Secret Portaphiles – Frankenamps

During the pre-production design phase of any amps that build I tend to build some amps that don’t make it into the final design.   One such design is a 627X that used the same potentiometer as the MICRO/627ORIGINAL only in a larger case and battery being added.  I sold this amplifier a while back to a customer asking for exactly this combination.  He wanted to get as close to the original 627 design only with a larger battery so I offered him this Frankenamp.  I had noticed the owner posted a pic of it on the head-fi Portaphile appreciation thread but no one noticed other than me and him that this amp was a one of a kind.   Recently I saw this amp pop up on UK EBay and wanted to let the buyer know what he bought seeing this is not quite a full 627X but a one of a kind amp.   Contact me if you’re out there.   Happy listening!

2 Responses to “Secret Portaphiles – Frankenamps”

  1. Sandor Kantor March 2, 2015 at 12:31 pm #

    Dear Cesar,

    I am the new owner of that amp listed on UK Ebay site at around Christmas 2014. I thought I’ve bought a ‘regular’ 627x. I cannot pick up the differences between this and the regular one as I’ve never owned a Portaphile amp before. Should I be worried about it. It has been working well so far. What are the differences between this Frankenamp and the regular 627x technically and sound-wise? Please let me know.

    Best wishes,

    • PortaphileAdmin March 6, 2015 at 2:30 am #

      Hi Sandor, no need to worry, the main difference between this amp and an actual 627X is that your amplifier uses the same ALPS potentiometer as the MICRO and 627 amplifiers. It’s still a great sounding amplifier but a little different than the 627X so technically not an actual 627X. This was a prototype of the longer running 627/MICRO before I decided to change out the potentiometer in addition to putting in the bigger battery. I hope you enjoy it!

Leave a Reply to PortaphileAdmin Click here to cancel reply.

This site uses Akismet to reduce spam. Learn how your comment data is processed.