User's Guide QuadMic
© RME
4
5. Power Supply
•
Current drawn at 12 Volt operating voltage: 380 mA (4.6 Watts)
•
Accepted power supply voltage DC 7 V – 38 V, AC 7 V – 27 V.
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 7 and 38 V DC, no matter which polarity, and even between 6
and 28 V AC. Given the power supply can deliver the current needed.
The supplied high-quality switching power supply, 12 V / 1.25 A, not only accepts any mains
voltage between 100 V and 240 V (usable world-wide), but is also fully regulated against volt-
age fluctuations. Additionally it only weighs 150 g in spite of its high power of 15 Watts. This
power supply can operate up to three 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.
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 (6 Volts.)
