Why Single-Ended?


I’ve long wondered why some manufacturers design their components to be SE only. I work in the industry and know that "balanced" audio lines have been the pro standard (for grounding and noise reduction reasons) and home stereo units started out as single-ended designs.

One reason components are not balanced is due to cost, and it’s good to be able to get high quality sound at an affordable price.
But, with so many balanced HiFi components available these days, why have some companies not offered a fully-balanced amp or preamp in their product line?
I’m referring to fine companies such as Conrad Johnson, Consonance, Coincident, and Bob Carver’s tube amps. CJ builds amps that sell for $20-$39K, so their design is not driven by cost.

The reason I’m asking is because in a system you might have a couple of balanced sources, balanced preamp, and then the final stage might be a tube amp or monoblocks which have SE input. How much of the total signal is lost in this type of setup? IOW, are we missing out on sonic bliss by mixing balanced and unbalanced?

128x128lowrider57

Showing 2 responses by mac48025

I'm with you lowrider57, I'm leaning towards single ended amps with high efficiency speakers like Herman, Charles and many others have. To me there's something magical about that sound. I've heard great sound from all different systems from tubes and SS, single ended and balanced, high or low efficiency speakers, analog and digital......there's a flavor for every taste. Ain't it great? 
I totally agree Charles. I've been following and enjoying all of these well informed ideas and learning quite a bit in the process. Sounds as if both topologies can offer great sound if properly designed and implemented. Kudo's to all the gents that have contributed their vast knowledge in such a civil fashion. I'm looking at purchasing a new pre and amp that are OTL but don't know if they are single ended or fully balanced.....on one hand this discussion makes me want to find out but on the other hand I guess it doesn't really matter since either approach has its merits.