels and system configurations.
Q: What makes the AMP-F8 effective with large speakers?
A: Its high-current Class AB design, substantial power reserves, three pairs of parallel MOSFET output devices per channel, and damping factor greater than 400 provide strong speaker control even with demanding loads.
Q: What type of power supply does the AMP-F8 use?
A: It uses a custom 800W toroidal linear power supply supported by 24 custom audio-grade filter capacitors and an integrated DC blocking circuit for stable, low-noise power delivery.
Q: Does the AMP-F8 support automatic standby?
A: Yes. In signal-sensing mode, it can enter standby after approximately 20 minutes without a sufficient audio signal and automatically power back on when a signal is detected. It also supports 5-12V trigger control.
Q: What protection features are built into the AMP-F8?
A: The amplifier includes over-current, over-temperature, and short-circuit protection, with its front LED indicator providing a visual indication if the unit enters protection mode.
