Raúl, en una comunidad cerrada donde mantengo, entre otros, el hilo: Components Turntables, Tonearms, Cartridges... donde he reseñado hace un momento la review del Lounge hay otro, DIY, que tiene unas especificaciones excelentes. Corto y pego:
Muffsy PP-3 Phono Preamp DIY Hifi Phono Stage
-> http://www.muffsy.com/



Muffsy Phono Preamp Specifications !!!!
-> http://www.muffsy.com/build-it.html
Muffsy PP-3 Phono Preamp DIY Hifi Phono Stage
-> http://www.muffsy.com/



CitarA Complete DIY Hifi Phono Preamp
The Muffsy PP-3 is a complete DIY phono stage for moving magnet (MM) and High Output Moving Coil (HOMC) cartridges.
You can buy the phono stage, the power supply and the back panel to get a fully functional phono preamp. They all come with every necessary component, except a case and an AC wall adapter.
Use a B0905 cabinet, and you won't have to drill a single hole or do any modifications.
Adjustable and Customizable
With the on-board DIP switches the gain can be set from 36 to 46 dB, and the input impedance is adjustable from 17k to 150k in 15 steps. Add input capacitance to match your cartridge and cables.
As this is DIY, all these options (and more) are of course fully customizable!
Muffsy Phono Preamp Specifications !!!!
-> http://www.muffsy.com/build-it.html
CitarTotal Harmonic Distortion: 0.00190%
Total Harmonic Distortion + Noise: 0.01013%
Signal to Noise Ratio: 112.83 dB (Inputs shorted)
Intermodulation Distortion: 0.0195% (ITU-R)
Crosstalk: -102.24 dB
Dynamic Range: >110 dB (THD+N 1%)
RIAA Compliance: +/- 0.15 dB
RIAA Equalization: Passive
Gain: 36-46 dB, in four steps
Input Impedance: 17k-150k ohm, in fifteen steps
Input Capacitance: Optional
PCB Size: 84 x 56 mm