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James Loudspeaker® 3 Channel Power Amplifier
James Loudspeaker® 3 Channel Power Amplifier 0
James Loudspeaker® 3 Channel Power Amplifier 1
James Loudspeaker® 3 Channel Power Amplifier 2

James Loudspeaker® 3 Channel Power Amplifier

Model #: A2.1
James Loudspeaker
At a Glance
James Loudspeaker® 3 Channel 360W Amplifier with selectable subsonic filter and selectable input sensitivity
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Get to know this product.

Designed and engineered by James Loudspeaker, we leveraged our decades of sound engineering experience to build what might be the simplest, most smartly designed amp in the industry. Designed for bi-amping in mind, the A2.1 provides left and right stereo channels, a subwoofer channel, and a simple to use crossover with level adjustments, providing extreme flexibility and outstanding performance for a number of applications.

Featuring analog, and digital inputs, and a IR remote control, the A2.1 is ideal for integration with a stand-alone TV in a bedroom or guest room where you desire premium L/R & Subwoofer sound. This may include a Sound Bar with an in-wall/in-room subwoofer.

Switchable input sensitivity allows use with mobile phones and standard audio sources and a switchable subsonic filter of 30Hz or 50Hz allows better matching to subwoofers.

The A2.1 is perfect for smaller landscape system using both left, right and subwoofer speakers. Check out our prepackaged landscape systems, the 65AT4, the 85AT4 and the 105AT4.

The A2.1 makes a great addition to your computer to add a high-end media experience requiring rich L/R & Subwoofer sound.


  • Number of Channels: 3 (left/Right/subwoofer)
  • Nominal Power Output (8 ohms): 40W / 40W / 70W (L/R/Sub)
  • Nominal Power Output (4 ohms): 65W / 65W / 170W (L/R/Sub)
  • Nominal Power Output (2 ohms): 110W / 110W / NA (L/R/Sub) sub channel not 2 ohms stable
  • THD at 1W: 0.1%
  • Frequency Response: 20Hz-20kHz +/- 0.2dB
  • Input Sensitivity (RCA): switchable 0.2V or 0.775V
  • Input Sensitivity (XLR): switchable 0.2V or 0.775V
  • Auto Off Time: 20min turn off time
  • AC Power Req: Switchable 115V/230V or 50Hz/60Hz 600W
  • Height: 1.75 in (44.45 mm)
  • Width: 19 in (482.60 mm)
  • Depth: 10 in (254.00 mm)
  • Rack Spaces: 1U
  • Shipping Weight: 12 lbs (5.44 kg)
  • Supplied Accessories: Remote control, 10ft IR receiver, 6ft RCA to mini cable, IEC power cable, Manual


Coaxial Digital Audio Inputs:1
Optical Digital(Fiber Optic) Audio Inputs:1


Power Off Consumption (watts):<0.5W

Misc. Specs

Depth (in.)10
Height (in.)1.75
Impedance2; 4; 8 Ohms
Width (in.)19
Analog Audio(RCA) Input1
Color Finish NameBlack
Product Weight (lbs.)7.5
Amplifier Channels3
WarningProposition 65 Warning for California Residents