For Sale: Tested, working, and cleaned rare Natural Sound pre-amplifier. Made in Japan early 1990's.
Works 100%, no issues. I am including a Yamaha VS71410 system remote control (not shown)- this remote will control all the features of the preamp that can be controlled wirelessly except for "Tape 2" selection, can also control a Yamaha tuner, CD player, etc. Unit shows minor cosmetic wear only. All controls and indicator lights are working correctly. Sound quality is perfect. Besides it's audiophile quality specifications it has some less common features including adjustable turnover frequencies, subsonic filter, Rec. out options, source direct option, and various settings for both MM and MC phono cartridges..
Owner's Manual available from Yamaha here: http://www2.yamaha.co.jp/manual/pdf/av/english/SepA/CX-630.pdf
Info from the web:
Description
The Yamaha CX-830 features continuously variable loudness control, independent record out selector, 8 audio inputs, 3 video inputs and programmable remote control.
Specifications
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.001%
Input sensitivity: 0.1mV (MC), 2.5mV (MM), 150mV (line)
Signal to noise ratio: 90dB (MC), 95dB (MM), 106dB (line)
Channel separation: 70dB (MM), 60dB (line)
Output: 150mV (line), 1.5V (Pre out)
Dimensions: 435 x 96 x 301mm
Weight: 5.4kg
Email for additional/higher resolution photos.
Send your zip code for ship cost - should be between $9.99 and $21.99 if you are in the continental USA (listed Nov. 2013).