Marantz PMD-661&MKII Plus MOD

Marantz PMD-661 & PMD-66MKII Plus MOD. This is an add on to an existing upgrade and must be installed at the same time as a standard upgrade or repair service. It can be installed with any of the 4 MODs we offer. This MOD removes the built in mics and dual level mono. It significantly increases dynamic range by lowering THD and noise. Recommended for anyone analyzing the audio signal, nature recordists and for audiophiles.