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Samson Servo 300 Stereo Power Amplifier, 150W per Channel at 4 Ohms, 20Hz-20kHz Frequency Response

SKU: SA300 MFR: SA300

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List Price: $349.99

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Product Highlights

  • Power to spare - 2 x 100ws at 8 ohms, 2 x 150ws at 4 ohms
  • For mono applications, a Bridge
  • 0.04% THD dynamic range of 105 dB crosstalk of 80 dB
  • Frequency response of 10 Hz to 55 kHz
  • Expect ultra-clean sound quality
  • Clean crisp sound
  • Independent input level controls
  • 10 segment LED signal indicators for each channel
Samson : Picture 1 regular $279.99

About Samson

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 8 ohms, 2 x 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" 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 an 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 amplifier is road tough with its all steel chassis and 19" 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.

Samson Features

  • Power to spare - 2 x 100 Watts at 8 ohms, 2 x 150 Watts at 4 ohms
  • 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
  • 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
  • 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

Samson 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)
Distortion (SMPTE-IM)
Input sensitivity @8 Ohms
Voltage Gain
Output Circuitry Class
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)
Below rated power: 0.01%
1kHz,rated power: 0.1%
Frequency Response @8 Ohms, 1Watt
20Hz-20kHz, +0/-0.5dB
Damping Factor (400Hz)
Input Impedance
15k Ohm Unbalanced, 30k Ohm Balanced
Input Clipping
10Vrms (22dBu)
Continuously variable speed, fan forced air
Connectors (each channel)
Input: RCA unbalanced and 1/4"(6.3mm) TRS, balanced
Output: 5-way Binding post and 1/4" Phone
AC power switch, Channel 1 and 2 volume
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)
Short circuit, Thermal, Current limit, DC offset, Current inrush, RF protection, Turn on/Turn off muting
Power Requirements
Dimensions (W x H x D)
19" x 3.5" x 11.7" (483mm x 89mm x 297mm)
20 lbs (9.09 kg)
Mfr #
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