SPL Diamond Desktop DAC and Preamplifier (Black) - Manual (Page 8)

8
VOLTAiR – 120V Rail Technology
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.
0
20
40
60
80
100
120
Volt
30 V
120 V
+ / - 15 Volt + / - 60 Volt
Operating Voltage
120
125
130
135
140
145
dB
124,2
141,4
OPA 134@30 V SPL-OP@120 V
Dynamic Range
I R F