I’ll be interested to find out your solution for this. I did the same thing on my Rock-Ola 1478 and believe it lost the low end bass. I’m questioning the quality of the new model P51.

Get Outlook for iOShttps://aka.ms/o0ukef ________________________________ From: Jukebox Repairman via Jukebox-list jukebox-list@lists.netlojix.com Sent: Tuesday, October 17, 2023 4:07:37 PM To: Jukebox mailing list jukebox-list@lists.netlojix.com Cc: Jukebox Repairman jukin510@gmail.com Subject: [Jukebox-list] Audio Question

I recently swapped out a defective Astatic cartridge with a Pfhansteil P51 on my personal 1015.

Since the swap the audio seems to have lost a lot of low end and sounds “tinny.”

Years ago when I restored it, I had added a Bill Bickers upgrade to the volume control box to improve the bass response.

Obviously I’d like it to sound like it did before the swap. _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fjukebox.mark...http://jukebox.markmail.org/

Is the Bill Bickers upgrade inside the volume control box?  If not, just try bypassing it.

Also, have you gutted the volume control enclosure of it's caps, chokes, and pot and replaced it all with a single 100K pot? Sometimes they add a few resistors in there but I've never really had the need.  Some people say that the exact potentiometer value used can be as high as 1 meg but I have not tried it (reading down more I see some do go a lot higher).  Before trying anything major, try only the pot to see how it sounds, you may easily get a hum since it's not shielded, but try it just as a test.  If it tests good and the Bickers kit is in the volume control box, you may want to try to find another volume control box to put the single pot in.

Also, those Pfhansteil P51's aren't exactly the best of quality, but they aren't _that_ bad for the average person.  You could even buy another one and try swapping it out, it might sound different.  How long has it been since a new needle of the proper size for whatever type of records you are playing?  Is this kit the one that uses a bit of silicone sealer to allow for the heavy tone arm weight?  Each one is a new needle with the silicone applied by hand so each one may sound a little different. Although the bit of silicone "glue" is much more likely to affect the highs not the lows.

Tony

On 10/17/2023 6:07 PM, Jukebox Repairman via Jukebox-list wrote:

I recently swapped out a defective Astatic cartridge with a Pfhansteil P51 on my personal 1015.

Since the swap the audio seems to have lost a lot of low end and sounds “tinny.”

Years ago when I restored it, I had added a Bill Bickers upgrade to the volume control box to improve the bass response.

Obviously I’d like it to sound like it did before the swap. _______________________________________________ Jukebox-list mailing list --jukebox-list@lists.netlojix.com To unsubscribe send an email tojukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives:http://jukebox.markmail.org/