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6
Guided Tour - Servo-550 Rear Panel
1: Fuse holder - Insert a 10 amp, 250 volt fuse here for 115 volt operation, or a
5 amp, 250 volt fuse for 230 volt operation. We recommend the use of normal
(as opposed to slow-blow) fuses.
2: Binding post (banana jack) output connectors (left/right) - Use these to
connect the Servo-550 to loudspeakers.
3: 1/4" Unbalanced output connectors (left/right) - Alternatively, these can
be used to connect the Servo-550 to loudspeakers. Wiring is tip hot, sleeve
ground—be sure to observe these to maintain correct phase correlation.
4: AC input - Connect the supplied standard 3-pin “IEC” plug here.
5: Heat sink - Make sure this anodized aluminum heat sink is unobstructed
when the amplifier is powered on. In particular, when the Servo-550 is
rack-mounted, we recommend that you keep the rear of the rack open in order
to release heat. If your rack does not have a removable rear, space should be
left open on the front of the rack cabinet, especially immediately above the
Servo-550—remember, heat rises!
6: Bridged Mono/Stereo switch - For normal stereo operation, place this
switch at its up (“Stereo”) position. To bridge the two amplifier sections for
mono usage (with full 550 watt power output), place this switch at its down
(“Bridged Mono”) position. For more information, see Appendix E on page 13
in this manual.
WARNING: Due to the extremely high power output of the
Servo-550 when used in Bridged Mono mode, be sure to use only
8 ohm loudspeakers rated to handle 550 watts of power or greater.
7: Inputs (left/right)
- Connect incoming signal to these electronically balanced
1/4" TRS (Tip/Ring/Sleeve) jacks, wired as follows: Tip hot, Ring cold, and
Sleeve ground. The Servo-550 accepts input levels of any strength but needs at
least 0 dBu to achieve maximum power.
SAMSON
TO PREVENT SHOCK DO NOT OPEN. NO USER
SERVICABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.TO
PREVENT FIRE OR SHOCK HAZARD DO NOT
EXPOSE TO RAIN OR MOISTURE.
CAUTION
HEATSINK MAY BE HOT!
DO NOT BLOCK AIRFLOW
OR OVER-HEATING MAY
OCCUR
RISK OF ELECTRIC SHOCK
DO NOT OPEN
S/N
F
U
S
E
FUSE
10A/250V
CAUTION
!
~AC INPUT
115V/60Hz,1080W
USE CLASS 2 WIRING MAXIMUM LOAD IMPEDANCE 4Ω
RIGHT
LEFT
OUTPUT 275W/4Ω
SERVO 550 STUDIO AMPLIFIER
RIGHT
LEFT
INPUTS
(BALANCED
10KΩ/0dBu)
TIP RING SLEEVE
TIP +
RING -
SLEEVE GND
1
2
3
4
5
7
6
BRIDGED
MONO
STEREO
BRIDGED MONO 8Ω
-
+
GROUND +RIGHT LEFT + GROUND
CAUTION; REPLACE
WITH THE SAME TYPE
FUSE AS INDICATED.
UTILISER UN FUSIBLE
DE RECHANGE DE
MEME TYPE.