User`s guide

User's Guide QuadMic © RME
4
5. Power Supply
• Typical current drawn at 12 Volt operating voltage: 380 mA (4.6 Watts)
• Accepted power supply voltage DC 9 V – 18, + center pin.
In order to make operating the QuadMic as flexible as possible, it contains a switching regulator
of the latest technology, which not only has a high efficiency (> 90%), but also prevents internal
hum noise, as it operates at 100 kHz. Another advantage: the QuadMic accepts any power
supply with voltages between 9 and 18 V DC.
The supplied high-quality switching power supply, 12 V / 2 A, not only accepts any mains volt-
age between 100 V and 240 V (usable world-wide), but is also fully regulated against voltage
fluctuations. Additionally it only weighs 150 g in spite of its high power of 24 Watts. This power
supply can operate up to four QuadMic when used with a special split adapter cable.
The large voltage range of the
QuadMic also allows for the
use of a rechargeable lead-
battery instead of a power sup-
ply, for completely independent
mobile operation. A matching
connection cable (power jack to
terminals 6.3 mm, see picture)
is part of the supplied contents.
Connecting the QuadMic to a Car’s battery is easy as well. The supplied car cable is plugged in
to the standard lighter connector.
We tested a Panasonic LC-R122R2PG
battery, 12 V 2.2 Ah, which can operate
the QuadMic for 4 hours. Measuring the
voltage while discharging shows that
the QuadMic remains completely in
working order even shortly before the
battery voltage collapses (7 Volts.)