STA-9 vs Audiolab 8300XP
The 8300XP's power @ 8ω is 140W against the STA-9's 120W, its power @ 4ω 230W against 120W, its signal-to-noise 113 dB against 95 dB, and its damping factor >100 against >400.
AI-generated product photo — not official manufacturer imagery.
STA-9
NuPrimeAmplifiersPower Amplifiers
Estimated price (community-sourced)
$550 - $899
Around — community and catalog average, updates slowly
About the STA-9
The NuPrime STA-9 is a compact, bridgeable stereo/mono power amplifier featuring a unique Class A input stage combined with a high-efficiency Class D output section. Derived from the ULCAM design in the IDA-8, it employs enhanced even-order harmonic (H2) circuitry to mimic tube amplifier sound characteristics, providing rich, warm harmonics, exceptional transient speed, and clarity. It supports both balanced XLR and unbalanced RCA inputs, with a switch for stereo or mono operation. The amplifier uses a 550kHz switching frequency, a linear power supply with toroidal transformer, and vibration-damping isolation feet for optimal performance. Ideal for bi-amping, stereo systems, or demanding low-impedance speakers, it offers wide bandwidth up to 50kHz for detailed highs and tight bass.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 120W @ 8Ω
- Power @ 4Ω
- 120W @ 4Ω
- Damping Factor
- >400
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 0.2V RMS
- Input Impedance
- 47000Ω
Analog Output
Analog signal output specifications
- THD
- 0.020%
- SNR
- 95 dB
- Output Impedance
- 0.02Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA, XLR
- Analog Outputs
- banana/spade binding posts
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 235 × 55 × 281 mm (W × H × D)
- Weight
- 4 kg (9 lbs)
Key Specifications
Power: 120W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions