Rega Ios Reference - Manual (Page 12)

IOS SPECIFICATION
General conditions
Generator source resistance 15Ω
Load set to 100Ω
& DC resistance set to 15Ω (Apheta)
Output load resistance 100KΩ
Filter off (unless otherwise stated)
Input sensitivity for 200mV output 61uV - 70dB gain setting I
118uV - 64dB gain setting II
Gain input to output 64dB Minimum
70dB Maximum
Input load 50, 100, 150, 300 & 400Ω
DC resistance (Zobel network) 5 to 7.5Ω (6.25Ω nominal)
7.5 to 10 Ω (8.75Ω nominal)
10 to 12.5Ω (11.25 Ω nominal)
12.5 to 15 Ω (13.5Ω nominal)
MC Transformer Sowter 8055
Input overload @ 1KHz 8.7mV - 64dB gain setting
4.5mV - 70dB gain setting
Maximum output level 14.7V RMS
Rated output level 200mV
Output resistance 100Ω
Minimum output load resistance 1KΩ for –3dB point @ 15Hz
RIAA accuracy (Better than) 0.2dB 100Hz to 40KHz
Frequency Response 14Hz (-3dB) to 54KHz (-0.5dB)
THD (Better than) 0.008% @ 1.5V 20Hz 20KHz
THD bandwidth 100Hz to 22KHz
Output noise level -85dBV (64dB gain setting & 15Ω input
load)
Notch Filter centre frequency 8.5KHz
Notch Filter maximum depth -6.5dB
Notch Filter Q 2.5
AC Supply 230V & 115V Nominal +/-10%
Power Consumption 21 Watts
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