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Power amplifiers stereo — Soulnote A-3core
Description, images, technical data and specifications
Soulnote A-3core
Image source — © Soulnote
The A-3core is a stereo power amplifier from Soulnote, a Japanese manufacturer known for considered digital and analogue electronics engineering, built with an extraordinarily wide bandwidth. The A-3core brings Soulnote's approach to two-channel power amplification.
Key specs that matter
Input impedance is 24,000 ohms balanced. Output power is 2 x 120W into 4 ohms. Frequency response spans an extraordinary 2Hz to 200,000Hz within plus-or-minus 3dB - a remarkable bandwidth extending far beyond conventional audible range. Total harmonic distortion plus noise is 0.27% with full global feedback, a figure reflecting Soulnote's specific circuit-design choices. At 454 x 189 x 435mm and 29kg, the A-3core represents a substantial stereo amplifier commitment.
Sound and use context
Expect substantial power delivery combined with an extraordinarily wide bandwidth suggesting careful attention to both low-frequency extension and high-frequency transient speed alike, consistent with Soulnote's considered engineering philosophy.
Pairing
The substantial 120W-per-channel output into 4 ohms suits a wide range of loudspeaker impedances, and Soulnote's own sa1.0 preamplifier shares the brand's coherent engineering philosophy.
Alternatives
Soulnote's broader amplifier catalogue offers alternatives for buyers wanting a different power output within the same considered Japanese engineering philosophy.
Key specs that matter
Input impedance is 24,000 ohms balanced. Output power is 2 x 120W into 4 ohms. Frequency response spans an extraordinary 2Hz to 200,000Hz within plus-or-minus 3dB - a remarkable bandwidth extending far beyond conventional audible range. Total harmonic distortion plus noise is 0.27% with full global feedback, a figure reflecting Soulnote's specific circuit-design choices. At 454 x 189 x 435mm and 29kg, the A-3core represents a substantial stereo amplifier commitment.
Sound and use context
Expect substantial power delivery combined with an extraordinarily wide bandwidth suggesting careful attention to both low-frequency extension and high-frequency transient speed alike, consistent with Soulnote's considered engineering philosophy.
Pairing
The substantial 120W-per-channel output into 4 ohms suits a wide range of loudspeaker impedances, and Soulnote's own sa1.0 preamplifier shares the brand's coherent engineering philosophy.
Alternatives
Soulnote's broader amplifier catalogue offers alternatives for buyers wanting a different power output within the same considered Japanese engineering philosophy.
Specifications
Model name
A-3core
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
24000
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
N/A
Output power (4Ω) (W)
2 x 120
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
2
Frequency response high +/- 3dB (Hz)
200000
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
0.27
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
454 × 189 × 435
Weight (kg)
29
Official link