{"product_id":"pioneer-m-73-spec-stereo-power-amplifier-85-85w-rms-vintage-1980-work-good-look","title":"PIONEER M 73 SPEC Stereo Power Amplifier  85+85W RMS Vintage 1980 Work Good Look","description":"\u003cp\u003e\u003cb\u003ePioneer M-73 Stereo Power Amplifier (1980) – Fully Restored – Worldwide Voltage 100–240V – Vintage Hi-Fi\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThe Pioneer M-73 is one of the rarest Japanese Domestic Market (JDM) power amplifiers ever produced by Pioneer. Introduced around 1980, it was designed as the companion power amplifier for the Pioneer C-73 preamplifier and F-73 tuner, creating the legendary “Baby SPEC” series inspired by the famous SPEC components. With its elegant brushed aluminum front panel, illuminated analog power meters and professional rack handles, the M-73 has become a highly sought-after collector’s amplifier.  \u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eDelivering 85 Watts per channel into 8 Ohms, the M-73 features a fully discrete direct-coupled complementary push-pull output stage powered by two independent power transformers, one for each channel. This dual-mono-inspired architecture minimizes channel interaction and provides excellent stereo separation, dynamic performance and outstanding reliability.  \u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003e* Power Output: 85 W + 85 W RMS (8 \u003c\/b\u003e\u003cb\u003eΩ\u003c\/b\u003e\u003cb\u003e, 20 Hz–20 kHz)\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Frequency Response: 5 Hz – 100 kHz (+0 \/ -1 dB)\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Total Harmonic Distortion: 0.05%\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Signal-to-Noise Ratio: 115 dB\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Input Sensitivity: 1 V \/ 50 k\u003c\/b\u003e\u003cb\u003eΩ\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Damping Factor: 30\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Speaker Impedance:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e    * A or B: 4–16 \u003c\/b\u003e\u003cb\u003eΩ\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e    * A+B: 8–16 \u003c\/b\u003e\u003cb\u003eΩ\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Power Consumption: 210 W (650 W max.)\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Dimensions: 480 × 142 × 390 mm\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e* Weight: 15.2 kg.  \u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThis particular amplifier has been professionally restored and carefully inspected by our specialized vintage audio technicians. Every function has been tested to ensure stable operation, proper channel balance, clean output and long-term reliability. The illuminated analog VU meters operate beautifully and perfectly complement the timeless Pioneer industrial design.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThis unit has been professionally modified by our specialized technical service to operate worldwide. The original Japanese 100 V power supply has been converted to a universal multi-voltage power supply compatible with 100 \/ 110 \/ 120 \/ 220 \/ 230 \/ 240 Volts AC (50\/60 Hz), allowing safe operation anywhere in the world without requiring an external transformer.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThe amplifier retains its original Japanese aesthetics while offering exceptional sound quality characterized by excellent bass control, smooth midrange, detailed highs and remarkable musicality. Whether paired with vintage Pioneer, JBL, Yamaha, Tannoy or modern high-end loudspeakers, the M-73 delivers an engaging and authoritative listening experience.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eCosmetically, the amplifier remains in excellent vintage condition, showing only minimal signs of careful use consistent with its age. Please examine all photographs carefully, as they form part of the description and accurately represent the item you will receive.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eThis is an increasingly difficult amplifier to find, especially in fully serviced condition and upgraded for worldwide voltage. It represents an outstanding opportunity for collectors, audiophiles and enthusiasts looking to complete a Pioneer Baby SPEC system with the matching C-73 preamplifier and F-73 tuner.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eNote\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eAt TechnoGold Audio \u0026amp; Vintage, we have specialized in high-end vintage audio equipment for more than 40 years. Every component is professionally inspected, serviced and tested by experienced technicians before shipment. We use premium packing materials and custom protection to ensure maximum safety during transport, and we ship worldwide using trusted carriers such as FedEx, UPS and DHL. Buy with complete confidence from one of Europe’s leading vintage audio specialists.\u003c\/b\u003e\u003c\/p\u003e","brand":"Pioneer","offers":[{"title":"Default Title","offer_id":54583594647894,"sku":"EB-236933263548","price":1850.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/0359\/3814\/files\/57_52af95ef-57ed-4f3b-863a-09738fc6e5d0.jpg?v=1784287456","url":"https:\/\/www.audiovintageshop.com\/en\/products\/pioneer-m-73-spec-stereo-power-amplifier-85-85w-rms-vintage-1980-work-good-look","provider":"TechnoGold Audio \u0026 Vintage","version":"1.0","type":"link"}