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Description
Samson SERVO120A 120W Power AmplifierThe Samson Servo 120 Power Amplifier is a stereo power amplifier that can be used for all types of recording applications, live performance or permanent installs. The amplifier provides "reference class" audio performance and reliability in a compact, single rack space package. The Servo 120 utilizes high current output power transistors and features an efficient bipolar circuit design that continuously keeps DC output during idling at or near 0
The Samson Servo 120 Power Amplifier is a stereo power amplifier that can be used for all types of recording applications, live performance or permanent installs. The amplifier provides "reference-class" audio performance and reliability in a compact, single rack space package.
The Servo 120 utilizes high current output power transistors and features an efficient bipolar circuit design that continuously keeps DC output during idling at or near 0 volts. This keeps idle speakers at their zero point. Thermal and overcurrent protection circuitry is provided, and the amplifier is convection cooled for silent operation, eliminating fan noise and the need for filter maintenance.
The Servo 120 provides balanced 1/4" TRS and RCA coaxial inputs and push-spring terminal outputs. Also included is a front-panel protection light, a headphone output, a speaker on/off switch, and 3-color LED meters.
- A stereo power amplifier for recording, live music, and installation applications
- Operates in both stereo or bridged mono
- 50 Watts per channel into 8 Ohms
- Stable bipolar circuit design continuously keeps DC output during idling at or near 0 volts, preventing unnecessary power applications to minimize heat overload
- Toroidal transformer power supply for high current and low profile
- High-current output power transistors
- Protection relay circuitry (linked to the DC offset circuitry) that prevents "thumps" when powering on or off
- Smart Servo circuitry protection against overheating and overcurrent
- Functions in stereo or bridged mono modes
- Front-panel headphone jack with speaker disable switch
- Five-segment LED meters for each channel continuously display power output levels and allow the user to correct for overloading (clipping) conditions
- Convection cooled (no fan)
- Compact, 1RU space unit
-
Power Rating Stereo @ 4 ohms: 60 watts per channel
Stereo @ 8 ohms: 50 watts per channel
Bridged @ 8 ohms: 120 wattsDamping Factor >150 Input Sensitivity + 4dBu to achieve rated power (level control set to maximum) Input Impedance >10k ohms balanced/>10k ohms unbalanced Gain Not specified by manufacturer Frequency Response 10Hz to 20kHz Signal-to-Noise Ratio 105dB (22Hz to 22kHz bandwidth @ dB below rated output power) Total Harmonic Distortion (THD) <0.01%, 80kHz LPF @ 1kHz, rated output power Input Connections 2 x 1/4" TRS phono, 2 x RCA coaxial Output Connectors 4 x Push-spring terminal
1 x HeadphoneControls Front Panel 2 x Rotary input level control (41 position detented)
Speaker on/off switch
Power switchControls (Rear) 1 x Stereo/Mono Bridge switch Indicators 1 x 5 LED level metering, 1 x Protect, 1 x Power LED Cooling Convection Power Consumption 240W @ 120 V/60Hz Dimensions 19" x 11 1/2" x 1 3/4" Weight 15.6 lbs (7.08kg) Specialties Front-panel speaker on/off switch and dedicated headphone jack enables private cue monitoring of the input signal
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Great End Tables
Color: Ink Black, Size: 2 pack
Nice, sturdy & heavy end tables. Easy to assemble & the parts supplied help make it very durable l. Would definitely buy again.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
Cheap, looks good and works good
Size: 13"-32", Style: Dual Arms
Mostly painless install, packaging was subpar but everything works well. Holds a 27" monitor and a 24" monitor very well. Adjustable angles and hinges allowing for customization for your needs. Seems to be very sturdy and hasn't dropped since making sure everything is tight.
Overall, worth it compared to more expensive options.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Sturdy, Extremely Adjustable, and Saves Huge Desk Space!
Size: 17"-49", Style: Single Arm
This WALI monitor mount is incredibly solid and handles the weight of my monitor easily without any sagging or shaking. The gas spring arm moves fluidly, making it super easy to adjust the height, angle, and tilt whenever I need to. Installation was straightforward with clear instructions, and it has freed up so much valuable desk space. Excellent build quality for a great price!
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Solid Mount for a Large Monitor
Size: 17"-49", Style: Single Arm
Picked this up to mount a single 37" monitor to my adjustable desk and it’s been working great. The arm feels sturdy and holds the weight of the monitor without sagging or drifting over time.
Installation was pretty straightforward and it gave me a lot more desk space compared to using the factory stand. It also moves smoothly when adjusting the monitor position or changing desk height.
If you’re running a larger display on a standing desk setup, this is a solid option that feels much more substantial than some of the cheaper monitor arms out there.
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Reviewed in the United States on May 11, 2026
★★★★★ 4
Solid Budget Monitor Arm With a Few Trade‑Offs
Size: 13"-34", Style: Single Arm
The WALI Single Monitor Mount performs about the same as my VIVO single monitor arm, which was a pleasant surprise given the lower price point. Setup was straightforward, and the gas spring adjustment works well once dialed in. It holds my monitor securely and offers the full range of motion I expected—tilt, swivel, rotation, and height adjustments all function smoothly.
That said, the materials and overall build quality do feel a bit cheaper compared to higher‑end arms. It’s not flimsy, but you can tell where costs were saved. If you’re willing to spend roughly 60–70% more, you can definitely get a noticeably sturdier and more refined arm. Still, for a budget option, this one delivers exactly what it promises.
Pros
- Works just as well as the VIVO arm in terms of functionality
- Easy to install with both clamp and grommet options
- Gas spring provides good adjustability once set
- Excellent value for an entry‑level monitor arm
Cons
- Materials feel cheaper than premium alternatives
- Build quality isn’t as high as more expensive arms
Overall
As an introductory monitor arm, this is an excellent choice. It does everything the VIVO arm can, just with slightly lower‑end materials. If you’re on a budget or setting up a simple workstation, it’s a great fit. If you want something more robust for long‑term heavy use, spending a bit more will get you a significantly more refined Monitor arm.
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Reviewed in the United States on December 23, 2025
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