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Integrated amplifiers — SMSL AL400
Description, images, technical data and specifications
SMSL AL400
Image source — © SMSL
The AL400 is an integrated amplifier with built-in DAC from SMSL, a Chinese manufacturer known for delivering exceptional measured performance at accessible prices, built into a remarkably compact chassis. The AL400 brings SMSL's considered engineering to a space-efficient integrated format.
Key specs that matter
One single-ended input is provided. Output power is a substantial 85W into 8 ohms, rising to 165W into 4 ohms - impressive figures for such a compact chassis. Signal-to-noise ratio is 101dB, with total harmonic distortion plus noise at an exceptionally low 0.003% - an impressive figure for the accessible price point. At a remarkably compact 254 x 45 x 210mm and just 1.7kg, the AL400 maintains a space-efficient integrated amplifier chassis.
Sound and use context
Expect surprisingly clean, powerful amplification reflecting the exceptionally low 0.003% distortion figure combined with the substantial 165W-into-4-ohms output, representing exceptional value packed into this remarkably compact lightweight chassis.
Pairing
The substantial 165W into 4 ohms output from such a compact chassis suits a wide variety of loudspeaker loads.
Alternatives
SMSL's own AS400 offers a related model with an added phono stage within the same broader catalogue.
Key specs that matter
One single-ended input is provided. Output power is a substantial 85W into 8 ohms, rising to 165W into 4 ohms - impressive figures for such a compact chassis. Signal-to-noise ratio is 101dB, with total harmonic distortion plus noise at an exceptionally low 0.003% - an impressive figure for the accessible price point. At a remarkably compact 254 x 45 x 210mm and just 1.7kg, the AL400 maintains a space-efficient integrated amplifier chassis.
Sound and use context
Expect surprisingly clean, powerful amplification reflecting the exceptionally low 0.003% distortion figure combined with the substantial 165W-into-4-ohms output, representing exceptional value packed into this remarkably compact lightweight chassis.
Pairing
The substantial 165W into 4 ohms output from such a compact chassis suits a wide variety of loudspeaker loads.
Alternatives
SMSL's own AS400 offers a related model with an added phono stage within the same broader catalogue.
Specifications
Model name
AL400
Type
Integrated Amplifier with DAC
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
1
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
Yes
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
85
Output power (4Ω) (W)
165
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
101
Total Harmonic Distortion + Noise (%)
0.003
Damping factor
N/A
Dimensions (mm)
254 × 45 × 210
Weight (kg)
1.7
Official link
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