I’m selling this unit for a friend; it belonged to her uncle who recently passed away. Because of that I don’t know exactly how old the unit is. I did put it into a system to confirm that it work perfectly - it does – and that there are no issue with it. Additionally, it is in very good condition, there are no scratches or blemishes on the faceplate and the casework is in very good shape; my conservative rating is simply to reflect its age. It works with unbalanced RCA connections only; there are no balanced inputs or outputs.
If you don’t know what this is and you’re asking yourself, so what the heck is the Source Components Electronic Harmonic Recovery System…well, if you’re looking to increase the ‘analogness’ of your system, adding a rightness of pace and dimension this may be a very reasonably priced solution – even when new it was only $450. Particularly if you have a reasonably priced solid state system – though if you read the reviews you’ll see some tube guys very much liked the insertion of this unit further up their signal path (between CD and preamp).
If you’re still trying to understand what this little black box does, and if it actually works (!), one of the better – and fairly direct – explanations is from the guys over at Positive Feedback. If you’re interested at all I recommend reading this review.
“The unit is an interface optimizer between source and amplifier. The device dramatically lowers the signal-to-noise ratio and provides a "friendly" output impedance for the amp. In effect, my Anthem Amp1 thinks it is "seeing" a megabuck preamp rather than the variable output of my CD player. The HRS is built to a standard many times its retail price. First-class parts are used throughout. The process is purely analogue, and not the result of equalization or smoke and mirrors.”
Additionally, in his July 1998 Stereo Times review of the HRS, Clement Perry had this to say:
“Something quite strange was happening to me, a feeling as though someone slipped some vinyl into the system. Yeah, that’s right, somehow the HRS seems to convey a feeling of righteousness that’s very reminiscent of vinyl. You sense a very low noise floor and hear spacial qualities that I’ve never before encountered with digital. Moreover, there appeared to be much more cohesion to everything. Everyone was playing more together.”
The entire review can be found here: http://www.stereotimes.com/acc070198.shtml
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