tube upgrade for first sound


Has anyone been able to improve on the stock tubes in the First Sound preamps? I was thinking about trying the Russian 6H23. Any thoughts? thanks
84audio

Showing 5 responses by guidocorona

This thread is an absolute fountain of priceless info!!! Oldpet, could you tell us what are the two tube preamps you examined then discarded on your way to audio Nirvana with the First Sound. And where did these preamps fall short?
Oldpet, your answer was exactly what I was looking for. Will you be getting a hotrodded FS or a standard configuration? If I order one I will more than likely source a hotrod version which will maximize the audible benefits of its minimalist design.
Oldpet, send Emmanuel an eMail and he will sort out the mystery. On the other hand, it would not be the first time that UPS gives a package the grand tour of the nation, before deciding to route it finally to its intended destination.
Having said that, UPS is not as bad as the US postal service. Three years ago I sent a Christmas present by US mail from Austin (Tx) to Milano (Italy). It took just over three months. Reason is that prior to finally routing the package to Milan, my nephew's toys were sent all the way to Manila in the Philippines, where the box was opened, fully inspected, repackaged, then sent on its way to Milan.