Soulution Audio 326 preamplifier
Image source — © Soulution Audio
Model name
326 preamplifier
Analog inputs (balanced)
2
Analog inputs (single-ended)
2 + 1 (Phono)
Analog outputs (balanced)
1
Analog outputs (single-ended)
1
Gain (dBu)
N/A
Input sensitivity (mV)
N/A
Output voltage (V)
N/A
Input impedance (balanced) (Ω)
5800
Input impedance (single-ended) (Ω)
4900
Output impedance (balanced) (Ω)
10
Output impedance (single-ended) (Ω)
5
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
Frequency response high +/- 3dB (Hz)
2 000 000
Signal to Noise Ratio (SNR, unweighted) (dB)
N/A
Total Harmonic Distortion + Noise (THD+N) (%)
< 0.0001
Dimensions (mm)
430 x 350 x 142
Weight (kg)
10
Official link
The Soulution 525 preamp owes much to the design of the top-end Soulution 725 preamp. It uses the same volume control, which ingeniously combines the smooth fingertip control of variable resistors with the precision and stability of fixed-resistor circuits.
The innovative input stage of the 727 preamp provides exceptional common-mode signal suppression without compromising the input stage due to noise. This is achieved using parallel instrument amplifiers designed for a wide bandwidth (20 MHz), the lowest noise level (noise density < -160 dBV/√Hz) and optimal common-mode signal suppression (CMMR >105 dB). This ensures that even the weakest musical signals are correctly received by the 727 preamp.