-Sound-

Sound Engine: WASAPI Exclusive

Sample Rate: 48000Hz

Sound Output: Stereo/Mono

Quality: Holy Shit!

Bass Boost: +8
High Boost: -15

-Video-

Texture filter: smooth
CPU Filter: HQ2x
GPU filter: Light blur
GPU Scanline: Grid (or None)
Scanline Gap: 12
Scanline Intensity: 60

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Note: All standard consoles SEGA GENESIS/MEGA DRIVE/MEGA DRIVE 2 not have difference in volume levels.

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Standard type:

SEGA GENESIS/MEGA DRIVE/MEGA DRIVE 2

PSG Volume: 0.800000

smspsg chan4 preamp: 0.110000

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Rare versions:

SEGA MEGA DRIVE 2 V1.0

PSG Volume: 1.000000

smspsg chan4 preamp: 0.170000

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SEGA MEGA DRIVE 2 V1.2

PSG Volume: 0.300000

smspsg chan4 preamp: 0.110000

SMD2 accurate PSG volume completed at 100%

SEGA MEGA DRIVE 2 V1.0

<float name="smspsg_chan4_preamp" value="0.172000" />
<float name="smspsg_chan3_preamp" value="0.120000" />
<float name="smspsg_chan2_preamp" value="0.130000" />
<float name="smspsg_chan1_preamp" value="0.100000" />
<float name="megadrive_ymvolume" value="1.000000" />
<float name="megadrive_psgvolume" value="0.800000" />
<bool name="megadrive_monomix" value="true" />

Found minor inaccuracy in volumes...

SEGA MEGA DRIVE 2 V1.0

<float name="smspsg_chan4_preamp" value="0.172000" />
<float name="smspsg_chan3_preamp" value="0.115000" />
<float name="smspsg_chan2_preamp" value="0.125000" />
<float name="smspsg_chan1_preamp" value="0.100000" />
<float name="megadrive_ymvolume" value="1.000000" />
<float name="megadrive_psgvolume" value="0.800000" />
<bool name="megadrive_monomix" value="true" />

Traysia game with low PSG.

<float name="smspsg_chan4_preamp" value="0.172000" />
<float name="smspsg_chan3_preamp" value="0.115000" />
<float name="smspsg_chan2_preamp" value="0.125000" />
<float name="smspsg_chan1_preamp" value="0.105000" />
<float name="megadrive_ymvolume" value="1.000000" />
<float name="megadrive_psgvolume" value="0.800000" />
<bool name="megadrive_monomix" value="true" />

Traysia sounds correct now + recalculate volumes for 0.900000

<float name="smspsg_chan4_preamp" value="0.172000" />
<float name="smspsg_chan3_preamp" value="0.105000" />
<float name="smspsg_chan2_preamp" value="0.115000" />
<float name="smspsg_chan1_preamp" value="0.100000" />
<float name="megadrive_ymvolume" value="1.000000" />
<float name="megadrive_psgvolume" value="0.900000" />
<bool name="megadrive_monomix" value="true" />

Now SMD2 changes volumes 0.900000 ~ 1.050000 as real thing.

For standard SEGA GENESIS/MEGA DRIVE/MEGA DRIVE 2

<float name="smspsg_chan4_preamp" value="0.150000" />
<float name="smspsg_chan3_preamp" value="0.100000" />
<float name="smspsg_chan2_preamp" value="0.100000" />
<float name="smspsg_chan1_preamp" value="0.100000" />
<float name="megadrive_ymvolume" value="1.000000" />
<float name="megadrive_psgvolume" value="0.570000" />
<bool name="megadrive_monomix" value="false" />