LaserActive:PAC-S10 PAC ATTACK Audio Bypass

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The PAC ATTACK is an audio bypass board based on the Triple Bypass V2 by Tian Feng and alters the audio response of the PAC-S10 cartridge audio to more closely match a Genesis/Mega Drive Model 1 VA3.

MDFourier Comparison

Presented here is the MDFourier analysis on a stock PAC-S1, which has the service bulletin audio fix already integrated into the design by Pioneer. While the PSG and Noise channels are well aligned with a Model 1 VA3 Genesis, the FM audio has a sharp cutoff. Installing the PAC ATTACK moves the cutoff frequency for FM audio further out, making the frequency response more even across the range.

Stock Frequency Response, Bulletin Fix Included
Cartridge audio frequency response after installing PAC ATTACK


PAC ATTACK Installation Guide