Unison Research Simply 845

The Unison Research Simply 845 embodies the essence of acoustic truth through its advanced engineering and design. By utilizing direct-heated triodes and meticulously crafted components, it delivers an authentic sound reproduction that captures the original performance.

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The Simply 845 leverages pure class A amplification for both preamplifier and power output stages, fundamentally influencing audio fidelity. This design involves single-ended topology, allowing for a more linear signal path and reducing crossover distortion. The output transformers, uniquely custom-wound by hand, utilize thin laminations of iron and silicon optimized for minimal magnetic losses, enhancing frequency response and lowering harmonic distortion. The integration of specifically chosen capacitors, constructed with polypropylene dielectrics, minimizes inductive effects and maintains the signal integrity. Furthermore, its printed circuit boards employ thick electrolytic copper traces, ensuring superior current handling and overall electrical performance.

Key Features

• Direct-Heated Triodes: The use of 845 tubes enhances durability and sonic clarity, resulting in a rich, dynamic audio experience.
• Handcrafted Transformers: Custom-designed output transformers optimize magnetic field interaction, minimizing distortion and extending frequency range.
• Pure Class A Operation: Ensures linear amplification without crossover distortion, preserving audio fidelity across all stages of signal processing.
• High-Quality Capacitors: Anti-inductive capacitors with polypropylene dielectrics maintain signal integrity by reducing parasitic effects.
• Robust PCB Design: Thick copper traces and fiberglass backing improve current flow and decrease electrical noise.
• Motorized Volume Control: The RK27 potentiometer offers precise sound adjustment, crucial for high-quality listening environments.

Technical Specifications

• Type: Integrated Valve Amplifier
• Valves: 2 x 845 Selected, 2 x ECC 82 / 12AU7 Selected
• Class: Class A
• Output stage topology: Single-ended
• Maximum Power: 23W
• Bandwidth: 20Hz-50kHz, +0dB -1dB @ 12W
• Feedback Level: 14 dB
• Output impedance: 6 Ohm
• Input impedance: 47 Kohm / 100 pF
• Input: 4 line level
• Outputs: 1 Tape, 1 Subwoofer
• Power Consumption: 300VA
• Sizes: 37 cm x 26 cm x 57 cm (L x H x D)
• Weight: 30.5 kg - 67 lbs
• Main Fuses: 5x20mm – 6.3 A at 100V-120V

We ship via specialized freight carriers who understand the value of your investment. Your equipment arrives fully insured and ready to integrate into your system. Delivery typically occurs within 5-7 business days.

Due to the precise nature of high-end acoustic equipment, returns are accepted within 14 days of delivery. Items must be in flawless, factory-new condition and in their original packaging. Please note that unsealed equipment is subject to a restocking fee, and return freight is the responsibility of the buyer.