| Re: PB12 plus or PC-Plus 16-46
The PB12-Plus is tuned to 20 Hz with all 3 ports open. The 20-39 PC-Plus is the cylinder equivalent, also having a native tune of 20 Hz. The 16-46 PC-Plus is has a native tune of 16 Hz and is not recommended for your application unless you plan on extensive pipe organ playback.
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