Samson Power Amplifier Servo 4060 Users Manual

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• Rack-mount 4-channel power amplifier (2-space).

• 60 watts per channel into 4 ohms (quad).

• 120 watts into 8 ohms (stereo bridge mode).

• 20 Hz to 50 kHz frequency response.

• Balanced 1/4″and unbalanced RCA inputs.

• Binding post outputs.

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

• Servo circuitry protection against overheating and over-

current.

• High-current output power transistors.

• Efficient bipolar circuit design continuously keeps DC

output during idling at or near 0 V (thus maintaining idle

speakers at their 0 point).

• 2 Front-panel protection LEDs, four 3-color LED meters,

four separate volume controls.

• Four independent left- and right-channel input controls

with 41-position detents.

• Convection cooled (No Fan).

• All-steel chassis with lightweight anodized aluminum heat

sink.

• 3 Year warranty.

SERVO 4060

AMPLIFIER

POWER

The Servo 4060 power amplifier is designed for

recording, live performance, distributed sound and other

permanent A/V contracting applications. This easily

installed 2-space rack-mount quad power amplifier deliv-

ers 60 watts per channel into a 4 ohm load (in stereo

bridge mode, 120 watts into 8 ohms per pair), over a

bandwidth of less than 10 Hz to 85 kHz. The four 60

watt amplifiers can be bridged separately to provide two

120 watt amps or one 120 watt amp and two 60 watt

amps. The 4060 includes high-current output power tran-

sistors and an efficient bipolar circuit design that continu-

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

also features balanced 1/4″and RCA inputs and binding

post outputs on the rear panel. The front panel includes

two front-panel protection LEDs, four 3 color LED meters,

four independent volume controls and thermal and over-

current protection circuitry. The Servo 4060 is convection

cooled for silent operation.

Contact:

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

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN !

USE CLASS 2 WIRING

AVIS;

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

DO NOT EXPOSE THIS EQUIPMENT

TO RAIN OR MOISTURE.

emc

EUR . USA . JPN

BRIDGE

OFF ON

CH4 R CH3 R

CH4 CH3

4Ω 120W

MAX. LOAD

-++-

CH2 L CH1 L

-++-

BRIDGE

OFF ON

SAMSON

SERIAL NUMBER

SERVO 4060

QUAD AMPLIFIER

SAMSON TECHNOLOGIES CORP., U.S.A.

AC

INLET USA & CANADA 115V - 60Hz

EUROPE & UK 230V - 50Hz

650W MAX.

CAUTION:

DISCONNECT SUPPLY CORD

BEFORE CHANGING FUSE.

FOR CONTINUED PROTECTION

AGAINST RISK OF FIRE, REPLACE

ONLY WITH SAME TYPE OF FUSE.

ATTENTION:

DEBRANCHER AVANT DE

REMPLACER LE FUSIBLE.

UTILISERUN FUSIBLE DE

RECHANGE DE MEM TYPE.

USA & CANADA

T 8A/125V (115V)

EUROPE AND UK

T 6.3A/250V (230V)

FUSE

-+ +-

MONO 8Ω

-+

CH2 CH1

4Ω 120W

MAX. LOAD

-+ +-

MONO 8Ω-

+

The power amplifier, being of four channels, shall

deliver a minimum of 60 watts into loads of 4 ohms, or

120 watts into loads of 8 ohms when in the bridged

mode, or 120 watts + 60 watts + 60 watts (one side

bridged). It shall be passively cooled, and shall have inter-

nal short-circuit and thermal protection circuitry. A pro-

tection LED indicator shall activate and the power amplifi-

er shall disconnect the amp loads to protect against short

circuits, overheating, severe overcurrent conditions 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 1/4″Tip-Ring-Sleeve balanced phone connec-

tors and unbalanced RCA gold-plated connectors. Outputs

shall be on insulated binding post connectors.The front

panel shall have 4 independent level controls, each with a

level indicator, a master power switch and amplifier pro-

tection LED.

The power amplifier shall have a frequency response

of 10 Hz to 85 kHz (-3 dB), 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 360 W (120

Vac/60 Hz) and 395 W (220 Vac/50 Hz)). The dimensions

shall allow for standard 19″EIA rack mounting or 17.5″

(444 mm) wide without rack ears. It shall be 3.25″(82.5

mm; 2 rack spaces) high and 10.75″(273 mm) deep.

Weight shall be 25 lb. (11.3kg). The power amplifier shall

carry a three-year warranty.

The power amplifier shall be a SAMSON SERVO 4060.

Output Power (typical all channels driven):

4 Ω, 1 kHz, 1% THD, 86 W

4 Ω, 1 kHz, .0072% THD, 60 W

8 Ω, 1 kHz, 1% THD, 57 W

8 Ω, 1 kHz, .0046% THD, 47 W

8 Ωbridged, 1 kHz, 1% THD, 171 W

8 Ωbridged, 1 kHz, < .013% THD, 142 W

Frequency Response (-3 dB): <10 Hz to 85 kHz

Frequency Response (1 watt): 20 Hz to 20 kHz, -0/-.2

Crosstalk (adj. channels): -82 dB, 1 kHz @ rated output

Distortion (THD+N, 20 Hz to 20 kHz) (80 kHz LPF):

at rated power: < .08%

at 1 watt: < .05%

Sensitivity (level control at maximum): +4 dBu

Damping Factor (8 Ω): > 180

Dynamic Range: 80 dB below rated output

(20 Hz to 22 kHz B.P.F.)

Input Impedance: >10 k Ωbalanced/> 10 k Ωunbalanced

Power Consumption: 360 W @ 120 V/60 Hz

395 W @ 220 V/50 Hz

Dimensions: 17.5″(w) x 3.25″(h) x 10.75″(d)

444 mm (w) x 82.5 mm (h) x 273 mm (d)

Weight: 25 lb / 11.3 kg

ARCHITECT’S & ENGINEER’S

SPECIFICATION SERVO 4060 SPECIFICATIONS

5.0000

4.0000

3.0000

2.0000

1.0000

0.0

-1.000

-2.000

-3.000

-4.000

-5.000 0.0

.1000

.2000

.3000

.4000

.5000

.6000

.7000

.8000

.9000

1.000

10 100 1k 10k 50k

Ap

AUDIO PRECISION servo 4060/4120 THD +N (%) & LEVEL (W) vs FREQ (Hz)

0dB ref THD

Specifications subject to change without notice. ©1998 Samson

FREQUENCY RESPONSE