Las Vegas Inposttitle:las Vegas

6 #

The Tango, as well as offering the full RIAA EQ-600P, our catalog also offered a form containing two inductances of the EQ-600P.
This form, signed EQ-2L, deploy, with external components, a completely identical to the RIAA EQ-600P, or, as shown in the picture, you can choose a slightly different solution.




The main difference is the absence of resistors R4 and R7.
This means first and foremost a less accurate theoretical curve, which rose from 0.2 dB to 0.4 dB tolerance.
On the other hand it becomes possible to do without a large capacitor value ahead of the RIAA.



As shown in the image, using the external components is possible to model the evolution of the RIAA, it becomes possible to adapt the response to compensate for the other components. In this way the theoretical increased tolerance may be reduced in practice.

be able to do without a large capacitor value is definitely a big step forward towards solutions of higher purity, but the comparison with the pure solution presented by the transformer is unacceptable.
Thus it becomes appropriate to consider other possible solutions, which pemettano to return to the signal path without tricks and without cheating, just as happened with the transformer, but without the loss of income that this entails.

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