SOUL NOTE E-1

The SOULNOTE E-1 phono equalizer, available in elegant Platinum Silver and Black finishes, represents an enhancement of the legendary ph1.0 Phono Equalizer. This advanced model has been designed to explore the limitless possibilities of analog recordings, maintaining the purity and sonic balance that define the brand. Its main feature is the adoption of perfectly balanced and discrete circuits, free from negative feedback (non-NFB), which ensures exceptional transient response, extending the high frequency range indefinitely without compromising sound quality. This design makes the E-1 particularly advantageous for analog sources, which have no range limitations, improving transparency, clarity, and sonic realism.

The E-1 circuit leverages and refines that of the ph1.0, integrating RIAA elements into the voltage amplification circuit. In this way, the RIAA gain characteristic becomes an intrinsic aspect of the circuit, allowing consistent quality across the entire frequency range above 100 kHz. This approach eliminates the typical issues of CR and NF circuits, which have limitations in dynamic range or volume variations depending on frequency. CR components, such as MELF capacitors with 1% precision and polypropylene film capacitors with 2% precision, ensure perfect curves and optimal performance.

Regarding the input, the E-1 is fully compatible with balanced cartridges. The rear panel includes an operation selector and XLR terminals for balanced inputs, ensuring that the amplifier functions as a non-NFB phono equalizer, perfectly balanced from input to output. This configuration enables the creation of an immersive, three-dimensional soundscape, with details that resonate deeply with the listener. The operation selector also allows for the use of balanced RCA inputs, but it is recommended to always use shielded two-core XLR cables for the best sound quality.

The E-1 also offers several practical functions, such as the load impedance selection (LOAD selector) for the MC input, with options ranging from 1,000 ohms to 3 ohms. The MM function allows for the use of MM cartridges and MC step-up transformers. Additionally, the subsonic filter (LOW CUT) reduces woofer movement caused by record distortions, improving the listening experience. The strong balanced output, achieved through a non-NFB buffer amplifier, can drive speakers, while unbalanced outputs are available via the HOT balanced output.

The power supply of the E-1 is managed by a 260 VA toroidal transformer, identical to the one used in the A-1 integrated amplifier, with Darlington filters, fast recovery diodes, and ten 1,000 μF capacitors in parallel, creating a feedback-free power supply that imparts an infinite sense of sonic lightness to the device.

Regarding mechanical construction, the E-1 uses a direct grounding system, with spikes connected to the center of gravity of the transformer, allowing harmful vibrations to be expelled directly without affecting the device’s chassis. This approach contributes to lively musical reproduction and a high signal-to-noise ratio. Moreover, metal isolators, chosen instead of traditional plastic isolators, are now used as standard, as they further enhance sound quality, especially under load.

Technical Specifications:

• Input Sensitivity: MC: 0.5mV / MM: 5mV
• Load Resistance: MC: 3ohm, 10ohm, 30ohm, 100ohm, 300ohm, 1kohm / MM: 47kohm
• Gain: MC: 70dB / MM: 50dB
• Rated Output: Balanced: 2.8V / Unbalanced: 1.4V
• RIAA Deviation: ±0.3dB
• Power Voltage: 230V AC 50Hz
• Power Consumption: 48W
• Maximum External Dimensions: Main Unit: 430(W) × 109(H) × 409(D)mm
• Weight: 9.5kg
• Included Accessories: Spikes, Power Cord