Samson Servo 260 Users Manual

Servo 260 servo_260_spec

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• Rack-mount stereo power amplifier (2-space).

• 130 watts per channel into 4 ohms (stereo).

• 20 Hz to 50 kHz frequency response.

• Balanced 1/4″TRS and unbalanced RCA inputs and push-

spring terminal outputs.

• 1/4″and push-spring terminal outputs.

• Turn-on muting to prevent speaker “thumps.”

• Servo protection circuitry continuously keeps DC output

during idling at or near 0 V (thus keeping idle speakers at

their 0 point).

•Protection circuitry against overheating and

overcurrent.

• High-current output power transistors.

• Unique bipolar circuit design.

• Front-panel clip, idle and protection lights.

• Independent left- and right-channel input controls with

41-position detents.

• Convection cooled (No Fan).

• All-steel chassis with new black matte titanium finish and

anodized aluminum heat sink.

SERVO 260

AMPLIFIER

POWER

The Servo 260 power amplifier is designed for

fixed installations, recording and live performance use.

Easily installed, this compact, 2-space rack-mount stereo

power amplifier delivers 130 watts per channel into a 4

ohm load, over a bandwidth of 20 Hz to 50 kHz. The

260 features high-current output power transistors with

a bipolar design and servo circuitry that continuously

keeps DC output during idling at or near 0 volts. It also

features balanced 1/4" Tip-Ring-Sleeve inputs as well as

push-spring terminal outputs, front-panel clip, idle and

protection lights and thermal and overcurrent protec-

tion circuitry. The Servo 260 is convection cooled for

silent operation, eliminating both fan noise and the

need for filter maintenance. Housed in a rugged steel

chassis, the Servo 260 uses high-quality component to

ensure safe, reliable performance in all applications.

Contact:

Samson Technologies Corp., P.O. Box 9031, Syosset, NY 11791-9031 • Phone: (516) 364-2244 • Fax: (516) 364-3888 • www.samsontech.com

∞MAX ∞MAX

CLIP

IDLE

CLIP

IDLE

PROTECTION

SERVO - 260

STUDIO AMPLIFIER 120 WATT STEREO

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.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

S/N

FUSE

6A/250V

CAUTION !

~AC INPUT

115V/60Hz, 490W

USE CLASS 2 WIRING MINIMUM LOAD IMPEDANCE 4 ΩRIGHT LEFT

+RIGHT LEFT+

GROUND

SERVO 260 STUDIO AMPLIFIER

RIGHT LEFT

INPUTS

(BALANCED 10KΩ/0dBM)

CAUTION ; REPLACE WITH

THE SAME TYPE FUSE AS

INDICATED. UTILISER UN

FUSIBLE DE RECHANGE DE

MEME TYPE.

CAUTION

HEATSINK MAY BE HOT!

DO NOT BLOCK AIRFLOW

OR OVERHEATING MAY

OCCUR.

SAMSON

(UNBALANCED 10KΩ/0dBM)

RL

ARCHITECT’S & ENGINEER’S

SPECIFICATION

The power amplifier, being of two channels, shall

deliver a minimum of 90 W into loads of 8 ohms each with

both channels operating, or 130 W into loads of 4 ohms

each with both channels operating. It shall be passively

cooled, and shall have internal short-circuit and thermal

protection circuitry. A protection LED indicator shall acti-

vate and the power amplifier shall shut down to protect

against short circuits, overheating, severe overcurrent con-

ditions or DC offset present at the outputs. The power

amplifier shall have slow start-up and muted inputs on turn-

on. Inputs shall be on balanced 1/4″Tip-Ring-Sleeve con-

nectors and outputs shall be on 1/4″phone connectors and

on push-spring terminals. The front panel shall have indepen-

dent level controls for left and right channels, a master power

switch and LED indicators for Clip, Idle and amplifier pro-

tection.

The power amplifier shall have a frequency response

of 20 Hz to 50 kHz, signal-to-noise equal to or greater than

103 dB and THD less than 0.03%. Total power consumed at

full audio power shall be 490 W (115 Vac) and 490 W

(230/240 Vac). The dimensions shall allow for standard 19″

EIA rack mounting. It shall be 3.5″(88 mm; 2 rack spaces)

high and 9.5″(240 mm) deep. Weight shall be 17.6 lb. (8

kg). The power amplifier shall carry a three--year warranty.

The power amplifier shall be a SAMSON SERVO 260.

Rated Output Power (1 kHz): 130 W into 4 Ωper channel

90 W into 8 Ωper channel

Signal-To-Noise Ratio: 103 dB

Frequency Response: 20 Hz to 50 kHz

THD+N, 20 Hz to 20 kHz: < 0.03%

Input Sensitivity: 0 dBm to achieve rated power

(Level control set to maximum)

Crosstalk (at 7 kHz sine wave): 85 dB typical

Power Requirements: 115 Vac • 50/60 Hz

Power Consumption (at full power): 490 W (115 Vac)

490 W (230/240 Vac)

Dimensions: 3.5″(h) x 19″(w) x 9.5″(d)

88 mm (h) x 482 mm (w) x 240 mm (d)

Weight: 17.6 lbs. • 8 kg

SERVO 260 SPECIFICATIONS

UL

®

5.0000

4.0000

3.0000

2.0000

1.0000

0.0

-1.000

-2.000

-3.000

-4.000

-5.000

10 100 1k 10k 50k

Ap

AUDIO PRECISION Servo 260 LEVEL(dBr) & THD+N(x) vs FREQ(Hz)0dB ref 1.000

.9000

.8000

.7000

.6000

.5000

.4000

.3000

.2000

.1000

0.0

FREQUENCY RESPONSE

Specifications subject to change without notice. ©1998 Samson