UESUGI UTY-7

Pre owned. In good condition. Shows signs of wear. Without original packaging.

The UESUGI UTY‑7 tube phono equalizer from Uesugi Laboratory is a handcrafted, meticulously designed device engineered to deliver high-level performance for vinyl enthusiasts. It features a dual-chassis design where the amplification and power supply sections are completely isolated, a configuration that significantly improves the signal-to-noise ratio and reduces interference from AC magnetic fields. The left and right channels are perfectly symmetrical, ensuring excellent tonal balance across both channels.

The UTY‑7 is often cited as a historical reference: introduced in the early 1990s, it is considered a rare and highly regarded unit. Although long out of production, it continues to enjoy a solid reputation for the purity of its tone and its musicality.

Every detail of the construction is carefully executed, with internal components — resistors, capacitors, and wiring — selected for audio quality rather than cost reduction. The circuit design follows a three-stage “NF” topology, combining negative feedback (NFB) with feed-forward to ensure stability and musicality. The power supply section uses a classic π filter and measures to block line disturbances and high-frequency noise. Internal wiring avoids PCB traces, favoring hand-wired connections (lug plate wiring) to preserve signal integrity.

Technically, the UTY‑7 offers two phono inputs, precise RIAA equalization, and high gain to excellently drive both MC and MM cartridges. Its separated design (amplification vs. power supply) provides exceptional stability and immunity to interference, a valuable quality in demanding hi-fi systems. The UTY‑7 exemplifies Japanese audio craftsmanship, combining elegance, precision, and musical passion, remaining highly sought after by collectors and audiophiles today.

Technical Specifications:

• Type: tube phono equalizer amplifier
• Input impedance: 2 mV / 47 kΩ; Output impedance: 250 mV / 600 Ω
• Gain: 43 dB; Equivalent input noise / Signal-to-noise ratio: -121 dB
• Power supply: AC 100 V 50/60 Hz
• Weight: 6.0 kg (main unit); 7.0 kg (power supply)
• Dimensions: W 17.0 x H 12.2 x D 33.0 cm (main unit and power supply)