The Pioneer Exclusive M4 is a high-end stereo power amplifier made in Japan by Pioneer, produced from 1974 to 1980 as part of Pioneer's prestigious Exclusive series, the company's flagship high-fidelity line. It delivers 50 watts per channel into 8 ohms in pure Class A operation, prized for the smooth, natural, and highly refined sound that Class A amplification is renowned for. The amplifier uses a pure-complementary OCL (output capacitor-less) circuit with a single-stage differential input and a two-stage Darlington quadruple push-pull output stage, achieving low distortion and excellent linearity. Built to the exacting standards of the Exclusive range, it features a heavy, rigid chassis, a substantial power supply with a large transformer, and extensive heat sinking to handle the constant high heat of Class A operation. Robust speaker terminals and a clean, understated front panel complete the design. Combining the musicality of pure Class A with Pioneer's finest engineering, the Exclusive M4 remains a highly sought-after vintage power amplifier among audiophiles and collectors who appreciate classic Japanese high-end audio.
・Power Supply Voltage: AC 100V, 50/60 Hz
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All import duties and taxes for shipments to the United States are fully covered by us, so there will be no additional charges for the buyer. However, for items priced over $2,500, shipments will be handled under DDU (Delivered Duty Unpaid) as before.