Important!
It is mandatory to use Precision Interface Technology® interconnect cables from the tonearm/turntable to the FM 222 MK-III. The reason is that no other cable can guarantee the quality of true symmetrical balancing and - as important - the extremely high rejection of interference signals (CMRR). All other cables lower the interference rejection and thereby forfeit the huge effort that goes into achieving the singular true balanced signal preamplification of the FM 222-MKIII. Only when P.I.T. phono cables are used can this interference rejection be achieved. This is why a P.I.T. phono cable must be ordered with every FM 222-MKIII. Click here for further info on: Phono Cables
重要的！必须使用 Precision Interface Technology® 从唱臂/转盘到 FM 222 MK-III 的互连电缆。原因是没有其他电缆可以保证真正对称平衡的质量，并且同样重要的是极高的干扰信号抑制 (CMRR)。所有其他电缆都会降低干扰抑制，从而放弃为实现 FM 222-MKIII 的单一真正平衡信号前置放大而付出的巨大努力。仅当 P.I.T.使用唱机电缆可以实现这种干扰抑制。这就是为什么 P.I.T.每台 FM 222-MKIII 都必须订购唱机电缆。单击此处了解有关以下内容的更多信息：唱机电缆
The new layout with complete remodelling and
repositioning of critical parts achieves noticeable
improvements.
Some ameliorations are not visible, but help
performance; amongst them are:
- an even lower interchannel crosstalk.
- a multitude of layout refinements that
achieve some noticeable improvements.
- even better CMRR guarantees perfect
signal symmetry.
- singular accuracy of de-emphasis curves.
Output common-mode rejection (OCMR) is defined as the change in differential output voltage due to a change in output common-mode voltage. When measuring OCMR，VIN is grounded and a common-mode voltage，VCM， is applied to the output as shown in Figure 4. Ideally no differential mode signal (VOD) should appear. However， a small mode-conversion effect causes an error signal whose magnitude is quantified by OCMR.
发表于 2023-12-31 21:34
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