Samson SERVO 300 User Manual

PRO

TYPE:

POWER

AMPLIF IERS

AMPLIFIERS

PRODU CT DESCR IPTI ON

POWER AMPLIFIER

SERVO 300

SERIE S

SERVO AMPLIFIERS

PRODUCT SPECIFICATION SHEET

GENERAL DESCRIPTION

The Samson Servo 300 stereo power amplifier has
been designed to provide robust, clean output with
low distortion and wide dynamic range, along with
the dependability demanded by the most professional
audio engineers and installers.

Their convenient 2 rack-space design is compact,
and yet there’s plenty of power available, with 2 x
100 Watts at 8Ω, 2 x 150 Watts at 4Ω over the full
frequency spectrum, from 10 Hz to 55 kHz.

For mono applications, a Bridge mode links both
channels of the amplifiers, thus providing even more
single channel power, with a power ratings of 300
watts into an 8 Ohm load.

Input connections are available for both unbalanced
RCA connections and balanced 1/4-inch TRS
connections. For the outputs, the Servo 300 amplifier
provides standard 5-way binding posts and 1/4
phone jacks. Front-panel controls and displays
include a power switch with LED indicator, as well as
independent left and right channel input level controls.
To help you set the correct operating levels, the Servo
300 amplifier includes front panel Signal, Peak and
Protection LED indicators. There's also a ten-segment
VU meter to help you set a good operating level.

Like all serious power amplifiers, the Servo 300’s
internal electronics are based around a serious power­core, with a over-sized toroidal transformer and large
extruded heat sinks. To keep the Servo 300 amplifier

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CATEGO RY

running cool, the design employs twin internal wind tunnels
with forced-air cooling via two temperature-sensitive, variable
speed fans, which greatly reduce the chance of thermal and
overheating problems. Multi-stage protection for power-up,
over-heating, over-current, short circuit, low output impedance
and DC voltage, assures high reliability under the most
demanding situations.

The Servo 300 amp is road tough with its all steel chassis and
19-inch rack mount design. The Servo 300 amplifier is ready
for a life on the road, or to make its home in a fixed installation.

Optimized for live sound venues, houses of worship, commercial
installations, and for driving small and medium-sized live PA
systems, the Servo Series amplifiers will deliver reliable power
from gig-to-gig, venue-to-venue and day-to-night.

FEATURES

> Power to spare - 2 x 100 Watts at 8Ω, 2 x 150 Watts at 4Ω

> For mono applications, a Bridge mode links both channels

of the amplifiers, thus providing even more power, with a
power rating of 300 watts driving an 8 Ohm load.

> Clean, crisp sound - Impressive audio specifications such

as 0.04% THD, dynamic range of 105 dB, crosstalk
of 80 dB, and frequency response of 10 Hz to 55 kHz
guarantee ultra-clean sound quality.

> Independent input level controls for each channel allow

precision adjustments.

continues»

FRONT PA NEL

BACK PAN EL

©2006 Samson v1.0 5/06

PRODUCT SPECIFICATION SHEET

437.5 mm

483 mm

88 mm

297mm

POWER

SERI ES DESC RIPTIO N CATE GORY

SERVO 300 POWER AMPLIFIER AMPLIFIERS

SERVO 300

FEATURES (continued)

> 10 segment LED signal indicators for each channel

continuously display power output levels and allow you to
correct for overloading (clipping) conditions.

> Unique stable bipolar circuit design that continuously

keeps DC output during idling at or near zero volts (thus
keeping idle speakers at their zero point). This serves to
minimize heat overload problems by effectively preventing
the Servo Series from applying power when unnecessary.

> Forced air cooling via two temperature-sensitive, variable

speed fans provides reliable performance without thermal
and overheating problems.

> Protection relay circuitry (with dedicated LEDs for each

channel) that guards against overheating or faulty wiring
conditions and also prevents “thumps” when powering on or
off. This means that you can use the Servo 300 with a single
power strip into which a mixer or other audio devices are
connected, without danger of damage to connected speakers.

> Input connectors for each channel accommodate both RCA

or balanced 1/4-inch TRS plugs.

> Output connections are made via 5-way binding posts.

> Toroidal transformer power supply for high current and low profile.

> The Servo 300 can be mounted in any standard 19" rack

(taking just two rack spaces), making it easy to integrate
the amp into any fixed or traveling PA rig.

> Rugged construction (an all-steel chassis with a cool gray

finish and a lightweight anodized aluminum heat sink)
makes the Servo 300 eminently roadworthy.

> Extended three-year warranty.

ARCHITECT’S & ENGINEER’S SPECIFICATIONS

The Samson Servo 300 shall be a two space rackmount
stereo power amplifier. It shall deliver 150 watts per channel
at 4 Ohms or 300 watts into 8 Ohms in bridge mono mode.
It shall have 1/4 inch balanced inputs and RCA unbalanced
inputs. It shall be a bi-polar design and use a toroidal
transformer. The front panel shall have volume controls and
LED metering for each channel. The rear panel shall also
have 5 way binding posts for the amplifier outputs.

SERVO 300 SPECIFICATIONS

Stereo both channel driven

8 Ohms .............................. 100 Watts x 2

4 Ohms .............................. 150 Watts x 2

Bridged mono

8 Ohms .............................. 300 Watts

Signal to Noise Ratio (20Hz-20k) ...... 102dB

Distortion (SMPTE-IM) .....................0.01%

Input sensitivity @8 Ohms ................ 1.24V(4dBu)

Voltage Gain .................................... 33dB

Output Circuitr y Class ....................... AB

AC Power

@1/8 rated power 4 Ohms, max. .......0.7A

@1/3 rated power 4 Ohms, max. .......1.7A

@ rated power 4 Ohms, max. ............ 5.0A

Distortion (typical @4 Ohms)
20Hz-20kHz,10dB

below rated power ...............0.01%

1kHz,rated power ................ 0.1%

Frequency Response

@8 Ohms, 1Watt, 20Hz-20kHz ........... +0/-0.5dB

Damping Factor (400Hz) ...................280

Input Impedance .............................. 15k Ohm Unbalanced,

30k Ohm Balanced

Input Clipping .................................. 10Vrms (22dBu)

Cooling ........................................... Continuously variable speed,

fan forced air

Connector s (each channel)

Input ................................. RCA unbalanced and

1/4”(6.3mm) TRS, balanced

Output ............................... 5-way Binding post and

1/4” Phone

Controls .......................................... AC power switch,Channel 1

and 2 volume

Indicators ....................................... Power on (blue), Protection

(amber), Signal (green) for each
Ch., Peak(red) for each Ch.
Level: , -24 dB, -20 dB, -16 dB,

-12 dB, -8 dB, -4 dB, -2 dB. O,
+2 dB and +4 dB (PEAK).

Protection ....................................... Short circuit,Thermal,Current

limit,DC offset,Current inrush,
RF protection, Turn on/ Turn
off muting

Power Requirements ......................... 115/230,240VAC,50/60Hz

Dimensions (W x H x D) .................... 19” x 3.5” x 11.7”

(483mm x 89mm x 297mm)

Net Weight ......................................20 lbs (9.09 kg)