13
4. FRONT PANEL CONTROLS
Legend
Mains Power Switch
0 = off; 1 = on. The Power LED
illuminates that the unit is ON
Input Selector
This is used to select the desired input signal.
RCA 1:
RCA Input, direct coupled
RCA 2:
The same RCA Input, but with different internal connection, see chap. 6.6, 6.7
XLR:
Balanced XLR Input, see chapter 6.6, 6.7
Muting:
Muting Function of the Input’s, see chapter 6.5
Power LED
lights up when the Power Switch
is on 1
Muting LED
goes out when the Input Selector Switch
is in position “Muting”
Bias Measurement and Ecomode Selector
Eco On:
The Ecomode facility is activated, the Ecomode LED lights up in green
first and changes to orange if the ECO turns down the unit after 8-10
minutes.
Eco Off:
The Ecomode facility is disabled, and simultaneously the BIAS measure-
ment facility is Off.
Position V1 - V4: The BIAS measurement facility is connected to the relevant tubes.
To ensure the accuracy of any adjustment, switch On the Muting function
NOTE:
The MRE 220 SE is equipped with a Soft-Start circuit and a Power-Up delay timer.
The amplifier is ready for use after a delay of approximately 45 seconds. Because there are
no relays in the signal path, a low-level, slightly distorted signal from your source equipment
may be heard through your loudspeakers during warm-up. This circuitry extends tube service
life and also protects the power section from voltage spikes and excessive inrush currents.
Input
Power
RCA 2
RCA 1
XLR
Muting
Function
Muting
V 1
V 2
V 3
V 4
Eco off
Eco on
MRE 220 SE
Summary of Contents for MRE 220 SE
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