PineappleDave Posted April 7, 2019 Share Posted April 7, 2019 (edited) Hello, Saw this post just now. I was wondering what you did with the old power supply transformer. If you still have I need one as mine is japanese market 100v. Edited April 7, 2019 by PineappleDave Quote Link to comment Share on other sites More sharing options...
babadono Posted April 22, 2019 Author Share Posted April 22, 2019 @PineappleDave Just by chance i saw this. If you want someone to be notified you need to quote one of their posts or put their forum name in with an asterisk. Have you had the cover off your unit? One of mine had a transformer that could be adjusted to 100 120 volt input. Maybe yours does too. Quote Link to comment Share on other sites More sharing options...
PineappleDave Posted September 18, 2019 Share Posted September 18, 2019 On 4/22/2019 at 12:55 PM, babadono said: @PineappleDave Just by chance i saw this. If you want someone to be notified you need to quote one of their posts or put their forum name in with an asterisk. Have you had the cover off your unit? One of mine had a transformer that could be adjusted to 100 120 volt input. Maybe yours does too. @babadono I do a lot of mastering for electronic music and sometimes I use the 4BX for playback just to check how good they are, but yes you are right the master will be only as good as the original pre-master mix down track/s. Anyways I was wondering if you could mod mine similar to yours but with no external PS and no balanced xlr I just want it to sound better with those THAT components and the LME49720 op amp upgrade. My PS transformer is just 100 volts there is no provision for multi voltage taps on the PS. Quote Link to comment Share on other sites More sharing options...
PineappleDave Posted September 18, 2019 Share Posted September 18, 2019 BTW the LME49720 upgrade for the JRC 4558's? If yes I heard that it draws more current and might cause an oscillating issue? Quote Link to comment Share on other sites More sharing options...
keithman Posted June 17, 2021 Share Posted June 17, 2021 Hi good afternoon i like u doing can I get the information how how to upgrade my 4bx impact circuit please.. Quote Link to comment Share on other sites More sharing options...
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