NAD PP 4 Phono Preamplifier For MM & MC Cartridges w USB Port & AC Adaptor Tested, seems to work as it should. Sorry, I dont know much about this. The power light comes on when its plugged in and the usb light comes on when its connected my laptop. Shipping Policies-I ship either USPS First Class, Priority Mail, or UPS, depending upon the weight of the package. I ship packages every day (M-F) and, barring any dire unanticipated circumstance, your package will be in the mail within 24 hours of purchase (unless holiday or weekend). We do use recycled shipping materials if possible. We are happy to combine shipping on multiple items and will send you an invoice for the reduced rate upon request. No worries if youve already paid, well send a partial shipping refund. All photos are non-stock and of the actual item. Photos are considered part of the description, please view carefully. Items are described to the best of our ability and visible flaws are carefully noted and/or photographed. We are a smoke-free, pet-free household. If you have a problem with your purchase please contact us before leaving negative or neutral feedback. All reasonable offers are welcome and will be carefully considered. Thanks for looking!

FOR SALEACROLINK 7N-PC4020 LEGGENDA POWER CABLEFITTED WITH A MISSNG LINK UK MAINS PLUG. DE- OXIT TREATED.1 METER IN LENGTH. A DIY PROJECT THAT I DIDNT FINISH HENCE NO IEC WITH THIS CABLE. PROBABLY THE BEST MAINS CABLE! ULTRA PURE COPPER, 7NS !!! THE AWG IS 2.5MM SO PERFECT FOR DIGITAL SOURCE. £80 FOR THE MAINS CABLE - BOUGHT FROM MCRU TRULY HI-END - ATTACH A QUALITY IEC SOMETHING FROM IEGO AND YOU HAVE THE BEST SOUNDING CABLE AT A FRACTION OF NAMED HI-END BRANDS THAT OVERCHARGE . TECH DETAILS - wenty eight 7N Cu strands with a diameter of 0.37 mm were twisted while applying squalane oil and filmed with polyolefin as an insulator. This is made of a polyolefin mixed with tungsten and amorphous, with a 3-core structure in which a radio wave absorbing magnetic yarn and a silk thread are arranged in the center together with a ground wire of 4N conductor of the same structure. It is further shielded with copper foil tape and is covered with sheath of high quality lead-free PVC.Moreover, in addition to its own acro link / stress free processing, the conductor has crystal grains several dozen times that of general pure copper, and 7N Cu DUCC (Dia Ultra Crystallized Copper) having a uniform crystal lattice direction is adopted.Unique Acrolink / Stress Free Processing: Stroke-free products of Acrolink realized that the structure can be restored to a healthy state by a self-annealing phenomenon unless it is too big external force due to unique special annealing treatment and characteristics of high purity copper It is the only cable in the world. At the time of heat treatment after wire drawing processing, atomic arrangement transformation has reached 1 billionth order compared with normal 4N copper, and the number of crystal grains is 1/80 to 1/100. Further flowing current accelerates aging = self annealing, residual strain decreases, the structure recovers soundly, and the sound quality is improved.7N Cu DUCC: Dia Ultra Crystallized Copper is a high-purity copper conductor for audio made by growing crystal grains to several tens of times larger than ordinary pure copper and aligning crystal lattice direction. The larger the grain size, the smaller the grain boundary (the interface between the crystal and the crystal) becomes, and the sound quality improves dramatically. Also, with respect to the directionality of the crystal, observing its direction by analytical phenomenon by X-ray irradiation, the manufacturing process is optimized. DUCC × Acrolink · Stress-free synergistic effect makes it an extremely superior wire material with unparalleled direction optimum for power supply current transmission.

A Very Nice example of the NAD Series 20 3020A. 100% working perfectly. It is in very good condition. Original RCA MJ2955/ 2N3055 power transistors still present. Casing in very good condition too. Input connectors are 24 Carat Gold plated as is the Phono earth connector and the upgraded speaker Posts ! Amp totally cleaned inside. These old amps need it - see last picture ! All potentiometers have been serviced (Volume, tone etc) and work with no crackles. ALL of the Electrolytic capacitors have been replaced including larger Power supply Filter capacitors. It is imperative that these are all changed. Old capacitors of 40 years+ are EOL and they will fail. New multi-turn trimpots installed for Amp idle bias adjustment. DC offset and bias have been correctly set. Original RCA output transistors remounted on new Silicon thermal transfer pads, replacing old dried mica insulator/ thermal compound. This amplifier is an upgrade of the original 3020 series 20. It includes an MM/MC Phono input. Released around 1981. It has a truly stunning sound quality that always impresses and is suprisingly loud ! Delivery Service will be with Royal mail Special Delivery by 1pm next day and normally posting will be within 24 hours (weekdays). Ebays estimate is an over-estimate ! Collection is also welcome from North London Sorry No International postage

This is a really nice example of the NAD 3120. The NAD 3120 is the Audiophile upgrade of the 3020 series 20 including an MM/MC Phono input. Original RCA MJ2955/ 2N3055 power transistors still present. This amplifier has an clean front panel with just minor blemishes. Casing in very good condition too. Input connectors are 24 Carat Gold plated ! Speaker connectors are banana 4mm binding posts on this model Amp totally cleaned inside. Volume potentiometer (Split balance type) has been serviced and works perfectly with no crackles. ALL of the Electrolytic capacitors have been replaced including larger Power supply Filter capacitors. It is imperative that these are all changed. Old electrolytic capacitors of 40 years+ are EOL and will fail. Power supply Filter caps replaced too. New multi-turn trimpots installed for Amp idle bias adjustment. DC offset and bias have been correctly set. Original RCA MJ2055/ 2N3055 output transistors remounted on new Silicon thermal transfer pads, replacing old dried mica insulator/ thermal compound. All Solder joints checked. This amplifier has a truly stunning sound quality guaranteed to impress. Suprisingly loud ! Delivery will be with Royal mail Special Delivery by 1pm next day (or another Courier if there is any industrial action.) Collection is also welcome from North London N15 Sorry No International postage

Préampli phono NAD PP4 graphite. usb Fonctionne vendu sans le transfo