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Power amplifiers stereo — Line Magnetic Audio AS-128PP
Description, images, technical data and specifications
Line Magnetic Audio AS-128PP
Image source - (c) Line Magnetic Audio
The Line Magnetic AS-128PP is a stereo power amp with a rating of 2 x 120 W into 8 ohms. It is a heavy, full-width unit intended to drive a pair of loudspeakers from a separate preamplifier or source with its own volume control.
Key specs that matter
Input sensitivity is 500 mV and the single-ended input impedance is 100 kOhm, an easy load for most preamplifiers. Gain can be switched between two settings, listed as 51 and 63. The frequency response runs from 10 Hz to 70 kHz at -3 dB. The S/N figure is 88 dB, and THD plus noise is 1 percent with global feedback applied.
Engineering and use context
The chassis measures 480 x 280 x 530 mm and weighs 80 kg, so it needs a solid, low shelf or floor placement and two people to move it. The switchable gain helps match the amplifier to sources and preamplifiers with different output levels.
Key specs that matter
Input sensitivity is 500 mV and the single-ended input impedance is 100 kOhm, an easy load for most preamplifiers. Gain can be switched between two settings, listed as 51 and 63. The frequency response runs from 10 Hz to 70 kHz at -3 dB. The S/N figure is 88 dB, and THD plus noise is 1 percent with global feedback applied.
Engineering and use context
The chassis measures 480 x 280 x 530 mm and weighs 80 kg, so it needs a solid, low shelf or floor placement and two people to move it. The switchable gain helps match the amplifier to sources and preamplifiers with different output levels.
Specifications
Model name
AS-128PP
Input sensitivity (mV)
500
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
100 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
2 x 120
Output power (4Ω) (W)
N/A
Gain (dBu)
51 / 63
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
70 000
Signal to Noise Ratio (dB)
88
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
1
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
480 x 280 x 530
Weight (kg)
80
Official link
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