About this product:Engineered to Open Up New Sonic Dimensions: Flagship Yamaha M-5000 Power Amplifier Features Floating and Balanced Circuit Design, Streamlined Build, Gorgeous LooksIts not everyday you come across a power amplifier with genuinely groundbreaking technology. Then again, few components tout the obsessive build, aural integrity, and straight-line focus of the Yamaha M-5000. Taking the companys innovative Floating and Balanced concept, expanding it to a separate, and refining it with exceptional topology, the flagship unit strives for and opens up new sonic dimensions all the while driving speakers with a grip, authority, and accuracy that will have you hanging on the edge of your seat. The riveting outcome of three years of development, M-5000 was perfected by a dedicated team of six engineers.Diverging from pure complementary circuit design, the go-to approach in hi-fi amplifiers for the past four-plus decades, Yamahas Floating and Balanced method uses output elements of the same polarity on the plus and minus sides of the output stage – and wholly separates the negative-feedback circuit and power supply into a total of four plus and minus sides of the left and right channels. The result: A thoroughly symmetric push-pull operation of the output stage. Completely floating the the entire power-amplifier circuit from the electrical ground also eliminates any negative impact of minute voltage fluctuations and ground noise. In addition, the technique simplifies the signal path in that the number of parts required for the circuitry for each channel gets reduced, leading to reproduction marked by added freshness and liveliness. MOSFET output elements in parallel also mean enhanced low-impedance drive capability.M-5000 also benefits from a cutting-edge approach to its build. The amplifiers rigid streamlined construction means the entire chassis has a dual inner/outer structure and an original structure housing three blocks – two power amplifier units and the power supply unit, each supported by independent base frame. Such architecture achieves omnidirectional blocking of unwanted vibration as well as wiring with shortest-distance transmission from the power transformer to the power amplifier, and from the latter to the speaker output terminal of both the power supply and the audio signal. Custom-made block capacitors and enhanced contact points between the aluminum foil affecting the internal impedance and the wiring tabs – as well as screw connections using brass screws and brass lug for the main wiring in the large current path – further attest to M-5000s spare-no-expenses schematics and reference-grade quality.Indeed, to attain sublime bass reproduction and thrillingly open sound even at extremely high volume levels, M-5000 applies the concept of Mechanical Grounding to the heavy internal parts subject to vibration – while still retaining perfect left/right weight balance. The solution, patent-pending brass feet with a screw-in structure distinguished with separate upper and lower sections, provides both pinpoint support and protection. It further fosters expressive, expansive musical reproduction distinguished with a rich, powerful low end. And Yamaha ensured every screw was given the same tightening torque, a process not unlike that involved with crafting a prized instrument – a title M-5000 certainly deserves. For additional proof, just consider the massive 1200VA toroidal transformer with minimal flux leakage and excellent conversion efficiency for brute strength. Direct drawing of the internal winding and direct connection of the circuit with a brass lug terminal yield a power supply absent signal loss. A hand-selected brass base plate between the bottom of the transformer and the inner chassis completes the array.Speaking of hand-picked beauty, what to make of the illuminated, warm, high-precision level meters (switchable between VU and park display) and piano-finish wood side panels other than to affirm that they belong as the centerpiece in a room? The same can be said for the 0.35-inch-thick aluminum front panel and 0.24-inch-thick aluminum top panel, which also features a heat sink with a five-line musical staff motif. Protection for those meters comes in the form of a rectangular, .031-inch-thick, crystal glass window sporting a tapered cut at the upper and lower ends.Balanced input terminals with phase inverters, speaker terminals cut from solid brass, trigger terminals, and the ability to use M-5000 as a mono amplifier further place the 60-pound marvel on its own pedestal.Its the kind of product that invites you to just settle in to a very unfiltered, unforced experience. Refined. Carefully judged by people who obviously care.– Allan Moulton, The Absolute Sound, Golden Ear AwardBoth the C-5000 preamp and M-5000 power amplifier show Japanese engineering ingenuity and construction quality at its very best. Yes, the feature list looks impressive in a brochure, but the technology used has a direct bearing on the ultimate sound quality of both amps here. The result is typically sublime, with Yamahas longstanding Natural Sound moniker rarely feeling more appropriate.– Adam Smith, Hi-Fi+, Highly Commended review SKU:UTRA0001297 Warranty: This unit comes with a 30 day Music Direct warranty. Whats Included:Accessories: power cable, system cable, manual, and safety info, original packing Notes: 9/10 Condition with no signs of damage or abuse. All functions tested successfully, sonically perfect. Specifications:Input Terminal: RCA: 1, BAL: 1, TRIGGER IN: 1Output Terminal: TRIGGER OUT: 1Rated Output Power: 100 W + 100 W (8 ohm, 20 Hz-20 kHz, 0.07% THD, 2-channel driven) 200 W + 200 W (4 ohm, 20 Hz-20 kHz, 0.07% THD, 2-channel driven) 400 W (8 ohm, 20 Hz-20 kHz, 0.07% THD, Monaural driven)Dynamic Power Per Channel: 125 W + 125 W (8 ohm) 170 W + 170 W (6 ohm) 250 W + 250 W (4 ohm) 500 W + 500 W (2 ohm)Dynamic Headroom: 0.97 dB (8 ohm)Maximum Output Power: 220 W + 220 W (4 ohm, 1 kHz, 0.7% THD)IEC Output Power: 125 W + 125 W (8 ohm, 1 kHz, 0.02% THD)Maximum Effective Output Power: 135 W + 135 W (8 ohm) 270 W + 270 W (4 ohm)Power Bandwidth: 10 Hz-50 kHz (8 ohm, 0.1% THD, 45 W)Damping Factor: 300 or higher (8 ohm, 1 kHz)Input Sensitivity / Input Impedance: BAL: 2.0 Vrms / 47 kohm LINE: 1.0 Vrms / 47 kohm [1 kHz 100 W / 8 ohm conversion]Maximum Input Signal Voltage: BAL: 2.20 Vrms [1 kHz, 0.5% THD] LINE: 1.10 Vrms [1 kHz, 0.5% THD]Frequency Response: +0 dB / -3 dB (5 Hz-100 kHz) +0 dB / -0.3 dB (20 Hz-20 kHz)Total Harmonic Distortion Plus Noise: 2-channel driven: 0.035% (LINE [BAL] to SP Out, 20 Hz-20 kHz, 50 W, 8 ohms) Monaural driven: 0.05% (LINE [BAL] to SP Out, 20 Hz-20 kHz, 200 W, 8 ohms)Channnel Separation: 90 dB or higher (1 kHz, Input 1.0 kohm Terminated) 70 dB or higher (10 kHz, Input 1.0 kohm Terminated)Signal-to-Noise Ratio: [IHF-A network, Input 1 kohm shorted] 110 dBResidual Noise: BAL: 40 uVrms LINE: 50 uVrmsMeter Class: The 2.5th classPower Consumption: 400 WStandby Power Consumption: Off Mode: 0.1 W, Standby Mode: 0.2 WMaximum Power Consumption: 800 WPower Management (Auto Power Standby): YesDimension (WHD): 17-1/8 x 7-1/8 x 18-1/4Weight: 59.3 lbs. Shipping Policy:If you require shipping to Alaska, Hawaii, or Puerto Rico, please contact us first before making an offer.

About this product:Engineered to Open Up New Sonic Dimensions: Flagship Yamaha M-5000 Power Amplifier Features Floating and Balanced Circuit Design, Streamlined Build, Gorgeous LooksIts not everyday you come across a power amplifier with genuinely groundbreaking technology. Then again, few components tout the obsessive build, aural integrity, and straight-line focus of the Yamaha M-5000. Taking the companys innovative Floating and Balanced concept, expanding it to a separate, and refining it with exceptional topology, the flagship unit strives for and opens up new sonic dimensions all the while driving speakers with a grip, authority, and accuracy that will have you hanging on the edge of your seat. The riveting outcome of three years of development, M-5000 was perfected by a dedicated team of six engineers.Diverging from pure complementary circuit design, the go-to approach in hi-fi amplifiers for the past four-plus decades, Yamahas Floating and Balanced method uses output elements of the same polarity on the plus and minus sides of the output stage – and wholly separates the negative-feedback circuit and power supply into a total of four plus and minus sides of the left and right channels. The result: A thoroughly symmetric push-pull operation of the output stage. Completely floating the the entire power-amplifier circuit from the electrical ground also eliminates any negative impact of minute voltage fluctuations and ground noise. In addition, the technique simplifies the signal path in that the number of parts required for the circuitry for each channel gets reduced, leading to reproduction marked by added freshness and liveliness. MOSFET output elements in parallel also mean enhanced low-impedance drive capability.M-5000 also benefits from a cutting-edge approach to its build. The amplifiers rigid streamlined construction means the entire chassis has a dual inner/outer structure and an original structure housing three blocks – two power amplifier units and the power supply unit, each supported by independent base frame. Such architecture achieves omnidirectional blocking of unwanted vibration as well as wiring with shortest-distance transmission from the power transformer to the power amplifier, and from the latter to the speaker output terminal of both the power supply and the audio signal. Custom-made block capacitors and enhanced contact points between the aluminum foil affecting the internal impedance and the wiring tabs – as well as screw connections using brass screws and brass lug for the main wiring in the large current path – further attest to M-5000s spare-no-expenses schematics and reference-grade quality.Indeed, to attain sublime bass reproduction and thrillingly open sound even at extremely high volume levels, M-5000 applies the concept of Mechanical Grounding to the heavy internal parts subject to vibration – while still retaining perfect left/right weight balance. The solution, patent-pending brass feet with a screw-in structure distinguished with separate upper and lower sections, provides both pinpoint support and protection. It further fosters expressive, expansive musical reproduction distinguished with a rich, powerful low end. And Yamaha ensured every screw was given the same tightening torque, a process not unlike that involved with crafting a prized instrument – a title M-5000 certainly deserves. For additional proof, just consider the massive 1200VA toroidal transformer with minimal flux leakage and excellent conversion efficiency for brute strength. Direct drawing of the internal winding and direct connection of the circuit with a brass lug terminal yield a power supply absent signal loss. A hand-selected brass base plate between the bottom of the transformer and the inner chassis completes the array.Speaking of hand-picked beauty, what to make of the illuminated, warm, high-precision level meters (switchable between VU and park display) and piano-finish wood side panels other than to affirm that they belong as the centerpiece in a room? The same can be said for the 0.35-inch-thick aluminum front panel and 0.24-inch-thick aluminum top panel, which also features a heat sink with a five-line musical staff motif. Protection for those meters comes in the form of a rectangular, .031-inch-thick, crystal glass window sporting a tapered cut at the upper and lower ends.Balanced input terminals with phase inverters, speaker terminals cut from solid brass, trigger terminals, and the ability to use M-5000 as a mono amplifier further place the 60-pound marvel on its own pedestal.Its the kind of product that invites you to just settle in to a very unfiltered, unforced experience. Refined. Carefully judged by people who obviously care.– Allan Moulton, The Absolute Sound, Golden Ear AwardBoth the C-5000 preamp and M-5000 power amplifier show Japanese engineering ingenuity and construction quality at its very best. Yes, the feature list looks impressive in a brochure, but the technology used has a direct bearing on the ultimate sound quality of both amps here. The result is typically sublime, with Yamahas longstanding Natural Sound moniker rarely feeling more appropriate.– Adam Smith, Hi-Fi+, Highly Commended review SKU:UTRA0001297 Warranty: This unit comes with a 30 day Music Direct warranty. Whats Included:Accessories: power cable, system cable, manual, and safety info, original packing Notes: 9/10 Condition with no signs of damage or abuse. All functions tested successfully, sonically perfect. Specifications:Input Terminal: RCA: 1, BAL: 1, TRIGGER IN: 1Output Terminal: TRIGGER OUT: 1Rated Output Power: 100 W + 100 W (8 ohm, 20 Hz-20 kHz, 0.07% THD, 2-channel driven) 200 W + 200 W (4 ohm, 20 Hz-20 kHz, 0.07% THD, 2-channel driven) 400 W (8 ohm, 20 Hz-20 kHz, 0.07% THD, Monaural driven)Dynamic Power Per Channel: 125 W + 125 W (8 ohm) 170 W + 170 W (6 ohm) 250 W + 250 W (4 ohm) 500 W + 500 W (2 ohm)Dynamic Headroom: 0.97 dB (8 ohm)Maximum Output Power: 220 W + 220 W (4 ohm, 1 kHz, 0.7% THD)IEC Output Power: 125 W + 125 W (8 ohm, 1 kHz, 0.02% THD)Maximum Effective Output Power: 135 W + 135 W (8 ohm) 270 W + 270 W (4 ohm)Power Bandwidth: 10 Hz-50 kHz (8 ohm, 0.1% THD, 45 W)Damping Factor: 300 or higher (8 ohm, 1 kHz)Input Sensitivity / Input Impedance: BAL: 2.0 Vrms / 47 kohm LINE: 1.0 Vrms / 47 kohm [1 kHz 100 W / 8 ohm conversion]Maximum Input Signal Voltage: BAL: 2.20 Vrms [1 kHz, 0.5% THD] LINE: 1.10 Vrms [1 kHz, 0.5% THD]Frequency Response: +0 dB / -3 dB (5 Hz-100 kHz) +0 dB / -0.3 dB (20 Hz-20 kHz)Total Harmonic Distortion Plus Noise: 2-channel driven: 0.035% (LINE [BAL] to SP Out, 20 Hz-20 kHz, 50 W, 8 ohms) Monaural driven: 0.05% (LINE [BAL] to SP Out, 20 Hz-20 kHz, 200 W, 8 ohms)Channnel Separation: 90 dB or higher (1 kHz, Input 1.0 kohm Terminated) 70 dB or higher (10 kHz, Input 1.0 kohm Terminated)Signal-to-Noise Ratio: [IHF-A network, Input 1 kohm shorted] 110 dBResidual Noise: BAL: 40 uVrms LINE: 50 uVrmsMeter Class: The 2.5th classPower Consumption: 400 WStandby Power Consumption: Off Mode: 0.1 W, Standby Mode: 0.2 WMaximum Power Consumption: 800 WPower Management (Auto Power Standby): YesDimension (WHD): 17-1/8 x 7-1/8 x 18-1/4Weight: 59.3 lbs. Shipping Policy:If you require shipping to Alaska, Hawaii, or Puerto Rico, please contact us first before making an offer.

Very nice Yamaha C-50 preamp with matching Yamaha M 50 amplifier. Both units sound fantastic. There are numerous scratches on both units and a little ding on top of the preamp case but doesn’t affect its functioning. Please view photos for a better idea of condition. Shipping price is for lower 48 states. Each unit will be packaged and shipped separately.

Very nice Yamaha C-50 preamp with matching Yamaha M 50 amplifier. Both units sound fantastic. There are numerous scratches on both units and a little ding on top of the preamp case but doesn’t affect its functioning. Please view photos for a better idea of condition. Shipping price is for lower 48 states. Each unit will be packaged and shipped separately.

This is a one owner Yamaha M-50 stereo power amplifier. It comes from an estate sale. Its physical appearance is near mint, almost new looking. Is being sold as is, non-working as it stays in protection mode. I could not locate voltage specs on line to set the DC offset and bias to hopefully get it to come out of protection. May be an easy fix. Priced accordingly. Accompanying C-50 pre-amp will be placed in a separate listing. I will ship within 2 business days of your payment. Shipping to lower 48 states only. Will be carefully packed to insure safe arrival condition.

Das Gerät wird ausdrücklich als defekt beziehungsweise Ersatzteil verkauft. Nur bieten wer damit einverstanden ist. Falls Sie ein Problem mit der Ware haben nach dem Kauf können Sie sich telefonisch oder per Nachricht bei mir melden . Wir finden bestimmt eine Lösung die für beide Seiten optimal ist . Daher bitte vor der Abgabe einer Bewertung bei einem Problemen sich melden. Bilder sind Bestandteil der Artikelbeschreibung. Lieferumfang siehe Bilder. Die Versandkosten beinhalten zudem das Verpackungsmaterial (bitte beachten). BEARBEITUNGSZEIT EINES PAKETES KANN BIS ZU 4 WERKTAGE BETRAGEN!!! Wer mit den Versandkosten nicht einverstanden ist, muss das Gerät nicht kaufen. Wenn Sie ein Problem mit der Ware haben können Sie mich anschreiben und wir finden bestimmt eine optimale Lösung. Wen ein Gerät im Artikelzustand als Ersatzteil/Defekt eingestellt wird , wird es auch ausdrücklich als Ersatzteil beziehungsweise defekt verkauft, daher auch bei ungetesteter Ware , kein funktionsfähiges Gerät erwarten . Versandkosten fürs Ausland bitte Nachfragen. Die Ware unterliegt der Differenzbesteuerung nach UStG. §25a, eine Ausweisung der MwSt. ist nicht möglich.

Das Gerät wird ausdrücklich als defekt beziehungsweise Ersatzteil verkauft. Nur bieten wer damit einverstanden ist. Falls Sie ein Problem mit der Ware haben nach dem Kauf können Sie sich telefonisch oder per Nachricht bei mir melden . Wir finden bestimmt eine Lösung die für beide Seiten optimal ist . Daher bitte vor der Abgabe einer Bewertung bei einem Problemen sich melden. Bilder sind Bestandteil der Artikelbeschreibung. Lieferumfang siehe Bilder. Die Versandkosten beinhalten zudem das Verpackungsmaterial (bitte beachten). BEARBEITUNGSZEIT EINES PAKETES KANN BIS ZU 4 WERKTAGE BETRAGEN!!! Wer mit den Versandkosten nicht einverstanden ist, muss das Gerät nicht kaufen. Wenn Sie ein Problem mit der Ware haben können Sie mich anschreiben und wir finden bestimmt eine optimale Lösung. Wen ein Gerät im Artikelzustand als Ersatzteil/Defekt eingestellt wird , wird es auch ausdrücklich als Ersatzteil beziehungsweise defekt verkauft, daher auch bei ungetesteter Ware , kein funktionsfähiges Gerät erwarten . Versandkosten fürs Ausland bitte Nachfragen. Die Ware unterliegt der Differenzbesteuerung nach UStG. §25a, eine Ausweisung der MwSt. ist nicht möglich.

Das Gerät wird ausdrücklich als defekt beziehungsweise Ersatzteil verkauft. Nur bieten wer damit einverstanden ist. Falls Sie ein Problem mit der Ware haben nach dem Kauf können Sie sich telefonisch oder per Nachricht bei mir melden . Wir finden bestimmt eine Lösung die für beide Seiten optimal ist . Daher bitte vor der Abgabe einer Bewertung bei einem Problemen sich melden. Bilder sind Bestandteil der Artikelbeschreibung. Lieferumfang siehe Bilder. Die Versandkosten beinhalten zudem das Verpackungsmaterial (bitte beachten). BEARBEITUNGSZEIT EINES PAKETES KANN BIS ZU 4 WERKTAGE BETRAGEN!!! Wer mit den Versandkosten nicht einverstanden ist, muss das Gerät nicht kaufen. Wenn Sie ein Problem mit der Ware haben können Sie mich anschreiben und wir finden bestimmt eine optimale Lösung. Wen ein Gerät im Artikelzustand als Ersatzteil/Defekt eingestellt wird , wird es auch ausdrücklich als Ersatzteil beziehungsweise defekt verkauft, daher auch bei ungetesteter Ware , kein funktionsfähiges Gerät erwarten . Versandkosten fürs Ausland bitte Nachfragen. Die Ware unterliegt der Differenzbesteuerung nach UStG. §25a, eine Ausweisung der MwSt. ist nicht möglich.

This is a reprint of an original Review from 1982. Very rare and hard to find! I have reviews and advertisements for hundreds of audio products on my Ebay Store! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

Works great. No remote. Missing all foot knobs. Has some wear. Item will be shipped within 1 business day of payment. If anything is not as described with your order please contact me first and I will work with you to find a solution. What you see is what you get, nothing more, nothing less. I do not ship to Puerto Rico, Hawaii, or Alaska. Please check out my store for other great deals. Thanks!!