Try Carbon Line
Trebles. Halfsets available at Schneider Musik, maybe these strings will help you as well.
I've solved a similar problem with my "emergency guitar" today. It's a Manuel Rodríguez FF Cutaway (Spruce/Cypress), which sounds very, very dark. The trebles are far too weak for the basses. Until lately, I strung up 5-Euro EXP46 clones (Thømann house brand), cause I didn't care too much on the acoustic sound (piezo sound was fine). But - momentarily - my main guitar went to a luthier for a neck liposuction
, so I'm forced to play that cypress thing more often.
A week ago, I tried to achieve an improvement by replacing the nylon trebles with shortly used Pyramid carbon trebles (HT), which I had still lying around, because they produced an awful plastic sound on my main guitar. But even with those strings the balance could be improved a little.
Then I ordered some Carbon Line Treble halfsets (HT) - which are said to be the most brilliant and loudest trebles ever. Don't believe? Search forum for Carbon Line and/or see https://www.kuerschner-saiten.de/englis ... _gitar.htm
Today I strung 'em up, and, yes: e1 is extraordinary. b2 and g3 are really nice, but louder than the Pyramids.
BTW: I've found some very cheap stock remainder string sets at Schneider Musik called Tenson strings (HT). I put a few sets to my order.
I strung up the basses in combination with Carbon Line strings - that hit the bullseye! The Tenson basses do NOT produce masses of squeaking overtones, far less than my EXP-clones. It's a full fundamental tone with low finger noise. They're rather thick. The perfect sound for Swing/Latin, but I'm afraid, Bach players would hate it