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Preamplifier Soulution 727 Preamplifier
Description
The soulution 727 redefines the boundaries of reference preamplification, setting unprecedented global benchmarks for noise suppression, phase accuracy, and ultra-low distortion. Its innovative input stage utilizes parallelized instrumentation amplifiers with a 20 MHz bandwidth to achieve a staggering common-mode rejection ratio (CMRR >105 dB), capturing the faintest musical nuances with absolute purity. Volume regulation is executed via a dual-path architecture: an uncompromising network of relay-switched, high-precision metal foil resistors provides an 80-step adjustment, while a secondary IC-based circuit engages temporarily during adjustments to eliminate clicks and voltage peaks. The Class-A output stage is optimized for extreme speed and high peak currents, effortlessly driving long cable runs while maintaining a 20 MHz bandwidth for an expansive, lifelike three-dimensional soundstage. An optional ultra-low-noise Phono MC stage offers comprehensive adjustments from +40 dB to +80 dB. Powered by a cutting-edge, dual-mono distributed local power supply utilizing high-speed linear regulators directly at the current sinks, the soulution 727 guarantees an uncompromised, profoundly musical signal transmission.
Specification
| Input impedance | 0.8 Ω symetrická (XLR), 0.4 Ω nesymetrická (RCA) |
|---|---|
| Power consumption | < 1 W v pohotovostnom režime (standby) / 60 W prístroj v prevádzke |
| Inputs | 3 × symetrický (XLR), 2 × nesymetrický (RCA), 1 × Phono (voliteľný) |
| Outputs | 2 × symetrický (XLR), 1 × nesymetrický (RCA) |
| Dimensions | 480 mm x 450 mm x 167 mm |
| Gain | +4 dB symetrický (XLR) / -2 dB nesymetrický (RCA) / +44 dB až +84 dB (phono) |
| Transmission range (±3 dB) | DC - 20 MHz |
| Output maximum voltage | 14 Vpp symetrické (XLR), 7 Vpp nesymetrické (RCA) |
| Channel separation | > 130 dB |
| Mains Supply | 220–240 V (50–60 Hz) / 100–120 V (50–60 Hz) |
| Output current max | 0,5 A limitovaný ochranným obvodom |
| Phase shift @ 20kHz | < 0,2° |
| Volume control range | 0 až –79 dB v krokoch po 1 dB |
Soulution
Soulution Audio: Swiss Precision, Uncompromising Speed, and Absolute Transparency
Swiss manufacturer Soulution Audio represents the pinnacle of ultra-high-end audio engineering. The brand was founded in Dulliken, Switzerland, by Cyrill Hammer and Roland Manz, managing directors of Spemot—a renowned Swiss precision engineering firm specialized in electric motors and custom electronics. Driven by a passion for music and a desire to transcend the limitations of existing reference equipment, they set out to create audio electronics characterized by extreme speed, surgical accuracy, infinite dynamic scaling, and zero tonal coloration.
Leveraging Swiss manufacturing expertise alongside an elite team of engineers, Soulution officially launched its reference line of amplifiers, preamplifiers, and digital sources around 2005–2006. Soulution components incorporate ultra-fast circuit topologies, massive power supplies, and uncompromising current control, allowing loudspeakers to reveal the subtle micro-details of a recording with effortless naturalness. Hand-built in Switzerland to exacting standards, Soulution products are designed for audiophiles who demand absolute sonic truth, uncompromised signal purity, and sovereign speaker control. At Dream Audio, we proudly feature Soulution Audio as an benchmark of Swiss acoustic perfection and ultimate fidelity.
Manufacturer information (GPSR)
Manufacturer
Spemot AG
Industriestrasse 70, CH-4657 Dulliken Switzerland
info@soulution-audio.com
Responsible person in the EU
DreamAudio, spol. s r. o.
Jaskový rad 213A 83101, Bratislava-Nové Mesto
info@dreamaudio.sk