Grace Design m908 Phono Option (Upgrade)
MPN #M908 phono-UPG
Phono stage input option card for m908
The m908 phono module is a high performance RIAA preamplifier. This option is available on new and existing units.
The phono amplifier can be optimized for a wide range of phono cartridges via a number of internal jumper settings. Moving magnet cartridges can be accommodated with the 40dB gain setting and 47kohm input impedance. Low output moving coil cartridges can be accommodated with the 60dB gain setting and 100 ? input impedance. The phono module also provides variable input loading from 0-500ohm with VR1 and VR2. Connect an Ohm meter to the unbalanced input jacks to set the input loading to the cartridge recommended setting.
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