PS Audio PMG Signature Preamplifier Offers an Incredibly Low Noise Level
04.08.2025 07:41 | ~1 minute read
PS Audio has started selling the previously announced precision preamplifier PS Audio PMG Signature Preamplifier – the frequency response of the model is within 5 – 500000 Hz (-3dB), the noise floor does not exceed -145 dB, THD+N is declared less than 0.0003%, IMD is 0.0005%, and Crosstalk is -135 dB!
Created by Darren Myers and named after the company's co-founder Paul McGowan, the PMG Signature Preamplifier rethinks not only the circuit design to achieve reference sound, but also has a very interesting design (rounded milled aluminum front panel, capacitive touch screen).
The PS Audio PMG Signature Preamplifier is based on a two-section architecture that separates the power and control circuits from the analog signal path. The path itself is balanced with zero feedback and Diamond buffers operating in pure Class A. The amplification stages use a hybrid topology combining FET transistors with BJTs. The power supply is built on film capacitors instead of electrolytics. The PS Audio PMG Signature preamplifier is available for sale at prices of $8,499 or €9,995.
Specifications
This product is in the Hi-Fi and High End Electronics and Acoustics database
Preamplifiers — PS Audio PMG Signature Preamplifier
Model name
PMG Signature Preamplifier
Analog inputs (balanced)
4
Analog inputs (single-ended)
2
Analog outputs (balanced)
2
Analog outputs (single-ended)
2
Gain (dBu)
12.6
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)
100
Output impedance (single-ended) (Ω)
100
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)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (SNR, unweighted) (dB)
N/A
Total Harmonic Distortion + Noise (THD+N) (%)
<0.0003
Dimensions (mm)
444.5 x 101.6 x 368.3
Weight (kg)
15.4
Official link
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