Preamplifiers — Audio Research LS28SE
Description, images, technical data and specifications
Audio Research LS28SE
Image source — © Audio Research
The LS28SE differs from its predecessor by more precise synchronization of the amplification stages and higher precision of the signal settings. The preamp is an improved version of the LS28 model from the same manufacturer. The new model differs from the standard version with improved elements and proven technologies. For example, gold capacitors were used in the preamp, as in the REF6SE model.
Specifications
Model name
LS28SE
Analog inputs (balanced)
4
Analog inputs (single-ended)
4
Analog outputs (balanced)
3
Analog outputs (single-ended)
2
Gain (dBu)
18.5
Input sensitivity (mV)
N/A
Output voltage (V)
N/A
Input impedance (balanced) (Ω)
100 000
Input impedance (single-ended) (Ω)
50 000
Output impedance (balanced) (Ω)
600
Output impedance (single-ended) (Ω)
300
Maximum output level (balanced) (dBu)
N/A
Maximum output level (single-ended) (dBu)
N/A
Volume control range (dBu)
N/A
Frequency response low +/- 3dB (Hz)
0.4
Frequency response high +/- 3dB (Hz)
200 000
Signal to Noise Ratio (SNR, unweighted) (dB)
N/A
Total Harmonic Distortion + Noise (THD+N) (%)
<0.007%
Dimensions (mm)
480 × 137 × 348
Weight (kg)
7.2
Official link
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