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Comparisons
These diagrams show how our VOLTAiR Technology compares to other circuits.
The direct relation between operating level and maximum level is fundamental for the classification: the higher
the operating level, the higher the maximum level a circuit can handle. And since virtually all essential acoustic
and musical parameters depend on this relation, a higher operating voltage also has a positive impact on the
dynamic range, distortion limit and signal-to-noise ratio.
Operating Voltage
Volt
120
100
80
60
40
36 V
30 V
20
0
+ / - 15 Volt
+ / - 18 Volt
8
120 V
+ / - 60 Volt
Max. Audio Level
dBu
145
140
135
130
129,1
125
124,2
120
OPA 134@30 V
OPA 134@36 V
I
F R
VOLTAiR – 120V Rail Technology
141,4
SPL-OP@120 V
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