The Strumento N°1 Signature Preamplifier delivers unparalleled acoustic truth by meticulously refining each aspect of sound reproduction. With advancements that enhance naturalness and immersion, it exemplifies the pinnacle of audio engineering.
The Strumento N°1 Signature employs a proprietary Class A current-feedback gain stage, optimizing signal fidelity by ensuring constant impedance and minimizing distortion during dynamic changes in volume. The advanced power architecture features multiple toroidal transformers isolated from interference, coupled with an ultra-low noise power supply that maintains stability while offering lightning-fast signal transmission. This meticulous design process incorporates high-end components strategically positioned to preserve sonic purity, ensuring a bandwidth exceeding 1MHz and an impressive slew rate, which collectively contribute to truly authentic sound recreation.
Key Features
-
Constant Impedance Volume Control: Uses discrete low-noise metallic film resistors and relays to maintain consistent impedance, enhancing frequency response and stability.
-
High-Precision Gain Adjustment: Provides a gain range of 127 dB in precise 0.5 dB steps, ensuring accurate volume control without noise artifacts.
-
Custom Class A Gain Stage: The proprietary circuit design minimizes distortion and maximizes transient response for unparalleled signal integrity.
-
Sophisticated Power Supply: Features multiple toroidal transformers with EMI shielding, ensuring absolute isolation and exceptional noise management.
-
High-Quality Components: Utilizes top-tier parts including Mundorf capacitors and Vishay ZFoil resistors for superior audio performance.
-
Gold-Plated Contacts: Ensures lasting connectivity and reduces signal degradation over time, maintaining performance stability.
Technical Specifications
- Signal Bandwidth: > 1 MHz
- Frequency Response: 3 Hz to 1 MHz (-3dB)
- Slew Rate: > 250 V/µs
- Gain Range: 127 dB
- Volume Step Resolution: 0.5 dB
- Capacitor Count: 40 (680µF, 100V)
- Transformer Specs: Two 75VA, One 25VA, One 15VA