Samson Servo 300
Stereo Power Amplifier, 150 Watts Per Channel at 4 Ohms


The Samson Servo 300 stereo power amplifier has been designed to provide robust, clean output with low distortion and wide dynamic range...
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Samson Servo 300
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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 2x 100 Watts at 8 Ohms, 2x 150 Watts at 4 Ohms 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 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, and with Samson's 3-year warranty, this amplifier will give you years of worry-free operation.

Samson Servo 300 Features:

  • Power to spare - 2x 100 Watts at 8 Ohms, 2x 150 Wattsat 4 Ohms.
  • For mono applications, a Bridge mode links bothchannels of the amplifiers, thus providing even more power, with a powerrating of 300 watts driving an 8 Ohm load.
  • Clean, crisp sound - Impressive audio specificationssuch as 0.04% THD, dynamic range of 105 dB, crosstalk of 80 dB, and frequencyresponse of 10 Hz to 55 kHz guarantee ultra-clean sound quality.
  • Independent input level controls for each channelallow precision adjustments.
  • 10 segment LED signal indicators for each channelcontinuously display power output levels and allow you to correct foroverloading (clipping) conditions.
  • Unique stable bipolar circuit design that continuouslykeeps DC output during idling at or near zero volts (thus keeping idlespeakers at their zero point). This serves to minimize heat overload problemsby effectively preventing the Servo Series from applying power whenunnecessary.
  • Forced air cooling via two temperature-sensitive,variable speed fans provides reliable performance without thermal andoverheating problems.
  • Protection relay circuitry (with dedicated LEDs foreach channel) that guards against overheating or faulty wiring conditions andalso prevents “thumps” when powering on or off. This means that you can usethe Servo 300 with a single power strip into which a mixer or other audiodevices are connected, without danger of damage to connected speakers.
  • Input connectors for each channel accommodate both RCAor balanced 1/4-inch TRS plugs.
  • Output connections are made via 5-way binding posts.
  • Toroidal transformer power supply for high current andlow 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 anyfixed or traveling PA rig.
  • Rugged construction (an all-steel chassis with a coolgray finish and a lightweight anodized aluminum heat sink) makes the Servo 300eminently roadworthy.
  • 3-Year Warranty from Samsons.

Samson Servo 300 Specifications:

  • Stereo Both Channels Driven:
    • 8 Ohms: 100 Watts x 2
    • 4 Ohms: 150 Watts x 2
  • Bridge Mono, 8 Ohms: 300 Watts
  • Signal-to-Noise Ratio (20 Hz - 20 kHz): 102dB
  • Distortion (SMPTE-IM): 0.01%
  • Input Sensitivity @ 8 Ohms: 1.24V (4dBu)
  • Voltage Gain: 33 dB
  • Output Circuitry 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), 20 Hz - 20 kHz, 10dB:
    • Below Rated Power: 0.01%
    • 1 kHz, Rated Power: 0.1%
  • Frequency Response @ 8 Ohms, 1 Watt: 20 Hz - 20kHz, +0/-0.5dB
  • Damping Factor (400 Hz): 280
  • Input Impedance: 15 kOhms Unbalanced, 30 kOhmsBalanced
  • Input Clipping: 10 VRMS (22dBu)
  • Cooling: Continuously variable speed, fan forcedair
  • Connectors (Each Channel):
    • Input: RCA unbalanced and 1/4" (6.3mm) TRS
    • Output: Balanced 5-way Binding post and 1/4" Phone
  • Controls: AC Power switch, Channel 1 and 2volume
  • Indicators:
    • Power On (Blue)
    • Protection (Amber)
    • Signal (Green) for each channel
    • Peak (Red) for each channel
    • Level: -24dB, -20dB, -16dB, -12dB, -8dB, -4dB, -2dB, 0dB, +2dB and +4dB (PEAK)
  • Protection:
    • Short Circuit
    • Thermal
    • Current Limit
    • DC Offset
    • Current Inrush
    • RF Protection
    • Turn On/Turn Off Muting
  • Power Requirements: 115/230, 240VAC, 50/60 Hz
  • Dimensions (WxHxD): 19" x 3.5" x 11.7" (483mm x89mm x 297mm)
  • Net Weight: 20 lbs (9.09 kg)

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