16
1 2
4
•
The phono input on icOn is a LINE input which needs an appro-
priate RIAA preamplifier connecting to this.
•
It is necessary to calculate the correct value from the output
level of the cartridge used and the amplification factor of the
phono amplifier
•
Phono output = cartridge output (V) x phono voltage gain
•
Convert the dB value to voltage gain here:
http://www.muzique.com/schem/gain.htm
or use the following ta-
ble
•
Choose the closest value from these Input Level Matching val-
ues (V): 0.5 ; 0.56 ; 0.63 ; 71; 0.79 ; 0.89 ; 1.0 ; 1.12 ; 1.26 ; 1.41 ;
1.59 ; 1,78 ; 2.00
2. Volume related parameter customisation
•
It is possible to alter the step size when changing the volume
•
The steps are 1 or 2 dB – 1dB steps gives smoother control, 2
dB o
ff
ers quicker volume setting.
•
Maximum volume: if a high sensitivity power amplifier is used
setting this to -10 dB and this will help protect the loudspeakers
from damage. The normal max. volume is +1 dB.
•
Starting volume at power on: -30dB or -20dB
•
Starting volume after sleep: -30 dB or the last value before
sleep
Gain in dB
Voltage gain
Gain in dB
Voltage gain
40
100
60
1000
45
178
65
1778
50
316
70
3162
55
562
75
5624
icOn Smart TVC preamplifier
