soulution 727 preamplifier
Best reference-grade preamplifier for uncompromising high-end audio enthusiasts.
Experience unparalleled audio fidelity with the soulution 727 preamplifier, a reference-grade component engineered to set new benchmarks in sound reproduction. It meticulously minimizes noise, distortion, and phase errors through an innovative input stage and a sophisticated power supply. The 727 offers seamless, click-free volume control and an optional, highly adaptable phono stage for vinyl enthusiasts. Its Class-A output stage ensures exceptional speed and spatial accuracy across a wide frequency bandwidth, delivering a pure and immersive listening experience.
$79975.00
Owner Satisfaction
4.8
/ 5
Category Rank
5
/ 58
#5 in Audio Amplifiers
Price vs Category Average
+414%
Above average
Frequency Response
203
/ DC - MHz (- dB)
Who it's for
- Audiophiles seeking absolute sonic purity and lightning-fast transient response
- Listeners demanding effortless power for complex, dynamic musical passages
- Collectors valuing heirloom-grade construction and superior mechanical isolation
Who should skip it
- Budget-conscious music lovers seeking high-end performance at accessible prices
- Owners of entry-level components that may reveal unwanted system flaws
- Users preferring local, quick-turnaround repair options for their audio gear
Performance breakdown
Signal Purity
Ultra-low noise floor ensures the music emerges from absolute silence.
Transient Speed
Class-A output stage delivers lightning-fast response to complex musical dynamics.
Volume Precision
Relay-based control provides seamless, click-free adjustments at any listening level.
Phono Versatility
Highly adaptable stage accommodates a vast range of high-end cartridges.
Build Integrity
Substantial chassis construction effectively isolates sensitive components from external interference.
Frequency Extension
Remarkable bandwidth captures every nuance from deep bass to ultrasonic detail.
Key Specs
Frequency Response
DC - 20MHz (-3 dB)
Noise Density (Input Related)
< -160dBV/sqrt(Hz)
Common Mode Rejection Ratio
>105dB
THD+N
< -120dB
Dimensions
480mm x 450mm x 167mm
Weight
28kg
Input Impedance
4.4MΩ (Balanced/Unbalanced)
Gain
+4dB balanced (XLR), +44dB to +84dB (phono optional)
Features
- Reference-grade audio reproduction
- Ultra-low noise floor
- Click-free relay volume control
- Optional adaptable phono stage
- Wide frequency bandwidth
- Class-A output stage
- Balanced and unbalanced connections
- Sophisticated power supply design
What customers say
The Soulution 727 preamplifier is widely regarded as the pinnacle of solid-state design, earning awe for its technical prowess and sonic transparency. Owners consistently praise its ability to deliver an unnervingly silent background, allowing music to emerge with dynamic realism and lightning fast transient response. Its uncolored neutrality ensures effortless detail retrieval, making it a benchmark for absolute accuracy. The construction is robust and reference grade, supported by sophisticated power technology that guarantees sonic stability. While the high cost is a factor, those who invest in the 727 view it as the ultimate component for long term fidelity, confirming its status as a statement piece in high end audio.
Know before you buy
The 727 utilizes a relay-based volume control system designed to be completely click-free. This ensures precise, transparent adjustments without introducing the mechanical noise or signal degradation often found in traditional potentiometers.
The 727 features an optional, highly adaptable phono stage that can be added to the unit. It is designed to handle a wide range of cartridges with adjustable gain settings from +44dB to +84dB.
The Class-A output stage provides exceptional speed and linearity, which results in a highly accurate, natural sound. By operating in this mode, the 727 maintains signal integrity and spatial precision across its entire frequency bandwidth.
Yes, the 727 is equipped with both balanced (XLR) and unbalanced (RCA) inputs and outputs. This allows for flexible integration into a variety of high-end audio systems regardless of your preferred connection type.
The exceptionally high input impedance of 4.4MΩ ensures that the preamplifier does not load down the source component. This allows the source to operate at its peak performance, preserving the delicate micro-details and dynamics of your music.
The 727 is a substantial component, weighing 28kg and measuring 480mm x 450mm x 167mm. You should ensure your equipment rack or shelf is rated to support this weight and provides adequate clearance for proper ventilation.
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$79975