Yamaha Natural Sound (NS Series) C-4 Control Amplifier (Pre-amplifier)

This is an amazing full featured vintage amp, with a terrific Headphone out with a plethora of tone controls

Features:

·       Built in MC cartridge Head Amp

·       Exclusive Current Noise Reduction Circuit

·       Versatile BASS/Treble controls with continuous Turnover frequencies

·       Cartridge Load Selectors (Resistance and Capacitance)

·       Exclusive Headphone Amplifier + exclusive volume control

·       Gold plated phono input terminals (there are three)

Cosmetics:  Very good overall condition with some minor scratches that do not detract in a meaningful way from an overall excellent appearance for its age. 

Of note, there is small light scratch on the face panel top left corner.  Additionally, there are some small areas where the paint is rubbed off on the sides of the unit.  Please see photos.

Operation: This is a vintage unit that was made in 1979, therefore, its future operation is not guaranteed.  This unit has previously been serviced by "The Soundsmith", however there is no warranty attached.  The amplifier performed without any fault while in my possession, except for recent failing of the audio mute button light.

At the time of the recent testing, this unit performed well, except where noted below:

1:  The Audio Mute button Light recently went out and no longer lights up when activated.  This does not affect the function, only the light.  The Tone Bypass and Power button Lights still work, but may eventually fail as well, unless replaced with new parts.  Again, the light does not affect the function of the button.

2.  There may be some noises due to scratchy sounding controls, which generally appear if the unit sits unused for a long time.  These will typically clear with use.  The majority of the controls operate without fault.

Includes: Amplifier, user manual and the original color brochure detailing all the features of this amplifier.