Denon PMA-1560 (1990–1994)
A high-end integrated amplifier from Denon’s early 1990s lineup, featuring Optical Class A technology and balanced inputs.
Overview
The Denon PMA-1560 is a stereo integrated amplifier produced from 1990 to 1994, positioned as a top-tier model in Denon’s high-fidelity audio range. Marketed under names such as "Mos Super Optical Class A High End Integrated Amplifier," it emphasized advanced circuitry and premium build quality. The amplifier delivers 150 watts per channel into 8 ohms and includes a phono input configurable for both MM and MC cartridges, making it a versatile choice for analog enthusiasts. It also features a balanced XLR input, preamp outputs, and tone controls, offering both flexibility and signal path customization.
Design
The PMA-1560 employs Denon’s "Optical Class" technology, specifically labeled as "Mos Super Optical Class A," suggesting a design focused on minimizing signal degradation and maximizing linearity in the amplification stage. This approach was part of Denon’s effort to achieve high-end performance through innovative topology rather than sheer power output.
Specifications
The amplifier measures 434 mm (W) × 185 mm (H) × 438 mm (D) and has a power consumption of 400 W. Its frequency response spans 20 Hz to 20 kHz, and it provides line-level output at 150 mV and preamp output at 1 V. The unit includes a balanced XLR input, phono input (MM/MC), and preamp output, supporting a wide range of source and system configurations.
Market
The Denon PMA-1560 remains a collectible model among vintage audio enthusiasts, with service and owner’s manuals still available and original units often sold with documentation. A dedicated capacitor repair kit is offered on eBay for C $109.16, indicating ongoing support for restoration. Units are typically found in excellent used condition, reflecting the robust build and longevity of Denon’s high-end designs from this era.
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