GFA-545II vs Emotiva UPA-200
The UPA-200's power @ 8ω is 125W against the GFA-545II's 100W, its power @ 4ω 200W against 150W, its signal-to-noise 92 dB against 110 dB, and its thd 0.030% against 0.040%.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$200
Around — community and catalog average, updates slowly
About the GFA-545II
The Adcom GFA 545II is a solid-state stereo power amplifier delivering 100 watts per channel into 8 ohms and 150 watts per channel into 4 ohms, with both channels driven. It is praised for its excellent low-frequency control, clear mids, and overall reliability. The amplifier features a simple, no-frills design with robust construction, making it a favorite among vintage audio enthusiasts. While it is not the most refined amplifier in its class, it offers substantial power and dynamic performance, especially for demanding speakers. The GFA 545II is over 25 years old but remains highly regarded for its durability and straightforward operation.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 100W @ 8Ω
- Power @ 4Ω
- 150W @ 4Ω
- Amplifier Class
- AB
- Damping Factor
- >400
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 1.3V RMS
Analog Output
Analog signal output specifications
- THD
- 0.040%
- SNR
- 110 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA
- Analog Outputs
- binding posts
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 432 × 127 × 279 mm (W × H × D)
- Weight
- 11 kg (24 lbs)
Key Specifications
Power: 100W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions