AMG STA vs Bryston 3B-ST
The 3B-ST's power @ 8ω is 120W against the AMG STA's 130W, its signal-to-noise 106 dB against 100 dB, and its thd 0.007% against 0.006%. Both share power @ 4ω (200W).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower Amplifiers
Estimated price (community-sourced)
$1,750
Around — community and catalog average, updates slowly
About the AMG STA
The NuPrime AMG STA is a compact high-performance stereo power amplifier that can also be bridged to mono operation. It is known for its very high input impedance, low distortion, wide bandwidth, and strong current delivery, using NuPrime’s Class A input stage with a switching/Class D power section. It is a current-production model based on the available manufacturer listings and manuals.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 130W @ 8Ω
- Power @ 4Ω
- 200W @ 4Ω
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 1.2V RMS
- Input Impedance
- 100000Ω
Analog Output
Analog signal output specifications
- THD
- 0.006%
- SNR
- 100 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA, XLR
- Analog Outputs
- Speaker binding posts
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 235 × 55 × 285 mm (W × H × D)
- Weight
- 4 kg (9 lbs)
Key Specifications
Power: 130W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions