Jelco TK-850L review
Dear Jelco 750L owners: According with the information in my posts all of you can/could re-align your tonearm to achieve lower distortion alignment levels. Btw, I don't check the other alignment parameters in the other Jelco models but probably shows the same " behavior " and needs new alignment parameters. R. |
Dear @noromance : There are at least 3 tonearm characteristics than changed in the 850 against the 750: new bearing type ( knife. ), lower vertical bearing sensitivity and lower effective length. All those characteristics are main part of what you are listening and maybe exist a four characteristic change that could be a better internal wiring quality but I can’t say for sure: https://audiosensibility.com/information_links/Jelco_750_InstructionManual.pdf https://audiosensibility.com/blog/accessories/jelco-tonearm-store/jelco-tonearms/#!/Jelco-TK-850L-12... """ Increasing the stylus overhang to 2mm past where it is spaced (13mm) helped. """ well you can do that but increase the distortion levels even if you can’t aware of it. They said that Jelco uses IEC and Baerwald/Löfgren A alignment protocol but the Jelco specs/parameters are wrong either with the 750 and the 850 and you need to re-aling it: in your 850L that comes with 303mm on EL ( in the 750: 305mm. ) the correct alignment tonearm/cartridge parameters are: P2S: 289.5mm overhang: 13.5mm offset angle: 17.96° If you can try it and see what happens. Certaninly must be lower distortion levels but you are the best judge in your room/system. Regards and enjoy the MUSIC NOT DISTORTIONS, R. PS.: to make things easy for you and stay with 290mm P2S distance you can test both tonearms with the correct Baerwald/Löfgren A alignment parameters and not the Jelco gaves: overhang: 13.45mm offset angle: 17.9° In that way your listening tests between both tonearms will have a better " meaning " and the 850 will be with a correct alignment set up. |
