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Soulution 727 Preamplifier

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The Soulution 727 Preamplifier represents a masterwork in analog signal conditioning, engineered to preserve the subtlest musical nuances with extraordinary precision. Its revolutionary input architecture employs parallelized instrumentation amplifiers operating at 20MHz bandwidth with noise density below -160dBV/√Hz, delivering common mode rejection exceeding 105dB—critical for capturing the faintest details in your vinyl collection. The 80-step channel-specific volume control utilizes precision metal foil resistors, while an optional MC phono stage with adjustable gain and impedance ensures perfect cartridge matching and flawless RIAA curve adherence. The output stage's low impedance and high peak current capability effortlessly drive extended cable runs without signal degradation. A sophisticated distributed power architecture combines efficient switching conversion with localized linear regulation, minimizing noise while maintaining short signal paths. The result: a three-dimensional soundstage with exceptional clarity, natural timbral accuracy, and minimal phase distortion across the entire audio spectrum.


Specifications

Mains 220 – 240V (50 – 60 Hz)100 – 120V (50 – 60 Hz)
Power consumption < 1W standby60W device in operation
Inputs 3 × balanced (XLR)2 × unbalanced (RCA)1 × Phono (optional)
Input impedance 4.4MΩ balanced (XLR)4.4MΩ unbalanced(RCA)10 – 1000Ω or 47kΩ phono (adjustable)
Input voltage max. 9Vpp
Outputs 2 × balanced (XLR)1 × unbalanced (RCA)
Output impedance 0.8Ω balanced (XLR)0.4Ω unbalanced (RCA)
Output voltage max 14Vpp balanced (XLR)7Vpp unbalanced (RCA)
Output current max. 0.5A limited by protection circuit
Frequency response (– 3 dB) DC - 20MHz
Phaseshift (@20kHz) < 0.2°
Signal-to-noise ratio (20Hz – 20kHz @1Vrms) >120dB
Noise density (input related) < -160dBV/sqrt(Hz)
THD+N <-120dB
Common mode rejection ratio >105dB
Channel separation >130dB
Gain +4dB balanced (XLR)-2dB unbalanced (RCA)+44dB to +84dB (phono)
Volume control range 0 to – 79 dB in 1 dB steps
Dimensions 480mm x 450mm x 167mm
Weight 28kg

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