To ensurez that you purchase with confidence.We guarantee the authenticity of the item. (If the item is found to be a forgery, we will promptly refund the full amount of the winning bid, shipping and handling fees to the buyers satisfaction.) *However, we will take measures to prevent swapping.Description This is a Class-A Class-AB switchable pre-main amplifier with the external heat sink form used in the #14, #15 and MA-5. Dual FETs with good pair characteristics are used in the input stage of the power amplifier section, and the source follower configuration prevents characteristic degradation due to impedance changes. By switching the bias current of the output stage, both Class-A and Class-AB can be enjoyed.Super high-ft transistors with a cutoff frequency of 90MHz are used for the power elements to minimize switching distortion. By employing an external heat sink, the operating temperature of the transistor can be maintained at around 60°C, less than half the usual temperature of around 150°C. The power amplifier is designed to be integrated from the power amplifier section to the control section. Low-TIM design is consistent from the power amplifier section to the control section.A unique 2-pole phase compensation circuit improves the bare characteristics, and the open loop gain is kept as low as 64dB and the NF amount is limited to 26dB to reduce transient intermodulation distortion in the high-frequency range. The phono amplifier section is a low-noise, high-gain type that allows direct connection of MC cartridges through a unique Low-TIM design.The RIAA curve is set by carefully selecting low-impedance elements to improve the audible signal-to-noise ratio. Tin-coated oxygen-free copper wire is used for the power supply circuit and speaker output cables. In addition, a 10A power cord, which is twice as large as a normal power cord, is used for the power cord.The wiring has also been shortened by using a construction method. Type Stereo Premain AmplifierRated output (20Hz to 20kHz, both channels driven) Class-AB: 60W+60W (8 ohms)Class A: 15W+15W (8 ohms)Total harmonic distortion (20Hz to 20kHz) 0.015% (8? load, at rated output)Modulation distortion ratio (60Hz:7kHz=4:1) 0.015%(8ohm load, at rated output)Frequency response 20Hz to 20kHz +0 -0.3dB5Hz to 100kHz +0 -2dBDamping factor (8? load, 1kHz) 70Input sensitivity/impedance Phono1, 2 MM: 2.5mV/47k?Phono1 MC: 200µV/100?Tape, Tuner, AUX: 150mV/25k?RIAA deviation 20Hz to 20kHz ±0.25dBSN ratio(IHF-A) Phono MM:84dBPhono MC: 64dBTape, Tuner, AUX: 104dBTone control Low range: ±10dB(100Hz)High frequency: ±10dB(10kHz)Phono maximum allowable input (1kHz) MM: 330mVMC: 25mVPower supply voltage AC100V, 50Hz/60HzRated power consumption (Electrical Appliance and Material Control Law) 150WDimensions: W416 x H117.5 x D334mmWeight 9.5kg You can order in bulk with other products,and price negotiation ispossible. We also purchase many other rare andlimited items. Pleasefeel free to contact us.Condition Brand New (100) Mint (95~) ************************************************* Near Mint (90~) Excellent (80~) Very Good (70~) Good (60~) Junk (*This applies to all electronic items that have not been tested for operation with respect to junk items.) *Electronics *Please check the voltage before ordering.Except for our overseas compatible products, the voltage is Japanese specification (AC100V 50/60HZ). For those in 120V-240V regions, please use a down transformer. We also sell down transformers (made in Japan) at a lower price than usual only for those who purchase the relevant products. Shipping Handling Time:We strive to ship all orders within 7business day of payment.I promise to deliver our products toyou safely, securely, and carefully. ~For USA?Expedited (DHL or FedEx or EMS) 5days(Approx.)?Standard (DHL or FedEx or EMS) 7~10days ~For EU Area ?Expedited (DHL or FedEx or EMS) 5days(Approx.)?Standard (DHL or FedEx or EMS) 7~10days ~For the other countries?Please check by lists or ask us directly. ~Latin American regions can now be shipped for an additional shipping fee.?Please contact us for details.????????? *Stuffed toys and other items will be compressed for delivery. They will return to their original state when opened. *During the end of November to the end of December, most ofshipping will be delayed, so please order for Christmas in November.*Shipping is only available toregistered addresses. Please note that we cannot ship to addresses thatare not registered. *We are currently experiencing unstable delivery in some areas dueto the Corona influences. Please check your tracking number or contactyour local shipping office if your order is arriving much later than expected.About Us I want to people of the world to know the Japanese good item through ebay.Your satisfaction is our priority and I promise to offer a pleasant shopping experience to you. Please do not hesitate to contact us if you have any questions. I try to satisfy the customer. Thank you very much for looking at this item.International Buyers - Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying. If the cancellation is due to the buyer, we will charge a Paypal fee. If there is a remote charge for your address, we will charge you for additional shipping. Thank you for your understanding.

Perfectly working, nice cosmetic condition.Speakers terminals upgraded to HQ standard 4mm banana plug binding post. Genuine Marantz terminals will be attached in parcel too. This model version can support many different main power voltages from 110 up to 240 VAC. Nowadays rare. Top quality line from Marantz for music lovers, with no compromises in topology ant component selection. Rich and warm sound like good Single Ended tube amp.Came from one owner from UK, who keeps it well since purchase in late 1985. Specifications:https://audio-database.com/MARANTZ/amp/pm-4-e.html