View Single Post
Old 4th Dec 2017, 8:52 pm   #86
TimMills
Retired Dormant Member
 
Join Date: Nov 2017
Location: Norwich, Norfolk, UK.
Posts: 46
Default Re: Looking for help please with 1964 Trio W-41 stereo valve amp

ok... Caps all sorted.
I have one more little thing to deal with please:
the headphone output loading...
I'm looking for a half decent pair of headphones to use with this amp now, however modern headphones seem to be too sensitive. I have a pair of 100ohm Senn HD26 that work ok with an impedance reducing cable that I had made up, but looking at the schematic I'm thinking it might be worth adding something where the 56ohm R23/R123 are. ..what would I need to solder in here and in what sort of configuration in order to dispense with the cable and plug in any newer set of cans? I'm really struggling with the way 220ohm headphones are more sensitive than 50ohm. The lower the number .. the greater the load... is that right.? and to reduce that number I have to wire resistors in parallel? Many thanks for your help again guys.
Tim
TimMills is offline