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SKU: OSD-AMP200 2-Channel 125W Per Channel, High Current Class A/B Stereo Amplifier Toroidal Transformers - AMP200

Purchase 2-Channel 125W Per Channel, High Current Class A/B Stereo Amplifier Toroidal Transformers - AMP200
  • SKU: OSD-AMP200 high-power-stereo-amplifier

    2-Channel 125W Per Channel, High Current Class A/B Stereo Amplifier Toroidal Transformers - AMP200

  • $299.99

    Compare at: $449.99 You Save $150.00

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A team OSD favorite, the AMP200 is a high current 2-channel amp with loads of features. This amp lets you home run (directly to the back of the amp) two pairs of speakers or 4 speakers total. Since it's high current, you can add up to 4 pairs of speakers (8 speakers total) by adding OSD speakers selectors such as the DSM4. Rated at 80 Watts per channel at 8 ohms, the OSD-AMP200 is overload stable so it's ideal for use anywhere clean power is needed. It also includes a dual source switching circuit. When you connect two independent sources number (say your iPod and a TV in another room) source one takes priority when it is active. When source one is turned off, source number two comes on. Note: You cannot play two sources simultaneously. For this feature you need a multi-channel amp like our MX1260. Step-up features rarely seen in amps of this price range include a built-in voltage meter, and front mounted volume and balance trim controls. 

High Performance, High Current Power 
Rated at 80 watts per channel at 8 ohms, and stable down to 2 ohms, the OSD-AMP200 is overload stable so it's ideal for use anywhere clean power is needed. It also includes a dual source switching automatic circuit. Step-up features rarely seen in amps of this price range include a built-in voltage meter, and front mounted volume and balance trim controls. 

AMP200 offers 80 watts RMS per channel of power, with bridgeable outputs for up to 250 watts RMS. A, B, or A+B speaker selector switches make managing connected outputs easy. And a signal-sensing power on feature lets the amp power up automatically when you power on your source. 

Automatic Source Switching 
The AMP200 can automatically switch between connected sources, thanks to a priority signal-sensing feature. So if you have your iPod connected to input 2, then decide you want to watch a movie, when the DVD player connected to the main input 1 is turned on, the AMP120 will automatically switch to that source. 

A variable delay control lets you adjust the amount of time needed to "listen" for a signal from your main input, between 3 and 15 seconds, so things like gaps between CD tracks won't accidentally switch your inputs. 

Works with Smartphones, iPods, and Other Portable Devices 
Use the AMP200 to connect your Smartphone or other portable music device (as long as you have a headphone jack.) The AMP200 includes two RCA signal level inputs marked as red for right and white for left. Using an RCA-to-mini stereo cable (sold separately), plug the 3.5mm stereo connector into the headphone output of your iPod or other portable device, then connect the RCAs to one of the inputs of the AMP200.

Warning: California's Proposition 65


This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to

  • Design Type: Class A/B
  • Peak Power Output: 200 Watts per channel
  • Maximum 8 ohm stereo output power at less than 0.2% THD+N: 80W
  • Maximum 4 ohm stereo output power at less than 0.2% THD+N: 125W
  • Maximum 8 ohm Bridged-Mono output power at less than 0.2% THD+N: 250W
  • Frequency Response: (20Hz to 20kHz) +0.0dB, -0.5dB
  • Impedance: 8 ohm to 2 ohm stable
  • Signal to Noise Ratio: -103dB referred to rated power at 4 ohms
  • Turn on options: maunal on, signal sensing, and 12V Trigger mode
  • Unique Automatic Dual Source Priority Switching with Speaker Level Input Option
  • Input and Output Terminals: Interrupting line input, main input/output, 12V trigger, speaker zone A output, speaker zone B output, RCA input (4 total)
  • Rack Mountable? Yes
  • Dual Source Switching? Yes
  • Dimensions (W x H x D): 16.5" x 3.5" x 13.5"
  • Weight: 30 Lbs
  • Warranty: 2 years
129 Questions asked
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What's on your mind?

anthony hendrix • 12/17/2019, 2:17:43 PM at my bar, is it possible to have one input source ; a juke box and the second input source ; the output from from my dj equipment, output to4 speakers on my patio
Customer Service • 12/17/2019, 2:17:43 PM
Hi Anthony: It is true the AMP 200 features automatic source switching so you can hook up two sources but you are limited to listening to only one at a time. Not sure that will work for you application. Another idea is to purchase two AMP 200, one for the Jukebox and a second one for the DJ Mixer. Then add a SSVC4 which is a dual source four zone speaker selector with internal Impedance matching volume control with independent A or B source switch per zone. You could configure the SSVC4 to power 3 pair of speakers in the bar and on the outdoor area drive the two pair of speakers of a single zone of the speaker selector. You could add your TV audio as a second source to the First amp with the Jukebox. Now you could play either your Jukebox or TV output inside the bar while your band plays outside. You could even pipe in the band throughout the bar as well as outside at the same time. Our SSVC4 is popular for bars where everything is controlled in central location (typically behind the bar). I would be more than happy to provide a wiring diagram if this sounds like something that might work for you. Feel free to contact me at TL/3973
Mike • 12/17/2019, 2:17:43 PM I am interested in running 2 pairs of 8-ohm 75w omni-speakers with this amp. At 4-ohms it looks like it has the power to do this. Would I hook all four speakers to speaker A (or B) rather than 1 pair to A and 1 pair to B in order to create this load? Or what would be the best configuration to maximize this system. The speakers will be outside on the pool deck, and there is a decent amount of ambient noise I need to overpower. Thanks.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Mike: Whether you run these speakers together out of a single set of outputs (either A or B) or run each pair of speakers off it's own set of outputs (one pair to A and second pair to B) they are in parallel and when playing both pairs will be closer to a 4 ohm load and draw more current. You also have the flexibility to drive one pair at at time or both together. You will have plenty of output either way. Good choices TL/3981
Drew • 12/17/2019, 2:17:43 PM Hello, i will be using the AMP200 to power the front L and R of my 7.2.4 Atmos speaker layout. How should i set the Master volume on the back and the front panel volume before starting my calibration? Thanks!
Customer Service • 12/17/2019, 2:17:43 PM
Hi Drew: Connect the AMP200 (Line 2 input) to your two channels (Front Right and Front Left Speaker pre amp outs) and turn the volume knob on the front panel to max all the way clockwise. This knob works like a Volume Control where you are turning the volume down ( attenuate the volume). It does not add gain. Then adjust the volume level on your receiver (the other channels not connected to the AMP200)Set the volume levels for the two front channels to match the volume levels of the other channels. Now adjust your left and right master gain levels turning them clockwise to a level where it sounds like your are clipping, then back it off slightly. Turn your front panel volume level to 12:00 o'lock (halfway). Now you can start your calibration so all the channels will be calibrated. Good luck... TL/4114
Jay • 12/17/2019, 2:17:43 PM How is the amp effected by cold temperatures? It will be placed in an outdoor patio area that is weatherproof, but not heated during the winter months. Will I need to unplug it to carry inside when it gets below freezing? What if a small heater was used to keep the space above freezing, would that matter?
Customer Service • 12/17/2019, 2:17:43 PM
Hi Jay: Are you planning to use the amplifier during the cold months? Is that why you might want to provide heat to its location? If is a choice of sitting out in the cold and you do not plan to use it than I would suggest bringing it inside. I do not think Virginia gets that cold for extended periods so if you are planning to use it all winter you can get away with out heating it. Good luck TL/4149
jim zarr • 12/17/2019, 2:17:43 PM A lot of money for just watts, do you have a model with a tuner?
Customer Service • 12/17/2019, 2:17:43 PM
Hi Jim: This is a true A/B audiophile Sound Quality Amplifier. It features a Large High Power Toroidal Power Supply typically found in much more expensive amplifiers. It also has substantial internal capacitance and uses nothing but true discrete components; no IC's in the studio section. It is considered a High Current Power Amplifier which increase the amount of output current as you lower the impedance. Note it is 2 ohm stable. It is really meant to run at 4 ohm to get your monies worth. It will drive three pair of 8 ohm speakers in parallel (for a 2.6 ohm impedance). It contains plenty of internal heat sink where the Fully complimentary Bi-Polar output devices are mounted directly to the metal. It weights more than 24 pounds nearly three times as much as the AMP120. I tell people connecting the AMP200 at 8 ohm is like buying a Corvette and driving it at 35 miles an hour on the freeway (in your case the I5 or 205). This has been a real workhorse for us. It is the number 1 amplifier I recommend in the Upload Your Plans System Designs. Great Choice TL/4150