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Samson SERVO 120A 120W Power Amplifier for Studio Recording & Live Applications

Samson SERVO 120A 120W Power Amplifier for Studio Recording & Live Applications

Regular price $239.99 USD
Regular price Sale price $239.99 USD
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Samson SERVO 120A 120W Power Amplifier for Studio Recording & Live Applications

Ideal for powering near field monitors or installation sound, the new Servo 120a provides you with "reference-class" audio performance and reliability in a compact package. This single rackspace stereo power amplifier delivers 60 watts of power per channel into 4 ohms or 120 watts into 8 ohms in bridge mode. The intuitive front panel offers controls and displays that include a power switch, independent left and right-channel input level controls, 10-segment LED meters, a protection LED and a convenient headphone jack and speaker on/off switch for private cue monitoring. Perfect for the recording studio, powering public address systems, onstage monitoring and home theater applications, the 120a's bipolar design and toroidal transformer power supply ensure reliability. The convection cooling design also means there is no fan, so you get an unbelievably quiet performance from this remarkable power amp. And with such versatility, the Servo 120a will provide seamless performance in any number of applications.

  • Single-space 19-inch rackmount servo controlled power amplifier
  • 60 watts per side at 4 ohms stereo
  • 120 watts at 8 ohms (bridged mono)
  • 1/4-inch balanced phone jack and RCA inputs
  • Bi-polar design and toroidal transformer power supply
  • Individual left and right level controls
  • 10-segment, 3-color LED meters
  • Convection-cooled design
  • Headphone jack with speaker output mute


Rated Output Power, per channel (@ 1 kHz)
Stereo mode
 4 Ohm, <0.05% THD+N - 60 W
 4 Ohm, 1% THD+N - 80 W
 8 Ohm, <0.05% THD+N - 50 W
 8 Ohm, 1% THD+N - 55 W
Bridge mode
 8 Ohm, <0.05% THD+N - 120 W
 8 Ohm, 1% THD+N - 150 W
Typical Distortion, per channel
 THD+N (80 kHz LPF @
 1 kHz rated output power) - 0.01%
 IMD (SMPTE 4:1, 60 Hz &
 7 kHz @ rated output power) - 0.03%
Signal To Noise Ratio
 (22Hz - 22kHz
 bandwidth@1dB below
 rated output power) - 105 dB
Frequency Response - 10 Hz - 20 kHz +0, -0.5 dB
3 Hz - 65 kHz, +0, -3.0 dB
Input Sensitivity - -10dBv on the RCA inputs,
+4 dBu on the 1/4" inputs to
achieve rated power. (Level
control set to maximum)
Crosstalk (adjacent channels) - -75 dB, 1 kHz
Output DC Offset Voltage - ± 50 mV, DC Servo Controlled
Headphone Output Level - 400 mW (into 100Ω @
1% THD+N)

Echotone Music LLC is an experienced  long time E-commerce Audio & Musical instrument dealer since 1998.  We take pride in selling quality gear for musicians, sound engineers, production companies and broadcast applications.   

Shipping --Items are well packed and shipped  USPS, UPS or Pallet Freight Service.  Items purchased on Friday may not ship until Monday or until the projected processing period.  We are working hard to get your unit Built ( if needed), processed and shipped.

Returns/Refunds- If there is truly a manufacturing defect a return tag will be provided, otherwise customer pays for return shipping costs.

Returned items must be sealed/unopened in original, brand-new condition, showing no signs of wear or use such as mount marks, plug marks, scratches,  scuffs, dings or scrapes, screw mount marks or collateral material damage.. Items must also include all original packaging, manuals, warrantees & accessories or your return may be subject to a return handling charge.

Refunds or for the Item cost only. If the item was listed as free shipping then the cost of the shipment will be deducted from the units original cost. Gear returned with out all its original packaging, warranty cards and accessories or that shows signs of wear from use, will be subject to an additional service fee. This item is now used and it would be unfair to resell to another customer as new. 

The following products cannot be returned - Clearance items, Custom Builds, items identified as non-returnable, discontinued items, used or NOS items,  electronic software downloads, demo gear, strings, reeds, computers, tubes, earbuds, earplugs, recorders, harmonicas, raw-frame speakers, drumheads, drumsticks, turntable cartridges, fog fluids, clothing/footwear, cleaners, polishes & polishing cloths, software/soundware, books, CDs, DVD's, vinyl records, and videos.

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