P h o n o r i a a p r e a m p l i f i e r f o r M M c a r t r i d g e model: MM 70 mm |
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All solid state design |
The preamplifier M M 70 mm is a complete phono moving magnet riaa all solid state design that operate on class A . This preamplifier provide right amplification and equalization to standard riaa at the phono moving magnet signal. The circuity use a discrete device for moving magnet input, the active device has beed selected at very low noise operation . For best clear sound just a one output capacitor as polipropylene audio grade is include in output circuity. A solid shielded cabinet as hi-tickness off 1,5 mm reduce interference from emc field for a better signal to noise ratio. Great attention by designer has beed look around the power supply, this circuity operates with over ten-thousand microfarad capacitors for reduce the noise and best reseivor energy, this hi value capacitors works togheter with a special ultra low noise voltage regulator devices.
C O N V E N I E N C E and O P T I O N A L
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no sides wood available for this unit |
S P E C I F I C A T I O N
(all measure by Audio Precision System One @ 230 V ac) |
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Type |
M M phono riaa preamplifier | |
Input |
M M at 47 Kohm 100 pF | |
Gain |
45 db (Mm) | |
Frequency Response |
20 - 50Khz +/- 0.3 db | |
Noise ratio |
75 db ( A ) | |
Output Impedance |
50 ohm | |
Voltage available |
Power supply unit @: 230-240 Vac / 110-120 Vac / 100V ac all voltage at 50 - 60 Hz | |
Overall Dimension and weight |
225 x 55 x 155 (L x H x D mm) for
main unit
weight 2.5 Kg net |
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