MC/MM RIAA Phono Class A Pre-Amplifier
The New Holton Moving Coil and Moving Magnet RIAA pre-amplifier has been developed as a stand alone pre-amplifier with its own on board low noise DC power supply. It only requires the addition of a 15VA power transformer to power it.
Power the RIAA preamp from batteries is also possible.
It is also designed to work with the New Gain Block One preamp found else where on the Holton Audio web site.
The new RIAA preamp has dip switch selectable input impedance for moving coil and moving magnet cartridges as well as dip switch selectable gain setting for both types of cartridges.
The printed circuit board is made from high quailty 2mm thick FR4 material with a thick 2 ounce copper foil, Gold immersion plated.
Moving Magnet: 40dB | Moving Coil: 60dB
Moving Magnet: <+/-0.3dB
Moving Magnet: 86dB | Moving Coil: >76dB
Moving Magnet: 47k Ohm | Moving Coil: 100 Ohm, 47 Ohm
Moving Magnet: >83dB | Moving Coil: >69dB
35mm x 90mm x 158mm