PIONEER H-Z1 MC HEAD AMPLIFIER UNPRECEDENTED SUPER LINEAR CIRCUIT RARE

PIONEER H-Z1 MC HEAD AMPLIFIER UNPRECEDENTED SUPER LINEAR CIRCUIT RARE

Condition: Used

Description

Up for sale is the PIONEER H-Z1 MC Head Amplifier, a truly unique and impressive piece of audio equipment. This unit is part of Pioneer's "Artistic Sound Series" and represents their pursuit of "zero transmission error" and "improving raw characteristics" in amplifier design.

The H-Z1 features a "No Feedback/Super Linear Circuit" design, which eschews traditional Negative Feedback (NFB) to achieve superior fundamental performance. Instead of relying on peripheral technologies like NFB or servo circuits, Pioneer focused on perfecting the core performance. This approach was developed to overcome the limitations associated with NFB, such as time delays, high-frequency instability, and TIM distortion, which could negatively impact sound quality.

Key Features and Design:

・Unprecedented/MC Head Amplifier: Designed specifically for MC cartridges.

・No Feedback/Super Linear Circuit: A core design philosophy focusing on raw performance.

・Massive Component Design: Packed with specially developed parts for exceptional audio reproduction.

・Non-magnetic Aluminum Alloy Casing: Ensures no magnetic distortion.

・Glass Top Panel: A distinctive design element.

・Large/Heavyweight Build: Indicates substantial internal components. Dimensions: Width: 15cm / Height: 20cm / Depth: 40cm / Weight: 8kg.

・Gain Switching: 32dB / 22dB.

・Load Resistance (Impedance) Switching: 10 / 47 / 100 / 470Ω.

・Custom Parts: Utilizes custom-developed parts where individual component quality significantly impacts sound.

・Large Toroidal Transformer: Features a balanced winding for the power supply.

・This unit is in good working condition and has been fully tested.

・Please note that, as is common with this model, the lettering on the rear panel is faded. This has been reflected in the pricing.

・The front panel lettering is in good condition.

・The glass top panel is intact.

Maintenance Performed:

・Thorough external cleaning.

・Input/output terminals have been meticulously cleaned using specialized tools.

・The unit has undergone a unique de-magnetization process utilizing 9 de-magnetizing signals, inspired by Sheffield Lab's Burn-in and De-Magnetized Signals. This process neutralizes residual magnetism in components like the step-up transformer, enhancing sound quality by removing magnetic distortion. The treatment was carefully calibrated to a phono level to avoid damaging the unit, and it possesses a frequency response similar to inverse RIAA equalization for optimal de-magnetization without negative effects.

Historical Context:

The H-Z1 was released around the time of Pioneer's MC cartridges (PC-70MC / PC-50MC), during the golden age of analog audio in the 1980s. It was part of a trio of amplifiers in the "Artistic Sound Series," alongside the C-Z1 preamp and M-Z1 monaural power amplifier, all sharing the common concept of the "No Feedback/Super Linear Circuit." This period saw a surge in MC cartridge popularity, with many legendary models emerging from various manufacturers.

Expert Acclaim:

The H-Z1 received exceptional reviews in audio magazines and was highly praised by the renowned audio critic Mr. Tetsuo Nagaoka, who called it "the best MC booster." It stands as a reference standard for MC cartridge playback, offering a different sonic world compared to conventional step-up transformers.

Note:

Please confirm that the dimensions and weight are suitable for your environment before purchasing. This is a large and heavy unit.

This H-Z1 offers a rare opportunity to own a piece of audio history renowned for its exceptional performance and unique design philosophy. It is ready for immediate and comfortable use.

Only the items shown in the photos are included.

Item Details

• Brand: Pioneer
• Country of Origin: Japan
• Customized: Unknown

Ships from Japan. Actual availability is confirmed after your order. Items may also be listed or sourced through other marketplaces. If an item becomes unavailable, your order will be promptly cancelled and refunded.

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