English
Preamplifier Soulution 525 Preamplifier
Description
The soulution 525 is a technical masterpiece designed to unite source components with power amplifiers while maintaining absolute signal accuracy and channel integrity. Drawing heavily from the architecture of the flagship 725, this preamplifier adheres to a strict "add nothing, take nothing away" philosophy. It features a revolutionary 95-step volume control that combines relay-switched, top-tier Vishay Dale fixed resistors with seamless adjustments, completely eliminating audible switching clicks. Engineered as a strict dual-mono component, the analogue circuits and their dedicated power supplies for the left and right channels are physically isolated and decoupled via multi-stage filter networks to achieve infinite channel separation. The ultra-wideband output stage operates with a 2 MHz bandwidth, generating sufficient current to drive even the longest signal cables without phase errors or level drops. Powered by a robust, high-specification switched-mode power supply backed by over 400,000 μF of storage capacitance and ultra-low-noise linear regulation, the soulution 525 presents a perfectly focused, holographic soundstage of pure audiophile transparency.
Specification
| Input impedance | 10 Ω symetrická (XLR), 10 Ω nesymetrická (RCA) |
|---|---|
| Power consumption | < 0,5 W v pohotovostnom režime (standby) / 100 W prístroj v prevádzke |
| Inputs | 2 × symetrický (XLR), 2 × nesymetrický (RCA) |
| Outputs | 1 × symetrický (XLR), 1 × nesymetrický (RCA) |
| Output Voltage | 16 VRMS symetrické (XLR), 8 VRMS nesymetrické (RCA) |
| Transmission range (±3 dB) | 0 – 2 MHz |
| Signal-to-noise ratio | 120 dB |
| Channel separation | 130 dB @ 1 kHz |
| Dimensions (W × H × D) | 442 × 143 × 448 mm |
| Mains Supply | 220 – 240 V (50 – 60 Hz) / 100 – 120 V (50 – 60 Hz) |
| THD + N | < 0.00009% (20 Hz – 20 kHz) |
| Output current max | 0,2 A (limitovaný) |
| LINK (remote turn-on) | 12 V riadiaci signál |
| Volume control range | + 15 dB 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