I build a wood platform to install the tangent tonearm out of the platter support in a TNT. I obtained very detailed and increased highs and mid band, but I lost the bass. Any idea to return to the balance between H-M-L?
Such isolation decouples the two elements and is likely to affect bass response. That (and cost/complexity) is why it is rarely done. You might try mass-loading the tonearm mount to match the resonant properties of the platter support.
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